• switchboard_pete@fedia.io
    link
    fedilink
    arrow-up
    14
    ·
    28 days ago
    • Decay of radon-222 isn’t the only way lead can be created, just a way
    • The U238 that started the chain could pre-date the earth
    • Half life is only when half of the sample has decayed, but less than half could have decayed into lead