Billions of neutrinos pass unnoticed through your body every second.
6
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
One 75-watt bulb gives more light than three 25-watt bulbs.
57
During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
21
Hot water can freeze faster than cold water.
181
Most dust particles in your house come from dead skin.
48
4.5 pounds of sunlight strike the Earth each day.
27
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15