The smell of freshly cut grass is actually a plant distress call.
31
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
One ragweed plant can release as many as one billion grains of pollen!
51
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
A ball of glass will bounce higher than a ball made of rubber.
73