Air

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Articles about Air

2,472 published items.

Nearly die with a free fall with
Science story

Nearly die with a free fall with

On August 16, 1960, the world stood still when he saw the free fall back to the ground of US Air Force Colonel Joseph Kittinger from a height of 31.3 km.

December 15, 2018
Development process of electric fan
Science story

Development process of electric fan

At the time of the industrial revolution, electric fans were a great invention and important to everyone. Over time, they are improved smartly and more conveniently.

December 15, 2018
John Paul Stapp - Man
Science story

John Paul Stapp - Man

John Paul Stapp personally participates in a test of body tolerance by sitting on a rocket-mounted sledge.

December 15, 2018
16-year-old student conquered the century problem
Science story

16-year-old student conquered the century problem

More than 300 years ago, the Newtonian asked the question: How can humans accurately calculate the trajectory of an object moving through the air? Objects moving in the…

December 15, 2018
The secret of the first Russian astronaut
Science story

The secret of the first Russian astronaut

Valentina Tereshkova is female Major General Air Force - Hero of the Space Pilot, Associate Doctor of Science - Engineering, Soviet Supreme Soviet Representative, Vice P…

December 15, 2018
Meneleteep: Courage to fly into the air (Part 2)
Science story

Meneleteep: Courage to fly into the air (Part 2)

When the age was beyond 50 Menergies still retained the enthusiasm for scientific discovery, he wanted to fly into the air to study the atmosphere of the upper atmospher…

December 15, 2018
Cold weather may increase the risk of heart attack
Medicine - Health

Cold weather may increase the risk of heart attack

The incidence of heart attacks increases when the air temperature and pressure in the air are low, the wind speed is high, the illumination time is shorter and is partic…

December 15, 2018
Many people suffer from ENT due to air pollution
Medicine - Health

Many people suffer from ENT due to air pollution

The World Health Organization (WHO) in May announced that 90% of the world's population is breathing polluted air. Each year about 7 million people die from exposure to…

December 15, 2018
Why sleep in cars is deadly?
Medicine - Health

Why sleep in cars is deadly?

Many people have a habit of taking a nap or taking a short nap in a car. According to Gulfnews, General Department of Crime Security, Dubai Police, recommends that this…

December 15, 2018