Animal world
Why is the cheetah the fastest animal on the planet?
Scientists discovered that cheetahs can run faster than 100km/h thanks to their appropriate body weight.
PER
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Topic archive
Articles about PER
10,159 published items.
Scientific application
Viettel Post uses 200 robots to distribute goods instead of people: Output increases 3.5 times, personnel reduces 60%
This is the first step in Viettel Post's journey to transform into a professional, green and efficient logistics company.
Environment
The North is about to welcome a wave of cold air, causing freezing rain, will the temperature drop sharply?
The North is experiencing days of drizzle and humidity. This weather pattern will last for the next few days. This area is forecast to welcome cold air and turn to cold…
Environment
The La Nina phenomenon may replace El Nino this year
The US National Weather Service predicts El Nino will weaken in the next few months, giving way to the La Nina phenomenon that could cool global temperatures.
Photo library
Old photos of the Qing Dynasty: Close-up of the 'supercar' of rich aristocrats, a symbol of status and family at that time
Old photos are colored by modern technology to help posterity have a more realistic view of a vehicle of the Qing Dynasty aristocracy.
Scientific works
Ghost particle detector at a depth of 1,600m
The research team at Fermilab will observe ghost particles traveling 1,287 km between detectors, thereby uncovering the mysteries of the universe.
Scientific works
Saudi Arabia will build a 2km high skyscraper
The 2km high skyscraper project will be built north of the capital Riyadh despite many design challenges and huge costs.
Scientific works
Japan surprised everyone by building the world's largest 'cosmic' mystery decoding project
To carry out this project, Japan had to hollow out a mountain. Once completed, this megaproject will be unlike any existing construction.
Scientific works
Vietnam's 'super bridge' sets a Southeast Asian record: Total capital is nearly 5,000 billion, reaching the top 10 in the world!
To date, 14 years after its inauguration, this bridge across the gentle Hau River still holds the above two records.
Scientific works
Designing the tallest earthquake-resistant building in Japan
The 325m-high Mori JP Tower is equipped with many systems to help reduce strong shaking and can withstand earthquakes up to 9 degrees.
Science story
The truth about the story of 'boiled frog'
According to scientific experiments, the story that frogs do not recognize danger and do not run away when slowly heated is incorrect.
Science story
'The loneliest person in the world' lived alone for 25 years in a 'ghost town'
Mr. Pablo Novak, 93 years old, returned to live in the ghost town of Epecuen (Argentina) for nearly 25 years; no one else was here after the town was submerged in floodw…
Science story
Experiment to prove 'Flat Earth' in the 19th century by British writer
British writer Samuel Rowbotham once conducted the 'Flat Earth' experiment at Old Bedford River, the water channel ran straight and unobstructed for nearly 10 km.
Science story
King Louis XIV's Great Cipher System has given decoding experts a headache for more than two centuries
For centuries, the Great Code stood like an unassailable fortress, leaving even the most skilled codebreakers confused and even at a loss.
Science story
Astronaut Bruce McCandless II - The first person to fly freely in space
40 years ago, Bruce McCandless II performed the first headless spacewalk, creating a milestone in the history of space exploration.