One gallon of used motor oil can ruin approximately one million gallons of fresh water!
Scientists in military projects
Nearly 50% of the world's scientists are assigned to military projects.
More Science Facts
One third of the electricity produced on earth is used to power electric light bulbs!
Out of all the senses, smell is most closely linked to memory.
Everyone has a unique smell, except for identical twins.
Taste is about 75% smell.
Women are born better smellers than men and remain better smellers over life.
Smell acuity peaks in women at ovulation.
Some people can't smell skunks, while others can't smell freesias.
Smell function falls off dramatically in men after their mid-50s, a decade earlier than in women.
Green apple and cucumber scents create the impression of a larger space, while the scent of roasted meat creates the impression of closer quarters.
Astronauts in space tend to lose their sense of smell and taste. Because of the lack of gravity, their sinuses fill up with fluid, causing stuffiness similar to a cold.
The smell of lavender can help with insomnia and sleep disorders.
The aroma of Green Apples can help control appetite.
In a recent study, men thought women wearing a Lily of the Valley scent were 12 pounds lighter!
Humans use insect warning chemicals, called pheromones, to keep away pesky insects!
People who cannot smell have a condition called Anosmia.
If your nose is at its best, you can tell the difference between 4000-10,000 smells!
As you get older, your sense of smell gets worse. Children are more likely to have better senses of smell than their parents or grandparents.