The effect of resonant frequencies

The frequency-selective response of an oscillating system to a periodic external action, which manifests itself in a sharp increase in the amplitude of the stationary oscillations when the frequency of the external action coincides with certain values characteristic of the system.
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Rather peculiar properties can be observed when combining neodymium magnets and stainless steel.
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When already in the 19th century it was possible to transmit energy without wires, but only now realized.

The video features a Tesla coil from the 19th century. It allows wireless transmission of electricity.
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Seattle
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The American company Clockwork has taught a robot to make nails.
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Model Zero - intelligent bait for fishing

Immediately after landing"in the water, Model Zero begins probing and continues to do so until it is removed from the water. It perceives environmental factors and tracks the movement of the bait.

The device collects data from all over the world for scientific analysis; organizes and analyzes data on fish species, underwater environment, bait type, color and movement. This will allow anglers to understand the behavior of fish better.
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Step by step, this protein paces

That's exactly how proteins move around inside our cells - thanks to kinesin☝🏻

It is also a protein, but exclusively a "transport" one. It takes its "steps" through special microtubules.
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Why are dogs wagging their tail or tucking it in?
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Under the tail of the dog there is a special gland responsible for the individual smell. When meeting dogs, they sniff each other under the tail and remember the smells. Dogs wag their tails when they want to "get to know", "like" and spread the smell as much as possible. And when frightened, on the contrary, they turn tail.
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Topher Grace, The Rock, and Laura Prepon. 1999.
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Cableway over the ocean in Indonesia.
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Pool water under a microscope🔬
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"Capitalism creates inovation''

Level of freedom in European countries
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Picking apples without human involvement
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RoboMaster S1 - DJI's first ground-based gaming robot

DJI has released RoboMaster S1, a modular construction toy that is the first ground bot released by this manufacturer.

The robot has omnidirectional wheels, a powerful processor, a set of sensors, a camera, and even a gel bead gun.

Children can not only build the bot, but also program new movements. Though the basic programming system is also quite comprehensive.
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The Bаrgаte in Southampton was built in 1180 - it's now flanked by a Burger King and a McDonalds!
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