Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Liquid TIDE laundry detergent glows under a blacklight.
96
If the chemical sodium is dropped into water it will immediately and violently explode.
67
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
4.5 pounds of sunlight strike the Earth each day.
27
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
One third of the electricity produced on earth is used to power electric light bulbs!
75