Stirling engine

A heat mechanism with a working body consisting of gas or liquid, moving in a closed space, a type of external combustion engine.

One of the "perpetual motion machine" prototypes

Scientists are racing against the clock to find a source of perpetual energy. For sure, we'll see it in action before long.

Fascinating dandelion experiment

The reason for this is the fatty layer covering the seeds.

All seeds have a phospholipid layer that envelopes each of their cells, so they repel water.

A knowledge of physics can help you create awesome, but sometimes HATEABLE things!

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.

Glass model of steam locomotive running 🚂

Acetylene combustion and explosion in slo-mo (330,000 frames per second).

Magnificent view!

Centripetal Spheres

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

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.

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.

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.

Dissolution of gold in mercury

The process by which gold is dissolved in mercury is the basis of a method for purifying the noble chemical element from natural impurities, and is used in the extraction of the precious component from the rock to cover the surface of products.

Low pressure air syringe

Under the influence of a strong electromagnetic field, the gas in the syringe is ionized and transformed into cold plasma

Wind generator with photovoltaic panel and energy storage for street lighting.

Helicopter physics

☝🏻 A helicopter, unlike an airplane, is capable of rising vertically upward.
Lift force is provided by the bearing propeller. However, the rotation of such a propeller, according to Newton's Third Law, should cause the body to rotate in the opposite direction, which would turn the machine into a real merry-go-round.

To avoid this, either a second propeller rotating in the opposite direction is placed over the first propeller, or a tail rotor is placed on the tail. In addition to maneuvering itself, it prevents the hull from spinning out, neutralizing the movement of the main rotor.

Magnetic Slime

A toy for young physicists!

Silver crystal growth on copper wire.

Such a beauty…

Extraordinary Startup – Programmable Clothing

Now before you go out, you don't have to worry about any part of your clothes not matching the color 👌🏻

Saw this startup on the channel @startups_tg

Supermassive black holes

At the center of our Milky Way, there is an extremely massive black hole millions of times heavier than the Sun.

Such supermassive black holes have also been found in the heart of other galaxies. They were able to be calculated by observing the interstellar gas movement

It is assumed that the center of each galaxy is a giant black hole.

​Energy doesn't go anywhere

Energy cannot run out. Just as, for instance, there is no fuel in the car, there is no energy to go anywhere.

Energy passes from one form to another. This statement is based on the law of conservation of energy, which says that energy cannot be created from nothing and cannot be destroyed: it can only be transferred from one form to another.

Imagine a full-flowing river dammed by man, where a huge mass of water has potential energy. The water produces work, it turns the turbine.

Wind also has energy; it comes from the uneven heating of the atmosphere by the sun, the unevenness of the earth's surface, and the rotation of Earth.

The velocity of the wind determines the amount of kinetic energy, which can also be converted into the mechanical energy of the turbines. The turbines, in turn, produce the electric current that comes into our homes and lights lamps, makes computers, kettles, irons...

The energy doesn't go away.