Can a Fresnel lens melt tungsten, a metal with a melting point over 4000°C?

Fresnel lens vs. Obsidian

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Converting water into hydrogen is so easy - How to make a simple hydrogen generator!!!

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The mesmerizing farm machinery of the "human speed bump"

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Apollo 11’s Moon Landing: Insurers Refused to Cover the Astronauts—So the 3 Astronauts Had to Come U

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Beautiful woman kissing

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How many would you be willing to take?

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Mexican cannibalistic tribe: They not only cook and eat intruders, but even their own people!

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Men’s Speed Bump: Mechanical 11.9

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Bikini Bottom really exists in the world! Where is Bikini Beach? How are tropical coral reefs formed

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The painstakingly cultivated E. coli all died—thinking of tossing my thesis defense into the incubat

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How painful is it for a Japanese person to commit seppuku by slashing their abdomen in a cross shape

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“So this is why you always go to the beach?!”

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Which sex position can help last longer? Doctors analyzed data from 1,900 people.

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Introduction to the Wasteland-Style Long-Tail Boat

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What happens if a bullfrog meets a leech?

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Everyone should learn CPR—this life-saving skill can make all the difference in a critical moment!

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How does a stump grinder clear tree stumps?

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Caught four buckets of eels in a pond—boss is all smiles! (Part 2)

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The Fastest Men In The World

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A Certain Scientific Railgun

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