When you think that of electrical fields, you almost certainly consider electricity—the stuff that makes modern life possible, powering every part from household appliances to cell phones. Researchers have studied the principles of electricity because the seventeenth century. Benjamin Franklinfamous for his kite experiment, proved that lightning was indeed electrical.

Electricity has also enabled major advances in biology. A way called Electrophoresis allows scientists to investigate the molecules of life – DNA and proteins – by separating them based on their electrical charge. In addition to being commonly taught in secondary school biology, electrophoresis is a workhorse of many clinical and research laboratories. including mine.

I’m a Professor of Biomedical Engineering who works with miniaturized electrophoretic systems. Together with my students, my students are developing portable versions of those devices that quickly detect pathogens and help researchers combat them.

What is Electrophoresis?

Researchers discovered electrophoresis within the nineteenth century by applying an electrical voltage to clay particles and watching them move through a layer of sand. After further advances within the twentieth century, electrophoresis became the usual in laboratories.

To understand how electrophoresis works, we first need to clarify it electric fields. These are invisible forces that electrically charged particles comparable to protons and electrons exert on one another. For example, a particle with a positive electrical charge could be drawn to a particle with a negative charge. The law “opposites attract” applies here. Molecules can even have a charge; Whether it’s more positive or negative will depend on the variety of atoms that compose it.

During electrophoresis, an electrical field is created between two electrodes connected to an influence supply. One electrode is positively charged and the opposite negatively charged. They are positioned on opposite sides of a container crammed with water and a few salt, which might conduct electricity.

When charged molecules comparable to DNA and proteins are present in water, the electrodes between them create a force field that pushes the charged particles toward the oppositely charged electrode. This process is named electrophoretic migration.

Researchers value electrophoresis since it is fast and versatile. Electrophoresis might help analyze several types of particles, from molecules to microbes. Additionally, electrophoresis might be performed using materials comparable to paper, gels, and thin tubes.

1972 physicist Stanislav Duchin and his colleagues observed one other variety of electrophoretic migration called nonlinear electrophoresis This could separate particles based not only on their electrical charge, but additionally on their size and shape.

Electric fields and pathogens

Further advances in electrophoresis have made it a useful gizmo for combating pathogens. In particular, the microfluidics revolution has enabled the emergence of tiny laboratories that allow researchers to quickly detect pathogens.

In 1999, researchers found that these tiny electrophoresis systems could do that too Separate intact pathogens by differences of their electrical charge. They placed a combination of several types of bacteria in a really thin glass capillary, which was then exposed to an electrical field. Some bacteria left the device faster than others attributable to their different electrical charges, allowing the microbes to be separated by type. By measuring their migration speed, scientists were in a position to discover each species of bacteria present within the sample in a process that took lower than 20 minutes.

Microfluidics has improved this process even further. Microfluidic devices are sufficiently small to slot in the palm of your hand. Their miniature size allows them to perform analyzes much faster than traditional laboratory equipment since the particles wouldn’t have to travel as far through the device for evaluation. This signifies that the molecules or pathogens researchers are in search of are easier to detect and fewer prone to be lost in evaluation.

For example, samples analyzed with traditional electrophoresis systems would must travel through capillary tubes roughly 11 to 31 inches (30 to 80 centimeters) long. Processing can take 40 to 50 minutes and shouldn’t be portable. In comparison, samples analyzed with tiny electrophoresis systems migrate through microchannels which are just one to five centimeters long. This means small, portable devices with evaluation times of approx two to a few minutes.

Nonlinear electrophoresis has enabled more powerful devices by allowing researchers to separate and detect pathogens based on their size and shape. My lab colleagues and I even have shown that combining nonlinear electrophoresis with microfluidics shouldn’t be only possible separate several types of bacterial cells but additionally live and dead bacterial cells.

Tiny electrophoresis systems in medicine

Microfluidic electrophoresis has the potential to be useful across industries. First and foremost, these small systems can replace traditional evaluation methods faster results, more convenience and lower costs.

For example when Testing the effectiveness of antibioticsThese tiny devices could help researchers quickly detect whether pathogens are dead after treatment. It could also help doctors resolve which drug is best for a patient by quickly distinguishing between normal bacteria and antibiotic-resistant bacteria.

My lab can also be working on developing microelectrophoresis systems to purify bacteriophage viruses that might be used for this purpose Treatment of bacterial infections.

As development continues, the facility of electrical fields and microfluidics can speed up how researchers can detect and combat pathogens.

Flooding from Hurricane Helene has eased, but health risks are increasing severely affected regions of the North Carolina Mountainswhere many individuals have lost access to electricity and clean water.

More than Across the Southeast, 150 deaths were attributed According to The Associated Press, Hurricane Helene struck inside days of the storm in late September 2024, leaving lots of of individuals missing. In many areas affected by flooding Houses remained isolated from damaged roads and bridges. The telephone service was down. And the facility would probably be out for weeks.

As Disaster Epidemiologist As a native North Carolinian, I actually have heard devastating stories from the region. Contaminated water is certainly one of the largest health risks, but residents also face psychological harm, stress that worsens chronic illnesses, and a number of other other threats.

Water Risks: What you’ll be able to't see can harm you

Access to wash water is one of the vital pressing health issues following a flood. People need water to drink, prepare food, clean, bathe, and even flush toilets. Contact with contaminated water can occur cause serious illnesses.

Flooding with sewage or other harmful pollutants can result in infectious diseases, especially in people who find themselves already sick, immunocompromised, or have open wounds. Even after the water recedes, Residents could underestimate The potential contamination from invisible bacteria similar to fecal coliform, heavy metals similar to lead and organic and inorganic contaminants similar to pesticides.

In Asheville, the flood caused a lot damage to water treatment plants and pipes that officials warned the town about it possibly without running water for weeks. Most private wells also require electricity to pump and filter the water, and plenty of people in the realm might be without power for weeks.

State and federal authorities began delivering additional bottled water to the region However, supplies were limited shortly after the storm and it is probably going that some people is not going to have the opportunity to achieve distribution sites soon. Access to fresh food is one other problem in lots of areas where roads and bridges are flooded.

In houses, Flooding can result in further health risksespecially when mold grows on wet fabrics and wallboards. Standing water outdoors also increases your risk of exposure to mosquitoes that carry diseases like West Nile virus. mosquitoes are still energetic in lots of parts of the region in autumn.

Flooding, isolation and access to healthcare

Many of the pictures that appeared within the news after the hurricane showed streets, hospitals and whole cities inundated by floodwaters. More than 400 roads were closed in North Carolina Blocking access to the most important regional sanatorium of Asheville in addition to many smaller communities.

While supplies might be airlifted to clinics, residents who urgently need access to treatments similar to dialysis or each day medication for substance use disorders could have been denied access. Medical staff might also not have access to its clinics.

Cuts and other injuries are common after storms as people clean up debris and even small wounds can turn out to be infected. Stress, exertion and exposure to heat can even result in this chronic diseases worsen similar to cardiovascular and respiratory diseases.

Mental health and long-term effects

Beyond the risks to physical health, fear, stress and loss can even have an effect on mental health.

Research has shown this time and time again mental health of the emergency services may suffer during large-scale disasters, especially in the event that they know disaster victims, are coping with serious injuries, or feel helpless. All of those conditions were present when the floods of Hurricane Helene swept away dozens of individuals and plenty of more were missing.

Stigma, costs and a scarcity of mental health care providers also contribute ongoing mental health challenges after disasters. Research shows that a big percentage of People face psychological problems after disasters.

According to the Substance Abuse and Mental Health Services Administration, two federal grant programs provide post-disaster mental health support to individuals and communities. However, certainly one of these sources of financing ends after 60 days, the opposite after a 12 months. Given Western North Carolina's decades-long recovery from Hurricane Helene, I imagine these programs are woefully inadequate to fulfill the mental health needs of the storm-affected population.

Flooded regions need long-term help

Western North Carolina is usually called a “climate haven” due to its cooler summers. And Asheville particularly has turn out to be a well-liked spot for retirees and recent residents. Current data shows the town has that second highest migration rate within the country.

But Helene and other extreme storms which have swept the region highlight their vulnerability.

In the wake of the flooding, each newcomers unfamiliar with the risks and longtime residents will struggle with ongoing health problems as they fight to wash up and rebuild from the storm. Even as attention shifts to other disasters, people on this region will proceed to need assistance recovering for months and years.

Flooding from Hurricane Helene has eased, but health risks are increasing severely affected regions of the North Carolina Mountainswhere many individuals have lost access to electricity and clean water.

More than Across the Southeast, 150 deaths were attributed According to The Associated Press, Hurricane Helene struck inside days of the storm in late September 2024, leaving a whole lot of individuals missing. In many areas affected by flooding Houses remained isolated from damaged roads and bridges. The telephone service was down. And the ability would probably be out for weeks.

As Disaster Epidemiologist As a native North Carolinian, I even have heard devastating stories from the region. Contaminated water is one in all the largest health risks, but residents also face psychological harm, stress that worsens chronic illnesses, and several other other threats.

Water Risks: What you may't see can harm you

Access to scrub water is one of the vital pressing health issues following a flood. People need water to drink, prepare food, clean, bathe, and even flush toilets. Contact with contaminated water can occur cause serious illnesses.

Flooding with sewage or other harmful pollutants can result in infectious diseases, especially in people who find themselves already sick, immunocompromised, or have open wounds. Even after the water recedes, Residents could underestimate The potential contamination from invisible bacteria similar to fecal coliform, heavy metals similar to lead and organic and inorganic contaminants similar to pesticides.

In Asheville, the flood caused a lot damage to water treatment plants and pipes that officials warned the town about it possibly without running water for weeks. Most private wells also require electricity to pump and filter the water, and plenty of people in the realm could possibly be without power for weeks.

State and federal authorities began delivering additional bottled water to the region However, supplies were limited shortly after the storm and it is probably going that some people won’t have the ability to achieve distribution sites soon. Access to fresh food is one other problem in lots of areas where roads and bridges are flooded.

In houses, Flooding can result in further health risksespecially when mold grows on wet fabrics and wallboards. Standing water outdoors also increases your risk of exposure to mosquitoes that carry diseases like West Nile virus. mosquitoes are still energetic in lots of parts of the region in autumn.

Flooding, isolation and access to healthcare

Many of the photographs that appeared within the news after the hurricane showed streets, hospitals and whole cities inundated by floodwaters. More than 400 roads were closed in North Carolina Blocking access to the primary regional health facility of Asheville in addition to many smaller communities.

While supplies might be airlifted to clinics, residents who urgently need access to treatments similar to dialysis or day by day medication for substance use disorders could have been denied access. Medical staff may additionally not have access to its clinics.

Cuts and other injuries are common after storms as people clean up debris and even small wounds can turn into infected. Stress, exertion and exposure to heat also can result in this chronic diseases worsen similar to cardiovascular and respiratory diseases.

Mental health and long-term effects

Beyond the risks to physical health, fear, stress and loss also can have an effect on mental health.

Research has shown this time and time again mental health of the emergency services may suffer during large-scale disasters, especially in the event that they know disaster victims, are coping with serious injuries, or feel helpless. All of those conditions were present when the floods of Hurricane Helene swept away dozens of individuals and plenty of more were missing.

Stigma, costs and a scarcity of mental health care providers also contribute ongoing mental health challenges after disasters. Research shows that a big percentage of People face psychological problems after disasters.

According to the Substance Abuse and Mental Health Services Administration, two federal grant programs provide post-disaster mental health support to individuals and communities. However, one in all these sources of financing ends after 60 days, the opposite after a yr. Given Western North Carolina's decades-long recovery from Hurricane Helene, I consider these programs are woefully inadequate to satisfy the mental health needs of the storm-affected population.

Flooded regions need long-term help

Western North Carolina is usually called a “climate haven” due to its cooler summers. And Asheville specifically has turn into a preferred spot for retirees and latest residents. Current data shows the town has that second highest migration rate within the country.

But Helene and other extreme storms which have swept the region highlight their vulnerability.

In the wake of the flooding, each newcomers unfamiliar with the risks and longtime residents will struggle with ongoing health problems as they fight to scrub up and rebuild from the storm. Even as attention shifts to other disasters, people on this region will proceed to need assistance recovering for months and years.

Constellation, an energy company that supplies electricity and natural gas to its customers 16 states and Washingtonannounced on September 20, 2024 that it planned to achieve this Restore unit 1 and reboot at Three Mile Island, a nuclear power plant near Middletown, Pennsylvania that was decommissioned in 2019. Microsoft has signed a 20-year contract to buy electricity generated by the plant to offset the facility needs of its data centers within the Mid-Atlantic region.

Three Mile Island was the positioning of 1 in 1979 partial collapse at reactor block 2 of the plant. The Nuclear Regulatory Commission calls this event “the most serious accident in the operating history of commercial nuclear power plants in the United States,” although only small amounts of radiation were released and no health effects were noted for plant employees or the general public. Block 1 was not affected by the accident. Professor of Nuclear Engineering on the University of Michigan Todd Allen explains what the restart of Unit 1 will entail and why another closed nuclear power plants may additionally be restarted.

What is the story of TMI-1?

Three Mile Island Block 1 is a big nuclear power plant with the capability to generate electricity 837 megawatts Electricity – enough to power around 800,000 homes. Commercial operations began in 1974 and ran until September 2019.

After the Unit 2 accident in 1979, Unit 1 was shut down for six years until the then-operator, Metropolitan Edison, demonstrated to the Nuclear Regulatory Commission that it could operate the reactor safely.

Constellation closed Unit 1 in 2019 though the facility plant's operating license not existed prolonged until 2034 and there have been no operational or issues of safety. At this point, TMI-1 couldn’t compete economically with natural gas-fired power plants because gas had grow to be extremely low-cost.

Pennsylvania also had a policy preference for increasing electricity generation from solar and wind power. The state parliament decided to not reclassify the power as a carbon-free source of electricity would have qualified it for presidency funding.

What is the present condition of the reactor?

The plant has been idle because it was shut down in 2019. The NRC calls this status secure storage or SAFSTOR. The plant is shut down, the uranium fuel is faraway from the reactor, and the plant is maintained in a secure, stable condition. Irradiated fuel is stored in large steel and concrete drums on a physically secured a part of the positioning, called Independent spent fuel storage facility.

In addition to the fuel, other materials within the plant are also radioactive, similar to structural channels that carry cooling water during operation and the massive container that houses the reactor. During the SAFSTOR period, radioactive decay occurs, which reduces the radioactivity of the power and makes it easier to dismantle the power later.

What does Constellation have to do to organize the reactor for restart?

Constellation needs to make sure it has enough fuel and adequately trained personnel. It must even be ensured that the reactor components are still in a condition that permits secure operation.

This requires detailed inspections and mandatory maintenance to make sure all components are functioning properly. In some cases, the corporate may have to put in latest equipment.

The exact work will rely on the outcomes of the inspections, but could also include upgrading or replacing the reactor's major components, similar to the turbine and associated power generator; large transformers that transport electricity from the reactor to the grid; Equipment for cooling the reactor during operation; and systems to manage the plant during startup, shutdown and power generation.

As an analogy, imagine you progress to a city and stop driving your automobile for five years. If you choose to drive again, it is advisable make sure that you might have gas, that your driver's license remains to be valid, and that every one of the vehicle's components are still working properly. To function well it might probably require latest oil, air within the tires, latest filters and other substitute parts.

A nuclear power plant is way more complicated than a automobile, so the variety of checks and inspections will take longer and be costlier. Constellation expects this bring the restored facility online in 2028 at a expected cost of $1.6 billion.

What will the NRC consider when deciding whether to reauthorize the reactor?

The agency must independently confirm that Constellation has sufficient fuel and trained personnel and that the power can operate safely. These controls have to be approved by the Commission before the power could be put into operation.

In my view, Constellation must show that the power is able to operating at the identical level of safety that existed there in September 2019 when the corporate ceased operations.

Do you expect other utilities to try any such remediation of closed reactors?

Constellation isn't the one utility considering restarting a nuclear power plant. Holtec Internationalan energy technology company, bought the decommissioned Palisades nuclear power plant in southwest Michigan in 2022 with the intention of decommissioning it, but then the corporate decided to achieve this Restoration and reopening of the power.

This work is now underway. Recently, the NRC found various components during its first major inspection on the plant, it said required further testing and repair work.

Wolverine Power Cooperativea nonprofit energy provider serving rural communities across Michigan, plans to buy electricity from the restored Palisades Plant with support from the U.S. Department of Agriculture Program to Strengthen Rural America. Holtec receives support for the Palisades restoration from the U.S. Department of Energy and the State of Michigan.

A 3rd company, NextEra Energyis considering a restart Duane Arnold Nuclear Power Plant in Palo, Iowa. And others could follow. A dozen nuclear power plants have closed within the last decade before the top of their licensed period of operation because that they had difficulty competing economically. But with Electricity demand increasesSome of those facilities, particularly those operating data centers and electric vehicles, is also candidates for reopening.

The USA is approaching the top of the one among the most well liked summers since weather records beganAcross the country, heatwaves have pushed peak electricity demand on some days to levels well above seasonal averages.

To ensure they will meet these peaks in demand, grid operators depend on what are often called “peaker plants.” Peaker plants can initiate quickly and comparatively inexpensively, but they typically use more fuel per unit of electricity produced than other kinds of fossil fuel plants.

Because they’re less efficient than other power plants, peaker power plants typically only run during times of high demand. lower than 10% of the 12 months have runoften just for a couple of hours at a time.

However, their higher emissions per unit of electricity produced raise environmental and health concerns. As of 2021, there have been 999 peak load power plants within the USAin all 50 states. About 70% of those plants burned natural gas, the remainder were powered by oil and coal.

To reduce air pollution and combat climate change, the United States is moving away from fossil fuels and increasingly using renewable energy sources corresponding to wind and solar energy. Ironically, climate change is generating more frequent and intense heat wavesMany power systems increasingly depend on peak load power plants to balance fluctuations in renewable energy production. Proposals for construct recent peakers or extend the lifetime of the old have in states like Wisconsin, Massachusetts, Texas And recent York.

My research focuses on the economic and environmental costs and advantages of electricity generationThe energy transition is changing the role of peak load power plants and offering further options for maintaining electricity supply during peak load times.

Balancing the ability supply

For grid operators, a very important feature of an influence plant is whether or not it will possibly produce electricity on demand. Many renewable resources, including wind, solar and certain kinds of hydropower, are often called non-distributable resources because they’re controlled by nature and produce energy when conditions allow. The cost of generating electricity with them is low, so that they are frequently used to their maximum capability.

Power plants that run on fossil fuels or nuclear power are called deliverable resources because they will produce electricity each time it is required. However, their operating costs are higher than those of renewables, mainly because gas, coal, nuclear and oil power plants need to buy fuel to operate.

Some of those power plants – historically people who run on coal or nuclear fuel – are called Baseload power plantsThey generate electricity relatively cheaply, but need time to begin up and reach full power. Intermediate units produce electricity at the next cost for every additional megawatt-hour produced, but can ramp up and down their output more quickly than baseload plants. Peakload plants have the very best costs per megawatt-hour, but can adjust their output in a short time.

In the past, baseload power plants operated all 12 months round, while intermediate power plants adjusted their output to short-term fluctuations in demand. Peakload power plants were used only during rare peak demand periods.

But as utilities add more wind and solar energy to the grid, they’re increasingly using demand-responsive fossil fuel plants to smooth out fluctuations in renewable energy production – for instance, to run air conditioners when the sun goes down but temperatures are still high. This favors plants that may quickly adjust their production levels, even in the event that they are less fuel efficient. The result’s a growing importance of peaker power plants.

Environmental justice hotspots

Electricity generation from fossil fuels within the USA has decreased with major investments in wind and solar energy. But fossil fuel power plants still produce about 60% of US electricity – and these plants emit pollutants that contribute to climate change and worsen local air quality.

Pollution from sulphur dioxide, nitrogen dioxide, particulate matter and ozone is related to Respiratory and cardiovascular diseases and premature deathAlthough air pollution within the United States has declined overall in recent many years, low-income and minority neighborhoods still suffer disproportionately from poor air quality.

A 2022 report estimates that 32 million Americans you reside inside 3 miles of a peak load power plantIn 2024, the U.S. Government Accountability Office reported that historically disadvantaged racial or ethnic communities are statistically more prone to be settled closer than average to peak values.

Other ways to deal with peak demand

How else can supply and demand be balanced? One way is to make use of batteries to store electricity when wind or solar energy is powerful, after which discharge it when demand exceeds supply from conventional sources.

Although the investment costs for batteries are currently high, they’re expected to say no significantly in the approaching many years. In 2023, the United States had a complete of about 15 gigawatts of battery storage capability – the equivalent of 15 large nuclear power plants – and this number could double in 2024.

Another alternative is to expand transmission networks that allow electricity to be sourced from lower-cost plants in distant areas slightly than counting on nearby peak-load power plants. However, the development of recent transmission lines is related to significant Regulatory, permitting and land use challenges.

A 3rd possibility is Demand response programswhere electricity consumers pay higher prices in periods of upper demand. This could help reduce peaks and troughs in demand throughout the day, benefiting more efficient but less flexible baseload power plants which are designed to run 24 hours a day.

However, most consumers currently don’t pay prices that reflect short-term changes in wholesale electricity costsIn addition, it’s uncertain whether private customers would adjust their consumption because of short-term price fluctuations. Technologies corresponding to smart thermostats and energy management apps could help by relieving consumers of the burden of getting to manually adjust their electricity consumption to cost fluctuations.

Finally, power plant owners can put money into technologies to scale back emissions from fossil-fuelled power plants. technologies for combating pollutants are generally lacking because they usually are not used fairly often. Retrofitting older power plants to make them more efficient could also help, as they might produce fewer emissions per unit of electricity.

These investments are costly, so policymakers must weigh the health advantages of reduced air pollution against the investment costs for power plant owners.

Increasing investments in wind and solar energy are Reducing local air pollution from electricity production. But it also shifts production away from thermally efficient baseload units that can’t respond quickly to fluctuations in demand or renewable energy production. I consider it’s increasingly vital to think about policies that incentivize investment in alternatives corresponding to battery storage and transmission infrastructure, in addition to in modernizing power plants to scale back pollution.

A final-minute proposal by California lawmakers to supply some relief for rising electricity bills has probably failed.

Assembly Bill 3121 was pulled from a key Senate committee this afternoon. A source told CalMatters meaning it won't be voted on until the top of the legislative session on Saturday.

The bill's writer, Democrat Cottie Petrie-Norris of Irvine, removed it from the agenda of the Senate Permanent Committee on Energy, Utilities and Communications. Her office didn’t immediately reply to a request for comment.

The bill would have given households a small one-time credit of between $30 and $70. It would have been funded by controversial cuts totaling about $500 million to utility programs that support low-income residents and schools in areas served by Southern California Edison, Pacific Gas & Electric and San Diego Gas & Electric.

For weeks, state leaders and Governor Gavin Newsom's staff have been working on a series of proposals to handle California's dual clean energy problem: meeting requirements for clean, carbon-free electricity and lowering electricity prices, that are amongst the best within the country.

The measure was probably the most controversial in a series of energy measures unveiled earlier this week, with lawmakers and Newsom already significantly scaling back their plans to lower Californians' electricity bills and speed up renewable energy projects.

The Petrie-Norris maneuver got here hours after House Speaker Robert Rivas, a Democrat from Salinas, expressed doubts about whether he would allow any of the measures to be put to a vote this yr.

Rivas said in an announcement, “We agree with Governor Newsom that it is absolutely urgent to get this done.” However, he said he wouldn’t “pass bills that have not been adequately vetted in public hearings. This could have unintended consequences for Californians' wallets.”

Other energy laws that will streamline solar and other renewable energy projects remain in effect to at the present time.

Curious Kids is a show for teenagers of all ages. If you have got an issue you'd like an authority to reply, send it to curiouskidsus@theconversation.com.

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Could we use volcanoes to generate electricity? – Lawrence, age 7, Dublin, California

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Converting glowing lava from an lively volcano into electricity can be dangerous and unreliable. Volcanoes don’t erupt on predictable schedules and lava cools too quickly. But many countries, including the USAhave found ways to make use of volcanic heat to generate electricity.

Geothermal energy is generated by heat generated by natural processes deep contained in the earth. In most areas, this heat only warms rocks and groundwater near the surface. In volcanically lively regions, nevertheless, the warmth is rather more intense. Sometimes it melts rocks, Form magma.

Volcanoes act like giant heat sources that bring magma closer to the Earth's surface. Some of this molten rock may erupt, but much of it stays underground, heating the encircling rock and water. Where heated water rises to the surface, hot springs and geysers that may last for 1000’s of years.

To use this energy to generate electricity, engineers discover areas where magma is near the surface and drill deep wells to the heated rocks and waterThese wells bring steam to the surface, where it’s piped to an influence plant to drive turbines and generate electricity.

After generating electricity, the steam cools down and condenses back into hot water. The water may be used to convert one other liquid with a much lower boiling pointlike for instance butaneto power a second generator. It is then pumped back underground to be heated again.

The earth continuously produces heat, so geothermal energy is a renewable resource. And geothermal power plants produce significantly less pollution, waste and greenhouse gas emissions warm the earth's climate than by burning coal, gas, oil or using nuclear energy.

Geothermal energy sources can last for a long time and even longerUnlike other renewable energy sources comparable to solar and wind, geothermal energy is accessible 24 hours a day, twelve months a yr.

The world's geothermal hotspots

Geothermal energy is already utilized in many places around the globe, especially in regions with strong volcanic activity. For example, just about all of Iceland’s electricity comes from renewable sources, with geothermal delivers about 25%The country lies on quite a few lively volcanoes and is due to this fact a super location for geothermal power plants.

Some US states, including California and Nevadahave geothermal power plants due to their volcanic regions. Other lively geothermal sites, comparable to Yellowstone National Park in Wyoming are protected against development.

Challenges for geothermal energy

Why isn't geothermal energy used as widely as wind or solar energy? First, geothermal power plants should be built near volcanoes or other places where it's unusually hot beneath the surface. These resources aren't all the time situated near big cities or industries that use quite a lot of electricity.

Second, drilling deep wells and constructing power plants may be expensive. The long-term advantages of geothermal energy often exceed the acquisition costs.

Third, in some cases drilling and pumping water under pressure may cause small earthquakes. Scientists and engineers are working to to predict and control this effect.

Despite these challenges, harnessing the earth's natural heat can create a renewable, reliable and clean source of energy. As technology advances, an increasing number of places around the globe will turn to geothermal energy to light people's lives. Volcanoes are paying homage to a big power station deep underground, waiting for use.

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Hey, curious kids! Do you have got an issue you'd like an authority to reply? Ask an adult to send your query to CuriousKidsUS@theconversation.com. Please tell us your name, age and town you reside in.

And since curiosity knows no age limit, adults can take part too. Let us know what interests you. We can't answer every query, but we'll do our greatest.

World News

KIEV, Ukraine (AP) — Russian attacks left greater than 100,000 households in northern Ukraine without electricity and a regional capital cut off from water supplies on Sunday night, Ukrainian authorities reported Saturday. The variety of civilian casualties rose sharply within the embattled east of the country.

The northern region of Sumy, which borders Russia, was plunged into darkness after Russian attacks damaged energy infrastructure late Friday, Ukraine's Energy Ministry said. Hours later, Ukrainian public broadcaster reported that Russian drones had attacked the provincial capital of Sumy, cutting off water supplies by hitting power lines that feed the pumping system.

Russian state agency RIA quoted a neighborhood pro-Kremlin “underground” leader as saying Moscow's forces overnight attacked a factory producing missile ammunition in the town, which had a population of over 256,000 before the war. The report didn’t specify which weapon was used and the claim couldn’t be independently verified. Explosions in the town occurred during an air raid alert early Saturday morning, in accordance with Ukrainian media reports.

In the eastern Donetsk region, Russian artillery shelling killed 11 civilians and wounded 43 on Friday and overnight, the region's governor, Vadym Filashkin, reported on Saturday. Five people died within the town of Selydove, southeast of Pokrovsk, the eastern city that has turn out to be a flashpoint on the front lines. Ukraine's General Staff said on Saturday morning that Ukrainian and Russian forces had clashed 45 times near Pokrovsk the day prior to this.

According to Filashkin, three other people died in Chasiv Yar, the strategically situated town in Donetsk that was reduced to rubble by a months-long Russian attack.

A Ukrainian military spokesman on Thursday to the AP that Ukrainian troops had withdrawn from a neighborhood on the outskirts of Khasiv Yar. The town's elevated position gives it strategic importance, and military analysts say its fall would endanger nearby cities. It could also threaten key Ukrainian supply routes and produce Russia closer to its stated goal of taking your complete Donetsk region.

According to the Ukrainian General Staff, Russian forces carried out six missile attacks and 55 airstrikes across Ukraine on Friday and overnight, killing greater than 70 “Glide bombs” — converted Soviet-era weapons which have caused devastating damage within the country in recent weeks.

In Russia, two civilians were injured when Ukrainian forces shelled a border town within the southern Belgorod region overnight, governor Vyacheslav Gladkov said.

The Russian Defense Ministry said its troops shot down a complete of eight drones over the Kursk and Belgorod regions within the south throughout the night.

In Krasnodar province in Russian-annexed Crimea, local authorities reported damage caused overnight by falling drone debris. Debris sparked a fireplace at an oil depot, set fuel tanks ablaze elsewhere and damaged a cellular phone tower, the reports said. There were no immediate reports of casualties.

According to a top executive at PG&E Corp., California's largest energy provider expects its electricity demand to double by 2040, because of artificial intelligence, electric cars and other efforts to affect larger parts of the economy.

PG&E is capable of handle this surge in demand without significantly expanding its power plant fleet, CEO Patti Poppe said in an interview with Bloomberg Television on Friday. This is since the energy supplier's system isn’t running at full capability.

“Our network is not being used sufficiently today,” she said. “We expanded the network significantly years ago and now we can use it.”

PG&E's grid is currently at around 45 percent capability, and Poppe expects that to rise to as much as 80 percent. While there can be “some new generations,” the CEO said higher use of existing assets is essential to providing more power without increasing costs.

PG&E shares fell 0.9 percent at 10:46 a.m. in New York. The stock is up 1 percent this yr.

A large increase in electricity demand can be expected in other parts of the USA. The head of the electricity grid operator in Texas estimated this week that electricity demand there’ll almost double by 2030. Several US electricity suppliers have also drastically revised their demand forecasts upwards, but unlike PG&E, other firms are planning to construct latest power plants.

Forest fires

Poppe has promised to stop catastrophic wildfires, which drove the utility out of business in 2019 after its facilities sparked a few of the worst fires in California history, killing greater than 100 people and destroying hundreds of homes.

The utility says it has reduced the variety of ignitions on its equipment by 68% since 2017 by installing more weather monitoring stations, strengthening poles, covering and burying power lines, and taking precautionary measures to shut off power during dry and windy weather.

– With support from Josh Saul.

You can find more stories like this on bloomberg.com

©2024 Bloomberg L.P.

The billboards fade in the intense sun. Antony Green does his vocal warm-up exercises. The 2024 Tasmanian election campaign is nearly over and is now as much as the voters.

The five-week campaign was largely unimaginative, but not without notable moments, from wildcard independents to guarantees of the world's largest chocolate fountain.

So what’s the state of play leading as much as Election Day? Which announcements have prevailed and what has been lost within the flood of guarantees? And after all, what would we reasonably forget?

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The key players

Tasmania has five electorates: Bass, Braddon, Clark, Franklin and Lyons. Each of them will elects seven members It returned to the House of Commons for the primary time since 1998, when each electorate was reduced to 5 seats.

Jeremy Rockliff is leader of the Liberal Party (there isn’t any coalition within the south) and has been Prime Minister since April 2022.

He had a rough ride. There have been several cabinet reshuffles and he has been forced to manipulate within the minority since May 2023, when two of his MPs quit the party to take a seat on the crossbench. He called the election to revive his parliamentary majority.

In the alternative camp, Rebecca White is leader of the Labor Party and is hoping to avoid her third election defeat in a row. Like Rockliff, the previous few years haven’t been smooth sailing for White and Labor.

She resigned as party leader following the 2021 election defeat and was replaced by David O'Byrne. However, O'Byrne was forced to quit three weeks later after a… Sexual harassment lawsuit, and White was re-elected as leader. She and Labor struggled to say themselves throughout the election campaign.

Rosalie Woodruff is leader of the Green Party, which has long been the third largest party in Tasmania. Woodruff took over from Cassy O'Connor in July 2023, but is an unknown quantity and has less public visibility than previous Green Party leaders.

This is where things get interesting. This election will see probably the most independents (29) vote in an election in Tasmania in a long time.

Although there are too many to list, listed below are some things to take into accout:

• John Tucker and Lara Alexander (the Liberal MPs leaving in 2023)

• David O'Byrne (former Labor leader)

• Kristie Johnson (a sitting independent MP)

• Sue Hickey (former Lord Mayor of Hobart, former Liberal then Independent MP).

Finally, there may be the Jacqui Lambie Network (JLN), which is fielding candidates for all seats except Clark. The JLN made the controversial decision to not publish policies and as a substitute portray themselves as a bunch of down-to-earth individuals who need to “keep the bastards honest.”

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Which issues dominated the election campaign?

Polls throughout the election campaign showed that Main concern For most Tasmanian voters, healthcare and price of living were critical. Labor and Liberal, amongst others, have proposed several measures targeting these areas.

Millions of dollars were promised with the keenness of a reduction carpet warehouse closing a sale – but this not necessarily helped win votes. In fact, this type of political bonanza can confuse and overwhelm voters.

In a super world, each of us would determine our selection by comparing the complete policies of every candidate or party and finding which most closely fits our own values. But who has time for that?

In reality, people normally vote based on a mix of other things, including specific, controversial topics, eye-catching headlines and the candidates' personalities. This is how democracies work everywhere in the world.

So what were the things that might need modified votes during this campaign?

The long-standing divide in Tasmanian society between environmental protection and economic development stays, meaning voters can select who to vote for depending on each party's stance on, for instance, salmon farming or the proposed latest AFL stadium takes.

Some influential topics are hyperlocal, akin to a long-closed topic Community pool.

During the campaign there have been a couple of “headline makers” who should stick within the minds of undecided voters. The best example of that is the Liberals' promise to construct the biggest on the earth Chocolate fountain if chosen. Work refrain “Tasmanian prices for Tasmanian electricity” also play a task.

The final thing that may influence voters is what Dennis Denuto would call “the mood” across the candidates.

Rockliff has benefited from the perception that he’s a “nice guy” under difficult circumstances as White struggled to separate her brand from the O'Byrne controversy and previous Labor factional struggles.

The Greens have been knocking hard on the door, especially within the states northwest. This personal contact can enable you attract a brand new candidate.

The JLN has relied heavily on the forceful “fighter” persona of its namesake. Each independent has tried to construct their very own brand, normally by specializing in a selected issue or strengthening their ability to arise to the main parties. It's hard to say how successful these efforts have been – the proof might be within the votes.

The low points

There were some low points throughout the campaign. First prize goes to the fake JLN page arrange from the Liberal Party. This particular racket doesn’t violate the suitable to vote, however it definitely violates the spirit of democracy. It may not have the specified effect: the sort of negative campaigning can drive voters away from the party in query.

Another disappointing aspect of the campaign was that Rockliff and White repeatedly ruled out offering ministries or policy concessions to independents, the JLN or the Greens in return for his or her support. This is as a consequence of the perceived failure of previous division of power Offers in Tasmania.

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Rockliff even suggested that MPs who quit their party should achieve this kicked out of Parliament and replaced by a candidate from the identical party – a ploy that ignores that our political system relies on candidates being elected to represent a constituency reasonably than a celebration.

When the votes are counted, Rockliff and White may regret their strident rhetoric. It is most unlikely that either party will win the 18 seats needed to form a majority government.