The smell of freshly cut grass is actually a plant distress call.
31
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Nearly 50% of the world's scientists are assigned to military projects.
71
A ball of glass will bounce higher than a ball made of rubber.
73
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
One ragweed plant can release as many as one billion grains of pollen!
51
The bark of an older redwood tree is fireproof.
65
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