Tag Archives: black

Better Black Tea

Physicists from the Department of Health Science and Technology in the Institute of Food Nutrition and Health at the ETH Zürich have applied the science of rheology to the seemingly quaint purpose of improving the quality of a cup of black tea. Black tea brewed in tap water; whereas tea …

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The Milky Way Core

The current scientific consensus is that a supermassive black hole lurks at the center of our galaxy. We know that’s true in other galaxies — there’s even photographic evidence of a black hole in M87. However, a new study suggests that the Milky Way might not have a black hole. …

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The Milky Way Dark Matter

The current scientific consensus is that a supermassive black hole lurks at the center of our galaxy. We know that’s true in other galaxies — there’s even photographic evidence of a black hole in M87. However, a new study suggests that the Milky Way might not have a black hole. …

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Gravitational Waves

Black holes can be perplexing and counterintuitive because they exist at the very edge of our current understanding of physics. Even as they’re warping the fabric of the universe, black holes have to obey certain rules. For the first time, we have direct confirmation of a vitally important property of …

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Spinning Black Holes

    (Credit: Robin Dienel/Carnegie Institution for Science)We are constantly learning new things about the universe, but the more we know, the clearer it becomes that we’re missing pieces of the puzzle. The possible existence of dark matter is one of the more vexing missing pieces, but a team from …

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The First Black Hole

  The general idea of a stellar object with such intense gravity that even light cannot escape dates back to the late 18th century. However, it wasn’t until Einstein’s contributions in the early 20th century that we had the necessary theoretical underpinnings to go looking for such an object. Cygnus …

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Extreme Black Holes

Gravitational-wave detectors can be used to measure gravitational-field hair of extreme black holes, according to a paper published in the journal Physical Review D. Extreme Kerr black holes have gravitational hair that can be measured at finite distances and violates the uniqueness theorems. Image credit: Sci-News.com / Zdeněk Bardon / …

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Physicists Extract Energy

Spinning black holes store rotational energy that can be extracted; when a black hole is immersed in an externally supplied magnetic field, reconnection of magnetic field lines within the ergosphere can generate negative energy particles that fall into the black hole event horizon while the other accelerated particles escape stealing …

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