Out of all the senses, smell is most closely linked to memory.
146
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
Your brain is 80% water.
525
Nylon is made from coal and petroleum.
42
In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
39
4.5 pounds of sunlight strike the Earth each day.
27