To the extent that they can wreck careers, all they need do is wince:
But the day may come that they can’t wreck careers any more.
These are the molecular machines inside your body that make cell division possible. Animation by Drew Berry at the Walter and Eliza Hall Institute of Medical Research.
Every day in an adult human roughly 50-70 billion of your cells die. They may be damaged, stressed, or just plain old – this is normal, in fact it’s called programmed cell death.
To make up for that loss, right now, inside your body, billions of cells are dividing, creating new cells.
And cell division, also called mitosis, requires an army of tiny molecular machines.DNA is a good place to start – the double helix molecule that we always talk about.
This is a scientifically accurate depiction of DNA. If you unwind the two strands you can see that each has a sugar phosphate backbone connected to the sequence of nucleic acid base pairs, known by the letters A,T,G, and C.
“Your Body’s Molecular Machines” at Veristasium
A reader comments: Veritasium says reasonable things until the last 10 seconds when we hear “We will create nanobots able to work better than the natural ones to make molecular repairs to your body.” Honestly, how likely is that? Would anyone prefer an artificial leg to a real one?
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