A single speck of dust is half way in size between a subatomic particle and the Earth.
15
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
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21
The average temperature at 40,000 feet above sea level is -60 F.
56
Aluminum used to be more valuable than gold!
84
The only letter not appearing on the Periodic Table is the letter "J".
180