China heat wave: It's so hot, manhole covers cook food
The heat wave — the worst in at least 140 years in some parts — has left dozens of people dead and pushed thermometers above 40 degrees C (104 F) in at least 40 cities and counties, mostly in the south and east. Authorities for the first time have ...
At What Temperature Does Water Freeze?
0 degrees Celsius, 273.15 Kelvin. That’s not always the case, though. Scientists have found liquid water as cold as -40 degrees F in clouds and even cooled water down to -42 degrees F in the lab. How low could they go? That turns out to be a tricky ...
This Is What -40°F Feels Like
Not in 40 degrees below zero. At this temperature, you feel the cold in your lung-tubes. You feel it in the air sacs. You feel it touching your blood. It's hard to take deep breaths of air this cold without reflexively coughing. It doesn't take long in ...
Supercool: Water doesn't have to freeze until -48 C (-55 F)
But the property of water that "is most fascinating is that you can cool it down well below 32 degrees Fahrenheit [zero Celsius] and it still remains a liquid," says Molinero. Liquid water as cold as minus 40 C (minus 40 F) has been found in clouds.
What Is the Greenhouse Effect?
The moon, which has almost no atmosphere, is about minus 243 degrees F (minus 153 degrees C) on its dark side ... Atmospheric CO 2 levels have increased by more than 40 percent since the beginning of the Industrial Revolution, from about 280 parts per ...