One 75-watt bulb gives more light than three 25-watt bulbs.
57
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
Most dust particles in your house come from dead skin.
48
Out of all the senses, smell is most closely linked to memory.
146
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
The average temperature at 40,000 feet above sea level is -60 F.
56
The sun is 330,330 times larger than the earth.
75