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Why is cold air in the North cold in the South?

On winter days, when you turn on the radio, you often hear weather forecasts from meteorological radio: A piece of cold air from the...

Why does the climate affect health?

Ancient Chinese medicine scientists said that: Humans live in a natural environment. The change of climate will affect the normal circulation of blood in the body,...

Why does radar can measure storms, thunderstorms, and hurricanes?

Want to know the situation of thunderstorms, storms, and whirlwinds in remote areas? We can use radar to probe. Radar can emit radio waves. These...

Why can we know the weather based on the Moon?

To know why the Moon can predict the weather, first, explain what the moon general is clearly. Moon facies means the circular or missing variation...

Why is the temperature on the ground different?

The sun is hot in summer, unbearable, but the temperature below ground is very cool and comfortable. Take, for example, the average July temperature...

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,...
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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...