Thursday, 9 February, 2012

What happens when people throw boiling water in the air on a cold day? You can watch videos on the web, but this is a great experiment to try at home, if you do it carefully and don’t burn yourself! On a day with very cold, dry air, throw a cup of boiling water into [...]

What is the dewpoint temperature? Dew on evergreens, by Michael Theberge at NOAA Think of a morning when you walked on a grass lawn or through a field. Did your shoes get wet? If yes, that is because the grass was wet with dew. The dewpoint temperature is the temperature to which the air must [...]

The external color does not significantly affect how much the inside of a car heats up in the sun, says Sanford Klein, director of the UW-Madison Solar Energy Laboratory and professor of mechanical engineering. Cars warm up in the sun due to the greenhouse effect: Sunlight passing through the windows into the car is mostly [...]

How do dragonflies fly? How do bats catch insects hidden behind leaves? How do you make a temperature of 2 billion degrees? Why would anyone care?

How do current conditions compare to past predictions of the effects of global warming? Are living on a warming planet?

Global warming, greenhouse effect, rising temperatures and temperature anomalies. Early evidence for the coming storm.