History
The king's murder made the center of the Forbidden City clear of trees
In 1813, King Gia Khanh ordered all trees to be cut down in the center of the Forbidden City and not replanted.
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Environment
The city cut down tens of thousands of trees to save water
The city of Cape Town cuts down non-native trees because they consume so much water, about 55 billion liters a year.
Discover science
Physicists say they have finally solved the 'teapot effect'
The fact that the tea water drips and flows down the pot while pouring turns out to be more complicated than you think.
Animal world
What to do to save your own life when encountering a tiger?
Can tigers hurt people? However, in our country, tigers are extinct in the wild, so meeting tigers in the middle of the road is impossible.
Conquer Mars
NASA lost contact with Mars robots for two weeks
NASA will shut down most Mars rovers from October 2 to October 16 for safety reasons related to the red planet's position in space.
Archeology
Find out the 'alien force' that slows down the development of the planet
A team of scientists from the US and Japan has found traces of a series of ancient asteroids that hit the Earth during the Paleozoic, causing the Earth to become breathl…
Space science
Actor Tom Hanks turned down billionaire Jeff Bezos' offer to go to space
The actor thinks that spending $ 28 million to fly into space is not necessary.
Biology
Discovering a 10-storey honeycomb as big as a house, the villagers took it down to register a Guinness record
If you think that a honeycomb is only as big as a hand, you are wrong, this super hive must use an industrial crane to remove it.
Science Events
Upside-down rhinoceros research wins Ig Nobel Prize 2021
The experiment of hanging rhinos upside down to understand the effects on their bodies was one of this year's Ig Nobel Prize-winning studies.
Health
Find out how you can fight the aging process
A team of experts from 4 universities around the world has found a way to fight the aging process by killing old cells in the laboratory.
Health
Overturning the drowning person - the wrong first aid method
Doctor Nguyen Minh Tien, Deputy Director of the City Children's Hospital, recommends that first aid for drowning people by upside down is very dangerous because it can c…
Discover science
The Three Gorges hydropower dam is so large that when it is full of water, the Earth's rotation will slow down and the day-long period will grow
Although the change will be small, it is undeniable its influence on the Earth's rotation.
Biology
Warning of nanoscale accumulation in plant roots
New research says nanoplastics will slow down the growth of terrestrial plants and lead to nutrient deficiencies.
Space science
The metal '2.8 meteorite' struck the ground
The meteorite-like object containing rock and metal made an explosion that ranged 2 km away when frightened by locals.