Sound travels fifteen times faster through steel than through air.
134
The bark of an older redwood tree is fireproof.
65
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
The smell of freshly cut grass is actually a plant distress call.
31
Cold water weighs more than hot water.
93
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Dr.Jonas Salk, the man who came up with the cure for polio, didn’t patent the drug. This made the drug more affordable to the general public, and he lost out an an estimated $7 billion dollars for himself.
41
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118