The airbag fully inflates in 25-50 milliseconds.

By comparison, it takes about 100 milliseconds to blink an eye.

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The American flag was designed by a high school student.

The current American flag has 50 stars and was designed by Robert J. Heft. Heft originally designed the American flag in 1958 as a school project during his high school years. Heft received a grade of "B" on his design, but Stanley Pratt, his teacher, promised that his grade would be revised if the U.S. Congress passed the flag design. Heft's design was not only chosen, but adopted by the 1959 presidential proclamation.

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The tallest Ferris wheel in the world

The height of this enormous construction is 142.52 meters. This new world record belongs to the Ferris wheel built on the shore of the Bohai Sea in Weifang, Shandong Province, China.

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It looks like ice, but it is flowing water. It is a rather rare state of fluid, called steady laminar flow, and it is not an optical effect.

Laminar flow is a flow in which the fluid moves in layers without stirring or pulsation (that is, without random rapid changes in velocity and pressure).

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Jaw-transformer.

The largemouth has an incredibly long jaw and a snout that can curl into a tube. When the fish detects potential prey, it sharply extends its jaw forward and sucks the prey in.

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German freediver Tom Sitas was underwater for 22 minutes and 22 seconds.

He broke the world record for holding his breath at the lowest depth in a relaxed state.

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The Dodge Charger is the most dangerous car in the world.

On the first day of sales, eight people crashed it.

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Measuring swimsuit length on the beach in the 1920s.

If a swimsuit was too short, women were fined.

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In Alaska, you can register on a special list and get alerts when an edible animal is hit on the road.

You can then buy back the carcass and eat it.

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U.S. president who has been reburied 17 times

U.S. President Abraham Lincoln has been reburied 17 times since his death, either because of tomb reconstruction or for security reasons. Six times his coffin was opened. Only in 1901, 36 years after his death, did Lincoln's body find final rest.

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Kieragbolten is the most dangerous rock in the world.

The fact is that it is located over a one-kilometer precipice, and tourists love to tickle their nerves. Almost every one of them tries to climb up the stone block to feel the rush of adrenaline. A gust of wind is enough to blow you into the gorge, because there is no safety harness.

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Snow rolls.

A natural phenomenon in which snowballs are formed by the force of wind and gravity without human involvement.

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A fantastic "elevator to the future"

A New York City mall has an elevator that shows the development of the city through the years.

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The air in a coniferous forest is virtually sterile now

No more than 200-300 harmful bacteria per cubic meter

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Emergency water discharge from a hydropower plant

Water is discharged when there is a threat of overflowing the reservoir due to flooding or heavy rains. It's scary to imagine the pressure of the water there.

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Congo tourmaline.

A diamond that appears to be pixelated.

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