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
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
Each day, up to 150 species of life become extinct.
-23
One 75-watt bulb gives more light than three 25-watt bulbs.
57
Iron weighs more after it rusts.
68