The smell of freshly cut grass is actually a plant distress call.
31
Balsa wood is classified as a hard wood!
41
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Indoor pollution is 10 times more toxic than outdoor pollution.
62
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
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
Neanderthal man had a brain capacity 100cc larger than modern man's.
50