Balsa wood is classified as a hard wood!
41
The sun is 330,330 times larger than the earth.
75
The smell of freshly cut grass is actually a plant distress call.
31
Cold water weighs more than hot water.
93
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
39
Liquid TIDE laundry detergent glows under a blacklight.
96