• BarqsHasBite
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    1 year ago

    Huh I didn’t know antimatter was a completely confirmed thing.

    After making a thin gas of thousands of antihydrogen atoms, researchers pushed it up a 3-metre-tall vertical shaft surrounded by superconducting electromagnetic coils. These can create a kind of magnetic ‘tin can’ to keep the antimatter from coming into contact with matter and annihilating. Next, the researchers let some of the hotter antiatoms escape, so that the gas in the can got colder, down to just 0.5 °C above absolute zero — and the remaining antiatoms were moving slowly.

    The researchers then gradually weakened the magnetic fields at the top and bottom of their trap — akin to removing the lid and base of the can — and detected the antiatoms using two sensors as they escaped and annihilated. When opening any gas container, the contents tend to expand in all directions, but in this case the antiatoms’ low velocities meant that gravity had an observable effect: most of them came out of the bottom opening, and only one-quarter out of the top.

    • @[email protected]
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      311 year ago

      Not only does it exist, but bananas give off a fair bit of antimatter due to their decaying potassium isotopes.

      Allegedly, im not smart enough to verify it

    • @[email protected]
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      271 year ago

      Antimatter was first observed physically back in 1932. A positron, more specifically. Its existence has been confirmed, and accepted, for ages, and some of our technology already operates using antimatter to do its tasks.

    • @[email protected]
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      171 year ago

      anti-matter? ya, we have been observing it for quite a while (testing is difficult for reasons), it naturally accumulates in parts of the Van Allen belt.

      Dark matter on the other hand is still completely up for question

    • Flying Squid
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      161 year ago

      The Large Hadron Collider wouldn’t work if antimatter wasn’t confirmed.

          • @[email protected]
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            41 year ago

            No, it either does proton-proton collisions or heavy ions, both regular matter. At TeV energies the added energy from anihalating matter with antimatter isn’t that much of a contribution anymore that it would justify the added complexity.

            Its predecessor collided positrons with electrons though. But the LEP was more for precise refinement of known interactions and not so much about reaching the highest possible energies.

          • El Barto
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            11 year ago

            Sure, but it doesn’t just collide protons and antiprotons, does it?