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Close-up of the train wheel replacement process
The quality of train wheels plays an important role in ensuring safety throughout the operation of the train.
Flat
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Articles about Flat
118 published items.
Animal world
Water snakes in Vietnam seem harmless but carry deadly venom
In Vietnam, there is a species of snake known by the nickname
Archeology
Ghost ship 'appears' in coal mine after 1,700 years missing
The ghost ship is 20m long, has a flat bottom like a barge and could be an important treasure revealing the famous Roman capital of Viminacium.
Discover science
Mysterious wonders of the world
Discover the majesty of nature through 20 little-known wonders of the world.
Discover science
The earth is round but why do we only see it as flat?
In ancient times, people believed that the Earth was shaped like a flat, round or square disk, and to this day some people still believe in the Flat Earth theory.
Discover science
Strange patterns on the world's largest salt flat
The Salar de Uyuni salt flats in southwestern Bolivia consist of extremely large honeycomb cells, resulting from the slow churning of salt water in the soil.
Environment
'Mysterious light column' in the sky of Hanoi has appeared in many places, what phenomenon is this?
At dawn on May 19, a strange light column appeared in the sky of Hanoi. Images of such light column(s) have also been recorded in many places around the world, so how is…
Animal world
Labrador retrievers have a strange gene that makes them always hungry and fat easily
Research identifies a genetic mutation that increases the risk of hunger and obesity in Labradors and Flat Coated Retrievers.
Scientific application
Should you continue driving when your car has a punctured tire?
Most drivers affirm that if their car has a punctured tire, they should not continue driving because driving with a punctured tire can cause damage to the wheel.
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.
Space science
Is the Universe spherical and shaped like a soccer ball?
If people can go out and observe the Universe, then what shape will the Universe have and will the Universe have limits?
Archeology
400 year old prototype of ninja weapon discovered
Experts found many flat stones with sharp edges and clay balls that are likely to be precursors of later ninja weapons.
Science Events
The personal flying saucer has successfully taken off
The Zero single-seat flying vehicle with its unique round and flat design was tested for the first time in hovering for a total of more than 4 minutes.
Space science
The US designed a flying saucer to explore the Moon
MIT's flat circular robot takes advantage of the Moon's natural electric field to levitate, consuming very little energy when operating.
Environment
Turkey's second largest lake disappears due to climate change
Salt Lake Tuz, which has an estimated 250 million tons of salt reserves, is drying up due to climate change and agricultural development.