Physics

2021-10-11 18:02:58 The sole survivor since the time of the dinosaurs is the goblin shark.

This post was published by the renowned Discovery, now on Telegram as well!

Loads of content on our marvelous world, by the legendary channel!

Subscribe - @tg_discovery Открыть/Комментировать

2021-10-11 12:58:00 Chemical reaction through a thermal imaging camera

A thermal imaging camera is a device for observing the temperature distribution of a test surface. The temperature distribution is shown on the display as a color picture with different colors for different temperatures.

All bodies with a temperature above absolute zero emit electromagnetic thermal radiation according to Planck's law. Открыть/Комментировать

2021-10-09 19:01:32 Laser applications

In medicine, lasers are used as bloodless scalpels, such as in the removal of cataracts and lens replacement.

They are also used in teeth whitening. For this purpose, an oxygen-containing gel is applied to the tooth surface and the tooth is irradiated with a laser.

The laser light causes a chemical reaction in the gel that releases oxygen.
It penetrates deep into the tooth enamel and whitens it. Открыть/Комментировать

2021-10-08 19:11:06 Titanium nickelide stores its shape

If you harden a complex-shaped part made of nitinol, deform it after it cools, and then heat it again to a temperature above 40°C, its original shape will be restored.

How does it work?
It happens since Nitinol is an intermetallic, i.e. a chemical compound, not an alloy. When quenched, the mutual arrangement of the atoms is ordered, causing the shape to be remembered. Открыть/Комментировать

2021-10-07 18:17:03 Physics in circus

The law of conservation of angular momentum is used in circus art. When a juggler tosses up his Indian clubs/balls/plates he puts them into rotation.

Only in this case the objects return to his hands in their correct position. Открыть/Комментировать

2021-10-06 18:03:41 Centripetal Spheres

That's an interesting toy, illustrating the oscillation of energy between elastic potential energy and kinetic energy of rotation. Открыть/Комментировать

2021-10-05 15:45:04 Acetylene combustion and explosion in slo-mo (330,000 frames per second).

Magnificent view! Открыть/Комментировать

2021-10-04 15:45:05 Glass model of steam locomotive running Открыть/Комментировать

2021-10-03 15:45:13 In 2019, the Nobel Prize in Physics was awarded to astrophysicist Michel Mayor, who discovered a unique exoplanet

And that's how the news of the award caught up with him, in a casual coffee shop at a Spanish airport. As the photo was taken, his inboxes were clogged with messages and congratulations. Открыть/Комментировать

2021-10-02 20:52:19 A knowledge of physics can help you create awesome, but sometimes HATEABLE things! Открыть/Комментировать