Why does the refrigerator stick one side that does not stick to the refrigerator? In fact, this is the same technology as particle accelerators
Release time:
2023-05-15
Have you noticed the problem: why can only one side of the refrigerator stick stick to the refrigerator now, and the other side can't stick to the refrigerator after being placed on it, causing it to fall off?
Have you noticed the problem: why can only one side of the refrigerator stick stick to the refrigerator now, and the other side can't stick to the refrigerator after being placed on it, causing it to fall off?
That's not quite right, shouldn't magnets have magnetism on both sides? Why can't it stick on one side?
In fact, this is because the magnet array method in particle accelerator is applied to the current refrigerator sticker.
By using this array method, we can also manufacture electromagnetic cannons at home. Let's take a look together!
Key concepts
Halbach array
Materials and Operations
If you have a refrigerator sticker that doesn't have a cylindrical magnet behind your butt, you can use it to observe this phenomenon: stick the front of the refrigerator sticker to the refrigerator and see if it will fall off.
The principle behind this will be explained later. If you have some permanent magnets at home, you can use this principle to conduct more interesting experiments. Let's build an electromagnetic railgun.
By arranging the north and south poles of the magnets in a staggered manner like the one below, and then fixing them, the magnetic field can be enhanced to create an electromagnetic cannon!
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