Posted : 5 years ago

When water freezes it expands by 10%.

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Posted : 8 years ago

The surface of hot water freezes faster than cold water but the rest of the water will remain liquid longer than in a cold sample.

Liquid air looks like water with a bluish tint.

Industrial hemp contains less than 1% of THC, the psychoactive component of marijuana.

In a desert, a mirage is caused when air near the ground is hotter than air higher up. As light from the sun passes from cooler to warmer air, it speeds up and is refracted upward, creating the image of water.

Radio waves travel so much faster than sound waves that a broadcast voice can be heard sooner 18,000 km away than in the back of the room in which it originated.

Posted : 9 years ago

If the amount of water in your body is reduced by just 1%, you’ll feel thirsty.

The muscle that lets your eye blink is the fastest muscle in your body. It allows you to blink 5 times a second. On average, you blink 15 000 times a day. Women blink twice as much as men.

The length from your wrist to your elbow is the same as the length of your foot.

On average a hiccup lasts 5 minutes.

If all your DNA is stretched out, it would reach to the moon 6,000 times.

Posted : 9 years ago

Air becomes liquid at about minus 190 degrees Celsius.

Water expands by about 9% as it freezes.

The typical bolt of lightning heats the atmosphere to 50,000 degrees Fahrenheit.

Sound travels through water 3 times faster than through air.

The word “biology” was coined in 1805 by Jean-Baptiste Lamarck.