Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Scientists in Germany have developed a candy that doesn't cause cavities.
11
The smell of freshly cut grass is actually a plant distress call.
31