Most dust particles in your house come from dead skin.
48
The smell of freshly cut grass is actually a plant distress call.
31
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Cold water weighs more than hot water.
93
Nylon is made from coal and petroleum.
42
Iron weighs more after it rusts.
16