Also known as frozen smoke, Aerogel is the world's lowest density solid, clocking in at 96% air. It is basically just a gel made from silicon, except all the liquid has been taken out and replaced with gas instead. If you hold a small piece in your hand, it is practically impossible to either see or feel, but if you poke it, it is like styrofoam.

Aerogel is also quite useful. It supports up to 4,000 times its own weight and can apparently withstand a direct blast from two pounds of dynamite. It is also the best insulator in existence, which is why we do not have Aerogel jackets: it works so well that people were complaining about overheating on Mount Everest. ...

This is the pygmy marmoset (Cebuella pygmaea), the smallest known monkey in the world.

They are found in western Brazil, southeastern Colombia, eastern Ecuador, eastern Peru, and northern Bolivia and they typically live in the understory of the rain forest near rivers. Males weigh around 140 grams (4.9 oz), and females only 120 grams (4.2 oz).

Whitening treatments do not permanently whiten teeth. If you expose your teeth to foods and beverages that cause staining you may see the whiteness start to fade in as little as one month after treatment. Those who avoid foods and beverages that stain may be able to wait one year or longer before another whitening treatment or touch-up is needed.
You worked hard to get your teeth white. Here are some tips to help maintain your pearly whites.

• Avoid the consumption of or exposure to products that stain your teeth, such as coffee, tea, and red wine. If you do choose to consume beverages that stain, consider using a straw so that the liquid bypasses your front teeth.
• Brush or rinse immediately after consuming stain-causing beverages or foods.
• Fo

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The third largest asteroid to ever hit earth has been found in South Australia. According to scientists involved, the asteroid, which measured up to 20 km across, hit Earth approximately 360 million years ago. This was around the time of the Late Devonian mass extinction, strengthening the idea that asteroid impacts have been associated with many mass extinctions throughout the history of life on Earth.

Mr. Peebles from Pekin, Illinois, USA was claimed as the world's smallest cat. Mr. Peebles is two years old cat weighing just three pounds and measuring 6.1 inches in height. This anomaly is caused by a genetic disorder.

Your brain is trying to do two things at once. Look at the image and try to say the colour of the word you see, rather than the actual word itself. It’s very tricky to do. The words seem to wrestle in a bizarre power struggle with the colours. This is because the right side of your brain is seeing the colour of the word while the left side is trying to say the word itself.

http://www.youtube.com/watch?v=327-bwMQI-Y&feature=youtu.be

This tongue eating fish parasite is one of the creepiest and most disturbing creatures around.