Science

6月25日, 2023

This Is What Antarctica Looks Like Beneath the Ice

The ice caps are melting. Sea levels will rise. Climate change is reshaping the Earth. But what would an iceless world look like? NASA has an idea. In 2013, NASA created Bedmap2, a detailed topographical model—or suite of gridded products—showing the bedrock landscape underneath icy Antarctica, as well as sea elevation. Through radar technology and detailed data collection of 25 million measurements, Bedmap2 provides insight into a changing world.

bob手机在线登陆

">
June 16, 2023

Five Planets Will Parade the Night Sky This Weekend in a Rare Planetary Alignment

A marvelous astronomical event is taking place this weekend. Around sunrise on Saturday, June 17, a planetary parade featuring five planets will decorate the skies. Known by astronomers as planetary alignment, this phenomenon occurs when planets are located on one side of the Sun at the same time. This time, the planets stargazers will get to see are Mercury, Jupiter, Saturn, Uranus, and Neptune.

bob手机在线登陆

">
June 5, 2023

Scientists Capture World’s Very First X-Ray of a Single Atom

For the average person, X-ray specs might still be the stuff of superhero novels; but for scientists who regularly work with X-rays, the technology just took a huge leap forward. X-rays are electromagnetic radiation with higher energy “content” than our visible light. They pass through objects which, depending on the material, absorb different amounts of radiation. This produces data often presented as images, for example, of broken bones.

bob手机在线登陆

">
May 19, 2023

Can You Smell When Rain Is Coming? Science Says Some People Can and Some Can’t

Are you one of those people who can leave the house on a summer day and swear that you smell rain in the air? The world is firmly divided into two camps—those whose nose can detect when rain is on the way and those who think that capability is utter nonsense. While not everyone can smell the rain before it begins, there is actually scientific evidence that some people do possess this capability.

bob手机在线登陆

我的现代了

Celebrating creativity and promoting a positive culture by spotlighting the best sides of humanity—from the lighthearted and fun to the thought-provoking and enlightening.

Baidu
map