Out of all the senses, smell is most closely linked to memory.
146
The smell of freshly cut grass is actually a plant distress call.
31
The average home creates more pollution than does the average car.
33
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
Sound at the right vibration can bore holes through a solid object.
134
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18