Balsa wood is classified as a hard wood!
41
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21
Out of all the senses, smell is most closely linked to memory.
146
At 15 years old, Jack Andraka invented a method of diagnosing pancreatic cancer, thus helping to save the lives of millions of people around the world. It is 168 times faster, 26,000 times cheaper, 400 times more sensitive, and has a 99% success rate.
15
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108