Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
Sound travels fifteen times faster through steel than through air.
134
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
The smell of freshly cut grass is actually a plant distress call.
31
Aluminum used to be more valuable than gold!
84
If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117