Uncategorized
- Physics
50 years ago, scientists poked holes in the existence of polywater
In 1971, scientists were casting doubt on an anomalous form of water. Fifty years later, water’s odd properties are still mysterious.
- Psychology
The COVID-19 pandemic made U.S. college students’ mental health even worse
College students struggled with mental health problems before the pandemic. Now, some vulnerable students are even more at risk.
- Earth
Space station detectors found the source of weird ‘blue jet’ lightning
The origins of an enigmatic type of lightning in the upper atmosphere has been traced to a 10-microsecond flash of bright blue light.
- Archaeology
The oldest known abrading tool was used around 350,000 years ago
A flat-ended rock found in an Israeli cave marks an early technological shift by human ancestors to make stone tools for grinding rather than cutting.
