Homeless woman lived in a man's closet for a year. A Japanese man who was mystified when food kept disappearing from his kitchen, set up a hidden camera and found an unknown woman living secretly in his closet.

Traffic in Oxford Street, London c1905 and 2014.

A thylacine or 'Tasmanian tiger' in captivity, circa 1930. The last thylacine died in captivity in 1936.

Ottoman Empire armor belonging to Sultan Mustafa III -18th century. Topkapi Palace, Istanbul,Turkey.

One of the engineers assembled his own exoskeleton, just look at this technology 😮

a man from Canada has set a new world record.
He moved the plane weighing 150 tons, more than 8 meters

A Jacana carrying its babies under its wings

Former slave named Gordon shows his whipping scars. Baton Rouge, Louisiana, 1863

"Mad Max" in Russia. The driver survived.

Why does the voice change with helium?

When you inhale ambient air, your vocal cords vibrate in "normal" mode.

However, helium has a lower density, around 7 times lower than air. As a result, the vocal cords are less strained and vibrate at a higher frequency. The voice becomes higher and more squeaky.

And if you inhale a heavy gas, such as sulfur fluoride, which is five times heavier than air, even a child will start talking in a bass voice.

Super Absorbent Polymer: poly-acrylamide polymer crystals are able to absorb up to 200 times their volume of water. Here seven small spheres, approximately 4mm in diameter, were immersed in water for three hours, after which they were slightly more than 23mm across. The final gel sphere is more than 99.5% water- and they bounce!

Google developing a Starline system for 3D video calls with effect of total presence

The goal of the project is to achieve the effect of nearly total presence of the interlocutor to your video calls. The callers, who are thousands of kilometers apart, communicate as if they are speaking through glass, all the while being in the same room.

This system comes with several cameras, sensors and a large display inside.

The project combines three key technologies – the creation of a 3D model of the caller, data compression during transmission in real time and visualization of 3D images and voices on other end of the call.