Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Scientists are attempting to create a synthetic brain by reverse-engineering the mammalian brain down to the molecular level. A cellular human brain is predicted possible by 2023. It hopes to shed light on consciousness.
10
One 75-watt bulb gives more light than three 25-watt bulbs.
57
A ball of glass will bounce higher than a ball made of rubber.
73
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155