The force of a suction cup is calculated using F=AP.
15
Your brain is 80% water.
525
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
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
Sound travels about 4 times faster in water than in air.
408
4.5 pounds of sunlight strike the Earth each day.
27
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0