Why can’t we walk through walls if atoms are mostly empty space?
Most of an atom is empty space, so why does some matter feel solid? Two physics principles explain why.
Category: Science
FDA recalls more bagged, frozen shrimp over possible radioactive cesium contamination
The FDA is warning consumers not to eat certain frozen shrimp products sold at Walmart after other products from the same company tested positive for
SpaceX postpones 10th test launch of massive Starship rocket
SpaceX wants to put the two-stage rocket’s massive booster through its paces. On Sunday, it postponed the launch “to troubleshoot an issue with ground systems.”
What is the world’s slowest animal?
What does survival look like for animals who live in the slow lane?
Japanese power breakthrough could be ‘step toward a fully wireless society’
Japanese researchers employed machine learning to develop a wireless power transfer system that remains stable under any load.
Diagnostic dilemma: A man’s preference for ‘soft’ bacon may have given him brain worms
A man in the U.S. reported worsening migraine symptoms. It turned out that a pork tapeworm had invaded his brain.
‘Minibrains’ reveal secrets of how key brain cells form in the womb
Miniature models of the brain have revealed a “previously unappreciated” role of microglia, a type of cell found within the organ. The finding could help
Will there be a La Niña this fall? Here’s what forecasters predict and what it means for the weather
NOAA forecasts suggest we could experience La Niña conditions in the fall and early winter. However, this potential La Niña spell is unlikely to break
China is dunking data centers into the ocean to keep them cool
China is pulling ahead of the rest of the world in sinking data centers that power AI into the ocean as an alternate way to
The U.S. wants to mine the deep sea for rare minerals. Science shows what’s at stake
Some countries, including the U.S., want to mine the seafloor for rare earth elements used in smartphones and electric cars. But other nations are concerned
Whoop MG review — A screenless fitness tracker for performance geeks
The Whoop MG would be the best sleep and recovery tracker on the market if it were not for its flawed hardware and performance hiccups.
NASA’s Perseverance rover spies mysterious ‘helmet’ on Mars
A medieval-looking “helmet” rock spotted by NASA’s Perseverance rover adds to Mars’ gallery of odd shapes.
Longest canyon in the solar system reveals new secrets — Space photo of the week
NASA’s Mars Reconnaissance Orbiter recently photographed Candor Chasma in Mars’ Valles Marineris, the largest canyon in the entire solar system.
Anatomy of a Space Shuttle
This illustration shows the parts of a space shuttle orbiter. About the same size and weight as a DC-9 aircraft, the orbiter contains the pressurized