The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
A ball of glass will bounce higher than a ball made of rubber.
73
The average home creates more pollution than does the average car.
33
Most dust particles in your house are made from dead skin!
67
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
Sound at the right vibration can bore holes through a solid object.
134
Out of all the senses, smell is most closely linked to memory.
146