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3 reasons why no one counterfeited ancient paper money in ancient times
An ancient Chinese banknote is just a piece of paper, so why didn't anyone counterfeit it, how did the ancient government prevent counterfeiting?
Measure
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Articles about Measure
444 published items.
Oceanography
How deep is the ocean?
The average depth of the ocean is about 3,700m. The deepest point in the ocean known today is Challenger Deep in the Mariana Trench with a depth of about 10,935m (nearly…
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Where will the motorbikes and cars go when they are 'unsold' and have been in inventory for many years?
As new models go on sale, how will dealers handle the remaining inventory?
Flu epidemic
WHO issues new recommendations on wearing masks to protect against coronavirus
WHO recommends that people believe that wearing masks alone can prevent the acute pneumonia caused by the new corona virus is completely wrong. Let's see how to wear a m…
Health
Mysterious epidemic in Congo, Ministry of Health outlines response measures
The General Department of Preventive Medicine said it will coordinate with international organizations to assess the risk of disease outbreaks in Congo to propose approp…
Space science
How do astronauts weigh when floating in space?
On the International Space Station (ISS), astronauts use specialized Russian and American equipment to measure body mass instead of weight.
Photo library
Photos prove Bhutan deserves the title of 'the happiest kingdom in the world'
Bhutan considers
Scientific works
The first quantum gravity meter appears, revealing the secret map of the underground world!
The quantum gravimeter, a device capable of revealing the secrets of the underground world, has finally appeared on the stage of human science.
Health
To live to 200 years old, billionaire Bryan Johnson is testing a new method of longevity.
Johnson calls his goal of living to 200 'the most important revolution in the history of Homo sapiens'.
Health
Reasons for easy weight gain: Obesity has 'memory' and retains mechanisms in cells
Research reveals a molecular mechanism in fat tissue that makes people more likely to regain weight. The discovery helps explain
Animal world
Galapagos once exterminated invasive goats to save giant tortoises
Conservationists have deployed a series of measures to kill 140,000 goats in 7 years, helping the Galapagos giant tortoise recover.
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Why is hypertension getting younger?
Besides genetic factors, unhealthy lifestyle is also one of the causes of high blood pressure in many young people today.
Environment
How Vienna Prepared for a 5,000-Year Flood
The measures Vienna is taking to prepare for extreme rainfall could provide lessons for other cities dealing with flooding.
Space science
Successfully launched the EarthCARE satellite to probe the impact of clouds on climate
The EarthCARE satellite, launched from California (USA), is expected to orbit about 400km above Earth in the next three years with the mission of understanding the role…
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Discover ancient clocks that measure time using water
Before the invention of electronic devices, people used to tell time using water clocks, devices consisting of containers with lines and small drainage holes.