fter decades trying to directly detect the waves, the recently upgraded Laser Interferometer Gravitational-Wave Observatory, now known as Advanced LIGO, appears to have succeeded, ushering in a new era of astronomy. Here’s everything you need to know to understand the big detection. Read more:http://ow.ly/Ydyuf
Light is necessary in order to see. Light is a form of energy and we need to ensure that we have enough energy to produce artificial light; if not, we will not be able to see when in dark places.
What happens when you pour liquid nitrogen on a flame? What about when you blow on the flame with a cup in the way? Try these five unusual ways to extinguish a candle. Pour out the flame with CO2. Cut off the oxygen supply to the flame without fully covering it. Snuff out the flame with a coil of copper wire, and when it appears dead, it will amazingly come back to life!
Creator: Dianna Cowern