Balsa wood is classified as a hard wood!
41
Sound at the right vibration can bore holes through a solid object.
134
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Aluminum used to be more valuable than gold!
84
In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44