Health
What is the heartbeat called normal?
It has been a long time when the heart rate is measured by placing two fingers on the neck and watching the clock. Now it's easy for an app on a smartphone or just to sa…
PER
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Articles about PER
374 published items.
Health
American experts warn of 'permanent chemicals' that cause cancer in food
The chemical group mentioned is a full name, per- and polyfluoroalkyl (PFAS). PFAS used to be very popular in the United States starting in the 1940s, thanks to many pre…
Oceanography
Starfish can walk at a rate of 1m / minute, and this is how they move
A mature positive starfish can move at a rate of 1m per minute.
Environment
The whole Mekong Delta is subsiding at a rate of nearly 2.5cm per year
In the West Sea region (Ca Mau peninsula) previously had a high encroachment rate to the sea, now 70% of the area has retreated.
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Amazing things about the human body
People with about 50 trillion cells are an extremely complex living organism, containing many unexplored mysteries.
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The device that produces 38 liters of clean water in an hour from thin air will be a lifesaver for the future human
With new material and manufacturing technology, this water harvesting device can produce up to 38 liters of water per hour, even in the driest areas.
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Things you didn't know about Bahrain kingdom
Coming here, Vietnam U23 team will have a confrontation with Bahrain. So what do you know about this rival country?
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Surprise with unbelievable statistics about death
Death can happen anywhere and can be in ways that people cannot expect. 150 people died per year because of falling coconuts, 600 deaths / year for masturbation ... are…
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Bitconnect - What is the most popular Vietnamese keyword search on Google?
Bitconnect offers a very high interest rate (over 30% per month), much higher than the interest rate of normal financial trusts (10-15% per month).
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90% of the world's data has been created over the past 2 years
Currently, every day the world is generating about 2.5 quintillion bytes of data, which is still growing.
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Interesting history of toilet paper
People 's baths in the past often depend on their social status and whereabouts. Wealthy people often use soft wool or soft cloth to wash, instead of toilet paper.
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Which country is the most lazy person in the world?
This study is based on the database of users of the Argus application on their phones, designed to monitor daily activity.
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Foreign researchers have figured out the reason why Vietnamese students always achieve extremely high scores in examinations
Vietnam is one of the most confusing cases in the education sector: A low-income country that produces students who do well on international standardized tests no less t…
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The facts you don't know about IQ
Poverty makes it difficult for you to achieve good results in IQ tests. Meanwhile, the average IQ of a country also affects GDP per capita.
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Illusion of flying helicopters with stationary propellers
The phenomenon of hovering helicopters above the takeoff yard, flying higher and higher while the propeller almost stood still completely stemming from the shooting spee…