You will be surprised to know the uses of these very ordinary things

1. The meaning of the symbols written on the carton
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3. Decode the 7 familiar symbols but few people know about their mysterious origins

The objects we use every day, they are made based on different uses. Even its initial use is completely different from the way we humans now use. To solve these problems, let's explore these interesting things through a few familiar widgets below!

1. Round holes on paper cup covers for hot drinks

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Today the demand for coffee take away is increasingly prevalent around the world, with a paper cup with lid that can be worn everywhere is the first choice of many. people.

Using this cup offers a lot of benefits, both keeping heat and ensuring a cup of coffee, and can easily distinguish different tastes to avoid confusion. You can easily find the right cup of coffee without opening the lid, "secret" that is located in the round holes on the lid of the cup with the name of the drink.

The next time you order drinks, try to observe these round holes to find your drink in many different cups!

2. Suspended clothes made of pine tree wood

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If you regularly go to fashion stores, keep an eye out, most of the store's hangers are wooden. And the raw materials for making these pieces are taken from pine trees.

You will be curious and ask why the pine wood is not a different kind of wood. This is extremely simple, the pests and mold are extremely allergic to the pinewood oil, so just a little scent of these insects must have gone away and uncontrolled. Get into the closet too.

3. Blue hair on the toothbrush

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When using a toothbrush, whichever criterion you will use to identify your expired toothbrush, you need to replace a new toothbrush. I am sure that 100% of people will rely on the hair of their hair when worn, but no one can remember when to use this brush to calculate. Sometimes that method is not entirely accurate, to determine if the brush is damaged, you can look at the color of the brush hair. Normally manufacturers often dip into non-toxic solutions to create different colored hair areas. Mostly, people use blue. When you brush your teeth, these green colors will gradually fade away from 3 to 4 months over time. When you notice that the bristles start to fade, then it is time you need to replace the new brush.

4. Plastic bubble film

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This bubble plastic film is probably the favorite toy of many people, and is also a device that many people use to wrap fragile items when transporting. However, the production purpose of this plastic film is not used to wrap goods like this.

In 1957, Alfred Fielding and Marc Chavannes used to make wallpaper, because this type of coating could easily clean stains. However, shortly after the IBM computer company purchased a bubble film to wrap around the computer before packing.

5. Sleeping pillow

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The sleeping pillow was invented to prevent insects from creeping into their noses, ears, and mouths when people fell asleep. Besides, this object is also used for different purposes.

Africans believe that sleeping pillows can help you talk to your ancestors in dreams. Strangely, the European faction did not use sleeping pillows because they thought this was a symbol of weakness.

6. T-shirts

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This day's T-shirt is a fashion trend that has never been fad with people. You can wear T-shirts everywhere, regardless of age or gender. However, in the Second World War, T-shirts were only seen as a underwear, when someone wore a T-shirt to the street, it was assumed that this person was like a chicken with furry hair. public.

That's it, but until 1951 when the T-shirt was first shown on television in a movie called "A Streetcar Named Desire", the T-shirt gradually became more sympathetic, and it was wear them more until now.

7. Treadmill

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Today treadmill is a tool used in gyms for those who want to keep fit. However, do you know that this machine was once one of the most horrific prison torture tools in Britain and the United States in 1818.

Initially, this machine was used to exhaust the prisoners' labor. In it, they have to step on the gears of the machine and move forward to pump water into the prison or crush the grain.

8. Webcam digital video recorder

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The webcam was invented by the University of Cambridge for the first time in 1991. Initially, it was used to monitor a coffee maker.

This webcam has recorded images updated 3 times / minute, they can know when the coffee has been mixed if there is a need to enjoy.

9. Tea Bags

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Thomas Sullivan, a merchant who accidentally invented a tea bag in 1941. Initially, the tea was originally contained in large tin cans, but Sullivan said that it would be more profitable to divide tea into small bags so he arrested First use small silk bags to hold tea. The diners at New York restaurants found that putting both small tea bags directly into the kettle or cup to make tea would be much more convenient, so filtered tea bags were born.

10. Fidget Spinner

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Fidget Spinner became popular since 2017, although it was invented in 1993. Catherine Hettinger made this toy for girls from newspaper and duct tape. Fidget Spinner is believed to make it easier for people who are anxious and unable to concentrate on reducing stress.