The researchers adopted polishing technology used in the semiconductor industry (chemical mechanical planarization) to polish the surface of human teeth down to nanoscale roughness. Roughness left on the tooth after the polishing is just a few nanometers, which is one-billionth of a meter or about 100,000 times smaller than a grain of sand.

Bye bye tooth decay!

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Holy shit, you can actually bounce a water in a superhydrophobic (whatever) surface!

Ok, I googled it. Superhydrophobic are materials that have surfaces that are extremely difficult to wet. So, the water will somehow resist this kind material.

Using a high-speed camera GE scientists captured the details of the water dancing on superhydrophobic surfaces in GE Global Research’s Nanotechnology lab.

Here is their statement:

Hello everyone, I have some exciting videos that I want to share with you! Using a high-speed camera setup in the lab, we can finally capture the details of the water dancing on these amazing superhydrophobic surfaces. We discovered that even when the surfaces had the same contact angle for stationary water droplets, their ability to resist the wetting of impacting droplets could be totally different. In the following three videos, the contact angles of a stationary droplet on all three surfaces are ~150 degree. When an impacting droplet (with the same impact speed) hits on the surfaces, the droplet can either stay on the surface.

Look at the way the water droplet spreads, recoils, breaks into satellite droplets, and completely lifts off… that’s what we really want for an impacting-droplet resistant surface! You might wonder what we can do with a cool thing like this? Imagine applications that involve high speed water droplets, such as wind turbine blade, airplane wing, or even just your car in motion. These are just a couple of the exciting possibilities that we are looking at.

Amazing stuff!

SOURCE

The structure covers 538 square feet and travels 26 feet into the earth. In it’s construction, the colony moved 40 tons of soil. Billions of ant loads of soil were brought to the surface. Each load weighed four times as much as the worker ant, and in human terms, was carried over 1/2 mile to the surface.

In the video, the scientists pour ten tons of liquid concrete into the ant colony, wait several weeks for it to set then excavate it.

1. Don’t stick out your tongue if you want to hide your identity. Similar to fingerprints, everyone also has a unique tongue print!

2. Your pet isn’t the only one in the house with a shedding problem. Humans shed about 600,000 particles of skin every hour. That works out to about 1.5 pounds each year, so the average person will lose around 105 pounds of skin by age 70.

3. An adult has fewer bones than a baby. We start off life with 350 bones, but because bones fuse together during growth, we end up with only 206 as adults.

4. Did you know that you get a new stomach lining every three to four days? If you didn’t, the strong acids your stomach uses to digest food would also digest your stomach.

5. Your nose is not as sensitive as a dog’s, but it can remember 50,000 different scents.

6. The small intestine is about four times as long as the average adult is tall. If it weren’t looped back and forth upon itself, its length of 18 to 23 feet wouldn’t fit into the abdominal cavity, making things rather messy.

7. This will really make your skin crawl: Every square inch of skin on the human body has about 32 million bacteria on it, but fortunately, the vast majority of them are harmless.

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Ever wonder what insect causes the most painful bite on earth?

Well, It's from this fella below:

This insect is called the Bullet Ant.

Its sting is said to be the most painful on earth.

It's called the bullet ant because the sensation of its sting has been likened with that of being shot by a bullet.

This bad boys dwells in the rain forests of Atlantic coastal lowland from Nicaragua southward to the Amazon basin.

The bullet ants populates on trees and if it falls on you, it has the habit to shriek before biting you in the ass. Seriously.

One of the first descriptions ever of a bullet ant’s sting on a human was made in the 1920's by Belgian natural historian Joseph Charles Bequaert (1886-1982). Such a sting is extremely painful and often compared with the pain caused by a bullet shot – hence the name bullet ant. For those who have not been shot but rather stung by a wasp, the pain caused by the sting of a bullet ant is 30 times worse…

Uhhm, did I mention it shrieks??!!

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