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Turn cats into phones, the truth is incredible but true in history
In 1929, two researchers at Princeton University, USA conducted experiments transforming cats into startling phones.
PER
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Topic archive
Articles about PER
10,159 published items.
Archeology
2 million-year-old super rare frog fossils discovered in Argentina
According to AFP, the findings were published by the science and technology agency of La Matanza National University, Argentina.
Space science
Black holes may have grown differently when the universe was 'younger'
Black holes can grow in two ways, they will merge with other black holes or they devour surrounding materials.
Space science
Discover the idea of building a particle accelerator on the Moon
Upon further study of how the universe works, particle physics experiments are becoming more complex than ever.
Space science
What does SpaceX use to send astronauts to the space station?
It is not the newer chips or a polished operating system, the old CPUs and the new Linux operating system are the factors that bring astronauts to outer space.
Space science
The super typhoon on Saturn has an unexpectedly perfect hexagon
A giant hexagonal storm appears on Saturn. Until now, scientists have not been able to explain.
Biology
'Terrific grasshopper storm' blind sky during the day in India
The Delhi metropolitan region is preparing to cope with locusts, while farmers in northern India play loud music and car horns to chase the desert grasshoppers of millio…
Biology
8 types of weeds thought 'impermanent' were incredibly valuable
There are weeds growing everywhere, wisely used to become the most valuable food or medicine.
Biology
Why desert grasshoppers can not kill?
After devastating crops in East Africa and the Middle East, grasshopper clouds continued to move to many areas, forcing many aircraft to change direction.
Animal world
The super rare parrot is causing scientists to give up 'why is it going to go extinct'?
For a nocturnal bird, this parrot is having an enormous evolutionary bug, making it harder to survive and once considered extinct.
Scientific application
Principles and how to make lemon battery
Only with the simple principle that you can generate electricity from lemons.
Environment
Scary underground effects of heat: 'Disable' important body functions
Humans are facing a number of dangerous climatic features such as extreme rain / heat and more ...
Environment
Expert helpless, unknown reason 50,000 years old lake turned pink
Lonar lake water in India has changed to pink, scientists and authorities do not know the reason.
Environment
Rains pour 1,000 tons of plastic into the United States each year
Every year, the equivalent of 300 million micro-bottles of rainfall falls to national parks and wilderness areas in the western United States.
Photo library
Hanoi train - a vivid memory of a period of origin
Citizens of Hanoi have long no longer heard the tinkle of tram lines running around the city center. The train has become a beautiful memory for generations of Hanoians.