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4 hours ago · The brightest-of-all-time gamma ray burst, which was quickly dubbed the BOAT, was discovered by NASA's Fermi Gamma-ray Space Telescope in October 2022 and was heralded and heavily studied by scientists. Its data, scientists say, shows the evidence of the energy peak, or "jet." NASA's Fermi Finds Novel Feature in BOAT Gamma-Ray Burst.
1 day ago · Archimedes. Archimedes of Syracuse [a] ( / ˌɑːrkɪˈmiːdiːz / AR-kim-EE-deez; [2] c. 287 – c. 212 BC) was an Ancient Greek mathematician, physicist, engineer, astronomer, and inventor from the ancient city of Syracuse in Sicily. [3] Although few details of his life are known, he is regarded as one of the leading scientists in classical ...
2 days ago · The heat death of the universe (also known as the Big Chill or Big Freeze) [1] [2] is a hypothesis on the ultimate fate of the universe, which suggests the universe will evolve to a state of no thermodynamic free energy, and will therefore be unable to sustain processes that increase entropy.
1 day ago · Work on the project ceased in 1990 after Bull was assassinated, perhaps by the Mossad. ... In a latter-day tactic reminiscent of the heat ray perhaps devised by Archimedes in ancient times, Union ...
4 days ago · Ultra-high temperature ceramics (UHTCs) offer great potential for applications in extreme service environments, such as hypersonic vehicles, rockets and re-entry spacecraft. However, the severe ablation caused by high-speed heat flow scouring and high-temperature oxidation limits the engineering application of UHTCs. In this work, we report a novel high-entropy UHTC (Ti0.2Zr0.2V0.2Nb0.2Cr0.2 ...
1 day ago · Vice President Harris has the opportunity to try and win over a significant number of voters who now say they are undecided, according to a new NPR poll. The poll finds Harris and Trump are statistically tied, but 1 in 5 independents now say they are undecided — up from 4% a week ago This makes the next few weeks vital for Harris as she ...
2 days ago · Heat transfer measurements with alumina-silica particles (CARBOBEAD CP 40/100 with Sauter mean diameter of 260 µm) demonstrate that low superficial gas velocities as low as 125% of the minimum ...
