Archive | Physics

LIGO_2

Scientists detect gravitational waves for the second time

About a hundred years ago, in his theory of general relativity Albert Einstein predicted the existence of gravitational waves, “ripples” in the fabric of space and time as a result of the universe’s violent and energetic processes, like a collision and merger of black holes or a collapse of supernova. Gravitational waves are difficult to […]

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wormh_s

Magnetic wormhole connecting two regions of space created by Spanish physicists




Physicists at the Universitat Autonoma de Barcelona have designed and created in the laboratory the first experimental wormhole that can connect two regions of space magnetically. The tunnel transfers the magnetic field from one point to the other while keeping it undetectable. The researchers used metamaterials and metasurfaces to build the tunnel, so that the […]




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2d_coduct

Physicists map conductivity change in transition from 3 to 2 dimensions




Scientists from the Moscow Institute Of Physics And Technology and Tulane University (New Orleans) have for the first time described the behavior of electrons in a previously unstudied analogue of graphene, two-dimensional niobium telluride, and, in the process, uncovered the nature of two-dimensionality effects on conducting properties. Their findings will help pave the way for […]




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walk_exo

Spring-assisted exoskeleton beats evolution




It’s taken millions of years for evolution to perfect how we walk, but research published in the journal Nature shows that humans can get better efficiency – around 7 percent – using an unpowered exoskeleton to modify the structure of their ankles. To gain an advantage over nature, North Carolina State University and Carnegie Mellon […]




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light_wave_part2

Image captures light as both a particle and a wave




Quantum mechanics tells us that light can behave simultaneously as a particle or a wave, but it’s only possible to see one of these attributes at any given moment. Even though a variety of experiments have successfully observed both behaviors of light, they have never been able to observe both at the same time. Now, […]




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galactic_plane

Dark matter could be the wild card in extinction events




Our planet’s long path around and through the Milky Way means that dark matter could be the ultimate wild card in our ability to predict asteroid strikes, and scientists are now speculating that dark matter could also be affecting the Earth’s core, potentially leading to major volcanic events. In a new paper in Monthly Notices […]




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plasma_accel

Table-top particle accelerator sets world record




Using a small, inches-long device, researchers have accelerated subatomic particles to the highest energies ever recorded from a compact particle accelerator. With further development, the Berkeley Lab researchers believe they can shrink traditional, miles-long accelerators to machines that can fit on a table. The researchers sped up the electrons inside a nine-centimeter (4 inch) long […]




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