Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
The smell of freshly cut grass is actually a plant distress call.
31
If the chemical sodium is dropped into water it will immediately and violently explode.
67
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
One barrel of petroleum holds 42 gallons.
20
Nylon is made from coal and petroleum.
42
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16