1. kestrel says

    @Marcus, #1: well, you know, if you hold really, really still….

    Not that I would know from personal experience. It’s just that I’ve observed trees rarely move.

  2. Ice Swimmer says

    Now, if we could have bones made out of cellulose, hemicelluloses and lignin instead of hydroxyapatite and some collagen… The density of the materials that wood mostly consists of is about half of that of hydroxyapatite.

  3. StevoR says

    “This oak tree and me, we’re made of the same stuff.”
    ― Carl Sagan


    Exploded remnants of long dead supermassive superluminous stars.Plus ash blown away from the nucleosynthesis of red giants.

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