Sound travels fifteen times faster through steel than through air.
134
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Out of all the senses, smell is most closely linked to memory.
146
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
Nuclear power prevented an average of over 1.8 million deaths between 1971-2009 as a result of lower air pollution from reduced coal usage according to NASA.
5
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155