Invention of Microwave Oven | How Microwave Oven Works? Microwave Oven Working Explained with 3D Animation - video Dailymotion

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Transcript

00:00The scientist who invented the microwave oven was undoubtedly a genius.

00:04During an experiment with a magnetron,

00:06he was surprised to find that the chocolate in his pocket had completely melted.

00:11Only then did the scientist learn that microwaves also have the ability to heat food,

00:16and he began to think of applying microwaves to cooking food.

00:19The first task now is to find the cause of chocolate melting.

00:23Soon scientists observed that microwaves are electromagnetic waves with a specific spectrum

00:29and have oscillating electric and magnetic fields.

00:32Chocolate and most foods contain a lot of water.

00:35We all know water.

00:36The molecule is H2O which contains two hydrogen atoms and one oxygen atom.

00:41The oxygen end and the hydrogen end will have different charges.

00:45At this time, the constant oscillation of the microwave electric field

00:50will cause the water molecules to follow the changes in the electric field

00:54and start to rotate continuously,

00:56causing the water molecules to rotate continuously.

01:00The friction and collision generate heat and the chocolate melted.

01:03Scientists also discovered that microwaves are not the only electromagnetic waves that can heat food.

01:10In fact, any electromagnetic wave has the ability to heat food.

01:14However, if the wavelength is larger,

01:16it will easily penetrate the food and prevent it from being heated.

01:20Food transfers enough energy.

01:22In order to transform the concept of microwave heating into a feasible product,

01:27scientists must make full use of the energy of microwaves

01:30and use the properties of microwaves to reflect when they encounter metal plates

01:34to put them into a metal utensil.

01:36This is what we are familiar with.

01:38At this time, scientists discovered that as long as the distance between the metal plates

01:43is controlled to be an integral multiple of the wavelength,

01:46the moving waves formed by multiple reflections

01:49will superimpose to generate a strong assist wave,

01:53which can heat the food faster.

01:55Because the injected wave is a wave that can only go up and down.

01:59Stationary waves that fluctuate but do not propagate in space

02:03cause the food to be heated unevenly.

02:05To overcome this problem,

02:07the microwave oven is equipped with a rotating plate to better heat the food evenly.

02:11If you found this microwave science fascinating,

02:14don't forget to like, comment, share and follow for more tech adventures.

Invention of Microwave Oven | How Microwave Oven Works? Microwave Oven Working Explained with 3D Animation

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