Multiple discovery is a concept of the evolution of scientific thinking as a social development. It highlights how advances in science come from original insight, and result from social processes.
There are small hand-held units that can put out smaller fires by using sound rather than chemicals.
Do your ice cubes always come out cloudy with bubbles in the center? Here's how to fix that.
It's a gas! Air consists of nitrogen and oxygen and lots of empty space.
Have you ever been in a crowded elevator and gotten anxious about having enough air to breathe if the elevator got stuck?
Scientists have found fossilized remains of dragonflies with wingspans several feet in diameter.
Have you ever wonder why bananas seem to go bad so quickly?
Turning blue in the face is easier said than done.