• Deconceptualist
    link
    fedilink
    English
    arrow-up
    11
    ·
    25 days ago

    I would dispute the listing of antimatter as a material. Hypothetically it could be one, but it doesn’t exist that way on Earth. Humans generate plenty of positrons for things like imaging (PET scans) but those don’t stick around. We don’t create anywhere near enough anti-hydrogen atoms to be seen or used on any macroscopic scale.