Sound at the right vibration can bore holes through a solid object.
134
Iron weighs more after it rusts.
16
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
Sound travels about 4 times faster in water than in air.
408
The bark of an older redwood tree is fireproof.
65