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The reason for manhole covers is usually round
The manhole cover in a round shape allows easy installation, transportation as well as preventing risk of leakage.
Shape
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Articles about Shape
730 published items.
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Why are round pizza in square boxes?
The square box is easy to assemble, transport, and create more space inside to contain spices and aromatic leaves.
1001 mystery
Strange light causes confusion in the sky of China
Strange light and shape changes constantly appear in the sky of Hangzhou City, Zhejiang Province, China causing confusion among people.
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The scientific facts about snow are few people know
In fact, snow does not have the pure white as we often see it. can you believe?
New technology
'Super elastic' material changes shape according to temperature
The newly created liquid crystal elastomers can form many different shapes and move from one form to another under the action of heat.
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An exotic chicken egg, the shape is no different ... feces
Ordinary chicken eggs are oval but recently, Gea Berculo - a rancher in Gelderland, Netherlands, found a strange egg, shaped like a stool.
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What does sadness look like in the brain?
You know how sad feeling is? And until recently, neuroscientists have discovered a little more about how melancholy emotions are from a scientific perspective.
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What do Asian countries eat during the Mid-Autumn Festival?
Talking about food during the Mid-Autumn Festival, not to mention the moon cake. Let's go around Asia to see which countries have interesting mooncakes.
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Explain why some seabirds have pear shapes
According to Auk: Ornithological Advances magazine, British scientists explain why the eggs of some seabirds are pear-shaped.
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Great technology comes out - paper can also bend, fold, shape by order
Do you believe it, paper - the old and so-so-familiar material that is familiar to us every day will become extremely interesting as they can bend, bend, shape according…
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How will our personality change after 50 years?
Character is a characteristic characteristic of people. Unlike the appearance or shape of a person, the personality that is perceived as stable does not change over time.
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Find hidden alien spacecraft under the Bermuda Triangle?
A treasure hunter has just discovered a surprisingly unexplainable thing hidden deep beneath the Bermuda Triangle Triangle.
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Why are old grenades grooved while some are completely sleek?
When thinking of the shape of a grenade, many people would think of images of grooves running along the grenade body.
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If you own a fingerprint of this type, you are born with a rare talent
Through fingerprints, we can quickly guess the personality of a human being.
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The shocking details of the
So far, Qin Shihuang's appearance is one of the controversial topics among experts.