Coloring by number was invented by Leonardo da Vinci.

In doing so, he taught his students.

Sky in Diamonds

Kilauea volcano in Hawaii has been active for almost two months. It turned out that besides fear and destruction, the volcano can produce something beautiful. Together with the lava, small crystals of the semiprecious stone olivine erupted onto the earth!

Olivine is a very common mineral, the most abundant in the Earth's mantle. It is the volcanic activity that usually helps the olivine, melted in the magma, to come to the surface.

Stabilization system that allows the bike not to fall down without using the foot

It's like some kind of magic: burning fluff.

There's a very famous restaurant in London that guarantees no hair in the dishes because all the cooks are bald.

The longest mileage in the history of automobiles.

The Volvo car holds the record for the longest mileage in history - 5.2 million kilometers, which is six trips to the moon and back. This fantastic figure was reached by Irv Gordon, who bought a Volvo P1800 in 1966 and drove it for the rest of his life in 2018.

With just one breath, a beaver can swim up to 800 meters underwater.

In space, metal sticks together

If you put two pieces of metal together in space, they will stick together. This process is called cold welding. Atoms on the surface of metals don't "feel" the difference between their metal and their neighbor. And they form similar bonds with them.

On Earth, this is prevented by oxygen, which is found in almost every corner of our planet. And oxidation prevents them from sticking together.

Astronauts, who bring instruments from Earth, are not afraid of "sticking" anyway. After all, every instrument retains an oxide layer. Any additional layer, be it gas or dirt, prevents sticking.

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In Norway, they make a special cheese called brunust, which has a brown color and a sweet taste. To make this cheese, whey from goat or cow's milk is boiled together with cream for several hours. The sugar from the milk turns into caramel, which gives the cheese a sweetish taste.

The real color of the sky is purple.
Although hard to believe, the sky is actually purple. When light enters the atmosphere, air and water particles absorb the light, scattering it. This scatters the purple color the most, which is why people see a blue sky.

An ant cannot die from a fall.
Because of their incredibly light weight, rugged exoskeleton, and sail - the finite fall speed developed by the ant is not enough to kill or injure it on impact.
Simply put, they could survive being dropped from a height of 400 meters and escape unharmed.

Name of connectors

This will definitely come in handy.

LG's bendable touch screens of the future.

The last time lightning struck an airplane was in 1965.

High-speed train 🚅

Video games slow down the aging process.

To pack your child for school in Finland, you only need a briefcase.

Everything else is free, even lunch.

🐕 Besenji.

This is the only dog breed that can't bark.

Dogs of this breed do not smell and often wash their paws like cats.

Textual information is 75% better absorbed in the toilet.

Russia was named the world leader in the number of seals.