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Learn super fun magic: Make coins float on the water
The coins in the world are all made of metal. But already metal, of course, cannot float on the water, because the metal has a much higher specific gravity than water.
Metal
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Articles about Metal
604 published items.
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Super speed boat 1,200 km / h is 10 times stronger than steel
The billionaire Hyperloop technology company Elon Musk intends to build a super-high-speed vibranium hull, ultra-light, but 10 times stronger than steel.
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Why is a portrait on a coin a half-face image on paper money that is face-to-face?
As early as the 7th century BC, the first coins were produced in the Lydia region with decorative bulls or lions.
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How do vending machines distinguish coins?
Although it was born in the early 19th century, but you really know
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The reaction was unexpected when pouring copper melted into Hamburger
Can you guess what the fate of this Hamburger will be? It is known that copper is a metal with a melting temperature of more than 1,085 degrees Celsius, enough to melt a…
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You will be surprised to know that technology today can do this
The development of technology can be said to be no limit. 100 years ago, who dared think TV would be everywhere like today?
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The most rare metals on the planet
Gold and diamonds are commonly known as rare and expensive metals in the world. But few know that there are other rare and more expensive metals because of their special…
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What happens when skin is exposed to molten metal?
A young man wants to find the answer to the problem
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8 mistaken 'standard' science but need to 'correct'
Humans have only 5 senses, the material exists in 3 forms of liquid solid gas, the universe does not exist gravity ... is 3 in the wrong science need
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Additional discovery of the third 'space sphere' in Vietnam
At noon 4/1, exchanging with PV, Mr. Duong Quang Dien - Chairman of An Luong commune (Van Chan, Yen Bai) said that the commune People's Committee has just handed over a…
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Life cycle of a mobile phone
The journey of a mobile phone from the moment it was born until it was thrown away by the user.
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Gold: strange events that few people know
Maybe you know very well the price of gold going up and down daily, but there are some interesting stories about this particular type of metal you may not know.
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Coins made from special materials
Before being made of current common materials such as metal, paper or plastic ... the coins of some countries were made from bottle caps, squirrel skin, salt, even potat…
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Your tongue will stick to the cold metal
If someone challenges you to stick your tongue against a cold flagpole, don't do it. Your tongue will stick to it, and you'll have to take a lot of time
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10 sounds make people feel the most uncomfortable
Scientists have seriously studied to find out what sounds cause the most discomfort for humans.