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How to measure how long Fidget Spinner rotates without a clock
Why? Because obviously the watch is not available but the laser device and light sensor are sold in the market.
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Discover surprising science, unexplained phenomena, materials, history, nature and fascinating facts that reveal how the world works.
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40,619 published items in this category and its subcategories.
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Spectacular survival cases in the 19th century
These rare surviving stories show the resilience and hidden power of people in the face of adversity.
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Survival skills when buried alive in coffins
Honestly, have you ever dreamed, or thought of your case
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How to help you kill mice quickly without taking medicine
Mice are the most annoying pests. They not only destroy furniture, pollute food and drink, but also cause many dangerous diseases.
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Why is ice water white, others clear?
Why does the phenomenon of some ice cubes have a white color while others are as clear as mirrors?
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Top 10 most terrifying intercontinental missiles in the world
Of the 10 most dangerous intercontinental missiles in the world voted by Military Today, American Trident II is the most sophisticated, while Russia dominates with 5 cat…
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The reason why power lines are dimmed
Power lines are dimmed when installed on electric poles because they are mass and attracted by the gravity of the Earth.
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It turns out that alcohol is a
If you know these uses of alcohol, you won't have to waste time and effort anymore.
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Discover the 168-year mystery of the largest volcanoes in Hawaii
Scientists at the Australian National University (ANU) have conducted a study to help decipher the mystery of the past 168 years on how to form the largest and most powe…
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So this is why many people swear when they fight
It turned out there was an extremely scientific reason behind swearing when there was a scandal.
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Things you don't know about MMA - 'martial arts' have just caused Chinese martial arts to fail
Chinese Tai Chi masters were defeated by amateur MMA fighters within 10 seconds. What is MMA that is ultimately so powerful?
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The shape of your chin tells you more than you think
Recently a study published in the journal Human Biology showed that: The shape of the chin can reveal many things about your childhood.
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Have you ever wondered: Where do mosquitoes go?
Mosquitoes are not as gentle as cockroaches, they especially like our blood. And since they can fly (cockroaches can also fly only a short distance), they are more annoy…
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5 utopian phenomena can happen under a physical perspective
Many strange phenomena can still happen without going against the laws of modern physics.
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For the first time know the mysterious arrangement of crystals
By using new techniques, the team showed that the crystal arrangement force is Van der Waals force. This is a kind of molecular force produced by the polarization of mol…