Science story
Glycerine and its miraculous uses in life
Glycerine was first discovered in 1779 by Carl Wilhelm Scheele, a chemist from Sweden.
Science story
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Articles & explainers
1,294 published items in this category and its subcategories.
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What color is the mirror? 99% of people get it wrong!
Some people may think that a mirror has no color or that it is the color of whatever you look at it.
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Why does iron sink in water but float when dropped in mercury?
When you drop a super-heavy iron anvil into a pool of mercury, a strange thing happens, it's that the iron anvil can't sink to the bottom and this is a pretty interestin…
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Why does the tropics have such high biodiversity?
The tropics clearly have greater biodiversity than temperate and temperate regions, but explaining why is far from easy.
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Why does Europe have a seemingly 'useless' paper currency: 0 Euro bill, even cost to buy?
The zero-value banknote is perhaps unique in the European Union. In terms of security features against counterfeiting, it is exactly the same as other 'real' denominatio…
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If sound is as fast as the speed of light, what happens?
If sound is as fast as the speed of light, it can lead to unexpected disaster.
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Why are planets suspended in space?
Perhaps many people in their youth looked up at the sky and saw the shining stars, they thought: Will they fall one day? What if it fell and hit the Earth?
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Thor Heyerdahl and his wild adventure across the ocean in a homemade boat
Norwegian ethnographer Thor Heyerdahl built a raft from balsa logs and hemp rope, which successfully crossed the Pacific Ocean in 1947.
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Time dilation, or has our perception of time slowed down?
Most people who are isolated at home due to complicated Covid-19 developments said they feel time is passing more slowly.
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John Wilkins- 17th-century astronomer designed a vehicle to fly to the Moon
Scientist John Wilkins was the first to propose a manned mission to the Moon, and he once designed a winged vehicle to accomplish the goal.
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The reason why tourists are nauseated and hallucinating when coming to Paris
The French capital is a city steeped in history, home to top destinations. However, some tourists cannot fully enjoy their trip here.
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Humans are in danger of extinction
Scientists have recently warned that humans may face an unexplored risk of extinction
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1g of salt dissolved in 1g of water, why is the total mass not 2g?
Considering the usual four-dimensional problem, what is the final total mass of a pound of salt dissolved in a pound of water?
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Falling in love with a Soviet spy, Albert Einstein revealed the secret of developing nuclear weapons
Right! Einstein was obsessed with a woman ten years younger than him, he even revealed the secret of developing the atomic bomb in the Soviet Union.