Balsa wood is classified as a hard wood!
41
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
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Nylon is made from coal and petroleum.
42
Billions of neutrinos pass unnoticed through your body every second.
6
Pure water (H2O) does not conduct electricity on its own.
46
Nearly 50% of the world's scientists are assigned to military projects.
71
One barrel of petroleum holds 42 gallons.
20