ScienceDaily: Strange Science News |
- Compressive fluctuations heat ions in space plasma
- The 'crazy beast' that lived among the dinosaurs
- Can white dwarfs help solve the cosmological lithium problem?
- Scientists create entangled photons 100 times more efficiently than previously possible
- Tiny quantum computer solves real optimization problem
- Unique prediction of 'modified gravity' challenges dark matter
| Compressive fluctuations heat ions in space plasma Posted: 18 Dec 2020 06:44 AM PST New simulations carried out in part on the ATERUI II supercomputer in Japan have found that the reason ions exist at higher temperatures than electrons in space plasma is because they are better able to absorb energy from compressive turbulent fluctuations in the plasma. These finding have important implications for understanding observations of various astronomical objects such as the images of the accretion disk and shadow of the M87 supermassive black hole. |
| The 'crazy beast' that lived among the dinosaurs Posted: 18 Dec 2020 05:41 AM PST New research describes a bizarre 66 million-year-old mammal that provides profound new insights into the evolutionary history of mammals from the southern supercontinent Gondwana - recognized today as Africa, South America, Australia, Antarctica, the Indian subcontinent, and the Arabian Peninsula. |
| Can white dwarfs help solve the cosmological lithium problem? Posted: 17 Dec 2020 11:52 AM PST For the first time, lithium has been identified and measured in the atmosphere of a white dwarf. The finding provides clues for what's become of the lithium expected from the Big Bang. |
| Scientists create entangled photons 100 times more efficiently than previously possible Posted: 17 Dec 2020 10:54 AM PST Super-fast quantum computers and communication devices could revolutionize countless aspects of our lives -- but first, researchers need a fast, efficient source of the entangled pairs of photons such systems use to transmit and manipulate information. Researchers have done just that, not only creating a chip-based photon source 100 times more efficient that previously possible, but bringing massive quantum device integration within reach. |
| Tiny quantum computer solves real optimization problem Posted: 17 Dec 2020 06:04 AM PST Quantum computers have already managed to surpass ordinary computers in solving certain tasks - unfortunately, totally useless ones. The next milestone is to get them to do useful things. Researchers have now shown that they can solve a small part of a real logistics problem with their small, but well-functioning quantum computer. |
| Unique prediction of 'modified gravity' challenges dark matter Posted: 16 Dec 2020 12:51 PM PST An international group of scientists has published research contending that modified Newtonian dynamics (MOND) -- a rival idea to the popular dark matter hypothesis -- more accurately predicts a galactic phenomenon that appears to defy the classic rules of gravity. |
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