Daily Shaarli

All links of one day in a single page.

September 14, 2024

Einstein’s Theories Come Alive: Cold Atoms Shed Light on Gravitational Waves
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Researchers have demonstrated that cold atoms can be used to simulate gravitational waves in a laboratory setting. When two black holes collide, they send ripples through space and time, much like waves spreading across a pond. These ripples, known as gravitational waves, were first predicted by Ei

Gravity study gives insights into hidden features beneath lost ocean of Mars and rising Olympus Mons
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Studies of gravity variations at Mars have revealed dense, large-scale structures hidden beneath the sediment layers of a lost ocean. The analysis, which combines models and data from multiple missions, also shows that active processes in the Martian mantle may be giving a boost to the largest volcano in the solar system, Olympus Mons.

"These dense structures could be volcanic in origin or could be compacted material due to ancient impacts. There are around 20 features of varying sizes that we have identified dotted around the area surrounding the north polar cap—one of which resembles the shape of a dog

Although volcanoes are very dense, the Tharsis area is much higher than the average surface of Mars, and is ringed by a region of comparatively weak gravity. This gravity anomaly is hard to explain by looking at differences in the Martian crust and upper mantle alone. The study by Dr. Root and his team suggests that a light mass around 1750 kilometers across and at a depth of 1100 kilometers is giving the entire Tharsis region a boost upwards. This could be explained by huge plume of lava, deep within the Martian interior, traveling up towards the surface.

New 2D State of Matter, Bose Glass, Could Propel Physics Forward
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Scientists investigated a new two-dimensional form of matter known as Bose glass, which could help physicists study a concept known as many-body localization.

[2203.14465] STaR: Bootstrapping Reasoning With Reasoning

Generating step-by-step "chain-of-thought" rationales improves language model performance on complex reasoning tasks like mathematics or commonsense question-answering.

Ohio Wildlife Officials Give Context for Photo of Man Holding 2 Geese
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A viral pic of an Ohio guy lugging around 2 geese is blowing up after Donald Trump’s bizarre pet-munching Haitian immigrant claims ... but we're told the photo’s just being twisted to fit the former prez's narrative, and what's actually going on is far less dramatic.

Scientists Researching Dark Matter May Have Found Evidence Of A New Type Of Particle » TwistedSifter
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Discovering a new type of particle is always exciting. 

Witness Statements Reveal Alarming 'Drone' Incursions Over Langley Air Force Base As Dronebusters Failed to Intercept Objects — Liberation Times | Reimagining Old News
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Liberation Times has obtained twenty-two witness statements and an incident report through a Freedom of Information Act request, following December 2023 ‘drone’ incursions reported over Langley Air Force Base, Virginia.