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Category: space – Page 338

Floating Frogs

Year 1997 Basically this detailed the use of magnetism to levitate frogs.

When pigs fly? That could be sooner than you think. A group of researchers in the Netherlands and in England has made a frog levitate in a magnetic field. Although the feat might seem no more than a curiosity, researchers say that the floating amphibians may lead the way to a cheap alternative to space-based science experiments.

Many materials are diamagnetic—that is, when placed near a magnet, their atoms fight the magnetic field, and the object tries to scoot away. If such a material is placed in a strong enough magnetic field, it levitates. Superconductors, for example, are perfect diamagnets and can levitate over even weak magnets, which is why levitating trains like those in Japan can fly over the tracks. Organic material like living cells is very weakly diamagnetic, says J. C. Maan, a physicist at the University of Nijmegen in the Netherlands. So he and colleagues employed a very strong magnet (chiefly used for crystallography experiments) to float the frog. It took 16 teslas—a very powerful field indeed—to lift the confused amphibian off the ground.

“It’s a little surprising how easy it is to do this,” says James Brooks, a physicist at the National High Magnetic Field Laboratory in Tallahassee, Florida. “It’s not incredibly exotic equipment. Any scientist who is awake will ask ‘What can I do with this?’” Brooks notes that the magnetic fields might provide a way to study materials in milligravity—without sending them into space—because the levitating object is in a net zero field. Researchers could study the effects of microgravity on crystal growth and also on the growth and development of living cells, without costly space missions.

South Korea Maps Out Plan to Become Major Space Player by 2045

South Korea’s giant leap into space started with a small step on the internet.

With treaties banning certain tech transfers, South Korea’s rocket scientists turned to a search service to find an engine they could mimic as the country embarked on an ambitious plan to build an indigenous space program. The nation launched its first home-grown rocket called Nuri in October 2021.

Tesla Delivers FATAL BLOW As Analysts RAISE Price Targets

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New ‘camera’ with shutter speed of 1 trillionth of a second sees through dynamic disorder of atoms

Researchers are coming to understand that the best performing materials in sustainable energy applications, such as converting sunlight or waste heat to electricity, often use collective fluctuations of clusters of atoms within a much larger structure. This process is often referred to as “dynamic disorder.”

Understanding dynamic disorder in materials could lead to more energy-efficient thermoelectric devices, such as solid-state refrigerators and , and also to better recovery of useful energy from , such as car exhausts and power station exhausts, by converting it directly to electricity. A was able to take heat from radioactive plutonium and convert it to electricity to power the Mars Rover when there was not enough sunlight.

When materials function inside an operating device, they can behave as if they are alive and dancing—parts of the material respond and change in amazing and unexpected ways. This dynamic disorder is difficult to study because the clusters are not only so small and disordered, but they also fluctuate in time. In addition, there is “boring” non-fluctuating disorder in materials that researchers aren’t interested in because the disorder doesn’t improve properties. Until now, it has been impossible to see the relevant dynamic disorder from the background of less relevant static disorder.

This Is What the End of the Universe Will Look Like, According to a Cosmologist

End of the universe would look like?

It’s difficult to speak of the far future of the universe with any level of precision, but we can make rough estimates. Our cosmos is currently 13.77 billion years old, and galaxies throughout the universe will continue making new stars for many years to come. But eventually—roughly one trillion years from now—the last star will be born.

That star will likely be a small red dwarf, barely a fraction of our sun’s mass. Red dwarf stars live fantastically long lives, gently sipping on hydrogen to power a slow but steady fusion reaction. But eventually, all stars, including the red dwarfs, will come to an end. In roughly 100 trillion years, the last light will go out.

Florida startup raises $5 million toward building lunar data centers

“Data is the greatest currency created by the human race”.

Cloud computing startup Lonestar Data Holdings announced the results of its latest $5 million funding round, which will help it develop its technology for storing data on the lunar surface.

New lunar data centers will store humanity’s ‘greatest currency.’

LoneStar.

The Florida-based company aims to build lunar data centers on the Moon to help combat the environmental impact of large server centers on Earth. It could also help NASA in its bid to build a permanent colony on the Moon with its upcoming crewed Artemis missions.

Scientists Have Finally Discovered Massless Particles, And They Could Revolutionize Electronics

After 85 years of searching, researchers have confirmed the existence of a massless particle called the Weyl fermion for the first time ever. With the unique ability to behave as both matter and anti-matter inside a crystal, this strange particle can create electrons that have no mass.

The discovery is huge, not just because we finally have proof that these elusive particles exist, but because it paves the way for far more efficient electronics, and new types of quantum computing. “Weyl fermions could be used to solve the traffic jams that you get with electrons in electronics — they can move in a much more efficient, ordered way than electrons,” lead researcher and physicist M. Zahid Hasan from Princeton University in the US told Anthony Cuthbertson over at IBTimes. “They could lead to a new type of electronics we call ‘Weyltronics’.”

So what exactly is a Weyl fermion? Although we’re often taught in high school science that the Universe is made up of atoms, from a particle physics point of view, everything is actually made up of fermions and bosons. Put very simply, fermions are the building blocks that make up all matter, such as electrons, and bosons are the things that carry force, such as photons.