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An advanced cloud laser

Clouds are an important basis for weather forecasting and a parameter that aviation safety needs to know. Measuring the altitude of clouds is common using...

Why are temperatures in cities higher than in the suburbs?

According to monitoring documents of recent decades, the city's temperature is always higher than in the suburbs. This is known as the "heat island...

Meteorological satellites

The Earth is a planet. The celestial bodies orbiting the planets are all called satellites. The Moon orbits around the Earth, so the Moon...

The principle of washing machine operation

Thanks to the washing machine, the laundry job will be a lot of leisure. Let's open a commonly used washing machine and see how...

Why first see lightning and then hear the thunder?

In summer, there are often lightning and thunder (lightning). When the electric fields between the positive and negative charges in the rain cloud differ...

“Global weather experiment”

Predicting natural disasters such as hurricanes, storms, snowfalls, tornadoes (tornadoes), hail, droughts, and floods to guard against is the first and most important meteorological...

What is the principle of microwave oven operation?

How convenient it is to cook food in the microwave. Microwave raw or cold food, close oven doors, switch on, and a moment later,...

Why do thunderstorms appear when it comes to the small rain, or is there only thunder?

Hot summer, suddenly high dunes stood on the horizon, and a moment later, thunder roared. Everyone is excitedly waiting for a thunderstorm to dispel...

The remote control operation principle

In recent years, home electrical appliances have also followed the direction of intellectualization and remote control. The remote control technology is increasingly applied to...

Why is it easy for lightning to strike tall, solitary objects?

The bottom of thunderstorm clouds is often electrically charged. This electrical energy causes the ground to induce induction, to produce clusters of opposite charges....

What is Photocopier’s principle of action?

The is fabricated on the principle that positive and negative charges attract each other. When a paper with an image to be reprinted is...

Why do we usually have a thunderstorm in the summer?

Summer afternoon or early evening often gives us an unusually hot feeling. Moments later, suddenly, thunder rumbled, then flashed, the torrential rain, immense, the...
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What is color television?

The human eye sees an object and can see its colors because the light it emits, or light from its surface, bounces off, enters...

What is an audio CD?

Edison's phonograph underwent constant innovation to become a popular electric phonograph. It is made up of the motor, the turntable, the receiver, and the...

What is the principle of the fire detector?

Fire harms human lives and property, damages the ecological environment. Fire prevention is a matter of concern to all humans. If it is possible...

What is the principle of the theft alarm?

In important places such as money, gold, silver, underground record storage, etc., if a fraudster suddenly sneaks in. the burglar alarm will immediately sound...