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Category: physics – Page 97

Most massive stellar black hole in the Milky Way discovered ‘extremely close’ to Earth

I found this on NewsBreak: Most massive stellar black hole in the Milky Way discovered ‘extremely close’ to Earth.

Astronomers have found the most massive stellar-mass black hole ever discovered in our galaxy — and it’s lurking “extremely close” to Earth, according to new research.

The black hole, named Gaia BH3, is 33 times more massive than our sun. Cygnus X-1, the next-biggest stellar black hole known in our galaxy, weighs only 21 solar masses. The newfound black hole is located roughly 2,000 light-years away in the constellation Aquila, making it the second-closest known black hole to Earth.

The researchers published their findings April 16 in the journal Astronomy and Astrophysics.

Scientists make breakthrough with advanced technology generating water from thin air — and it could save millions of lives

I found this on NewsBreak.

Researchers in China have reportedly developed a new technology similar to hydropanels for harvesting water out of thin air that is powered by energy from the sun. The device could be especially useful in dry, arid areas where water — but not sunlight — is hard to come by.

The findings from the research team from Shanghai Jiao Tong University in China were published in the scientific journal Applied Physics Reviews.

“This atmospheric water harvesting technology can be used to increase the daily water supply needs, such as household drinking water, industrial water, and water for personal hygiene,” said Ruzhu Wang, one of the study’s authors.

Warp Drives: New Simulations

Learn more from a science course on Brilliant! First 30 days are free and 20% off the annual premium subscription when you use our link ➜ https://brilliant.org/sabine.

Hyperjumps, wormholes, and warp drives sound like science fiction, but they’re actually based on real science! Though I believe out of the three, warp drives are the most plausible. The math seems to agree. Today I want to tell you about a new way of analysing and visualizing warp drives.

Code: https://github.com/pbbp0904/WarpFactory.

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#science #sciencenews #warpdrives #physics

Physicists solve puzzle about ancient galaxy found by Webb telescope

Last September, the James Webb Space Telescope, or JWST, discovered JWST-ER1g, a massive ancient galaxy that formed when the universe was just a quarter of its current age. Surprisingly, an Einstein ring is associated with this galaxy. That’s because JWST-ER1g acts as a lens and bends light from a distant source, which then appears as a ring—a phenomenon called strong gravitational lensing, predicted in Einstein’s theory of general relativity.

Video: Largest 3D map of the universe reveals hints of new physics

Astronomers have produced the largest 3D map of the universe, which can be explored in an interactive VR video. In the process, they’ve uncovered some tantalizing hints that our understanding of physics, including the ultimate fate of the cosmos, could be wrong.

The Dark Energy Spectroscopic Instrument (DESI) is a huge international project to map out the universe in three dimensions, which began collecting data in 2021. This early version of the map only includes data collected during the first year – 5.7 million galaxies and quasars out of the planned goal of 40 million. This data allows the scientists to peer as far as 11 billion light-years into deep space and time, providing a glimpse into the very early universe with an unprecedented precision of less than 1%.

With a view that zoomed-out, the cosmos resembles a colossal web, made up of bright strands of galaxies separated by unimaginably empty voids. If you feel up for an existential crisis, check out this VR fly-through video and remember that each of these blurry blobs of light is an entire galaxy, each containing millions of stars and billions of planets.

Lee Smolin — Are the Laws of Nature Always Constant?

The laws of nature or physics are assumed to be everywhere the same, on the far side of the universe as sure as on the far side of your house. Otherwise science itself could not succeed. But are these laws equally constant across time? Might the deep laws of physics change over eons of time? The implications would be profound.

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Lee Smolin is a theoretical physicist, a researcher at the Perimeter Institute for Theoretical Physics, and an adjunct professor of physics at the University of Waterloo.

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The proton engine Einstein predicted, created for the first time: challenges the laws of the universe and makes cars sustainable

Do you know what they’ve discovered? This is the proton engine that Einstein predicted decades ago and that, for the first time, they’ve managed to materialize. The best part? It challenges even the laws of physics and the universe, and it’s going to decarbonize transportation.

Nuclear fusion has long been a sought-after but elusive goal for science. It involves joining atomic nuclei to release energy, the same process that occurs in the Sun and other stars. In fact, it’s a process similar to what we saw two weeks ago with the plasma engine.

Unlike nuclear fission used in current nuclear power plants—which, remember, we are highly critical of due to its lack of being an eco-friendly or renewable option—fusion offers the promise of a virtually inexhaustible and clean energy source.

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