Have you ever considered what the world would look like without waste? A world free from garbage dumps, landfills and pollution? For some people, this may feel like a pipe dream given the era of consumerism and throwaway products that we live in. For others, there is great ambition and hope as the world is starting to respond to the global rise in waste, offering possible ways to address this challenge.
Places where life can thrive vary widely on planet Earth. Scientists find the greatest diversity in rainforests with abundant water and mild year-round temperatures.
In contrast to Earth, somewhere like Mars seems like a bleak wasteland. With an atmosphere that’s about 100 times thinner than Earth’s, the planet surface can’t hold in heat well. A summer day at the Martian equator might get up to 20℃ at noon
生命可能在哪些环境下生存？ Continue reading »
A car drives along an empty stretch of highway late one night in the mountains of New Hampshire, USA. Out of nowhere, a bright light appears. Could it be a falling star? It is September 19, 1961, and Betty and Barney Hill are on their way home from vacation in Montréal, Canada. Strangely, the bright light seems to follow them. Then the car starts to vibrate and the Hills hear strange buzzing and beeping sounds. A feeling of drowsiness washes over them.
On a winter morning in New York City in 2017, workers tossed a duct- taped box into a garbage truck. When the truck crushed the box, it exploded. The quick-thinking workers stopped the compactor, retrieved the burning box, and tossed it in a puddle, putting out the fire.
废旧电器的归宿废旧电器的归宿——我们该如何处理那些“危险”的电子垃圾？废旧电器的归宿 Continue reading »
King Tutankhamun only ruled ancient Egypt for a few short years before dying as a teenager. His mummy was discovered in a tomb filled with gold and jewels. But what killed him? He had been sickly throughout his whole life and had a broken leg when he died. But scientists found traces of a terrible disease that likely ended his life. That disease is called malaria.
“Invasion, invasion!” A chemical siren blares. We Scouts all sense its urgency. An enemy has breached the gates and launched an attack on our vast world of InMi.
科幻小说:InMi 世界的入侵者 Continue reading »
Etiquette provides basic rules for how we interact with other people. And good manners help us make a good impression. Two ver successful flms exemplify the stor of how learning manners changes a person. One is the flmMy Fair Lady, which won the Academy Award for Best Picture in 1964. It is set in early twentieth-centur England.
Social Etiquette: One of the Arts for Building Successful Relationships Continue reading »
Welcome to the Regeneron International Science and Engineering Fair (ISEF), the world’s largest science competition for high school students. Out of the tens of millions of students who enter science fairs around the world each year, just 1,800 qualify to participate in this one.
How to stand out in a science competition Continue reading »
Zip! Zing! Right now, teeny tiny paricles are pelting your body. Every second, one hundred trillion of them zoom through you. But they don’t hur. In fact, they usually don’t disturb even a single atom or molecule on the way through. These paricles can pass through all of planet Earh without hitting anything!
Catching Ghost Particles: The Story of Neutrinos Continue reading »
