Which they phased out in favour of the the pen, because graphite fragments are not something you want floating about and into sensitive equipment. Least so the story goes.
Well, compared to earth-bound tech, things in orbit (that need to stay in orbit) need to be tad more finely tuned. Even minor disturbances can cause harm ... least so i've understood.
Russians: finding simple solutions to complex answers since 1547!
Which they phased out in favour of the the pen, because graphite fragments are not something you want floating about and into sensitive equipment. Least so the story goes.
Since when were Russian equipment sensitive though?
Well, compared to earth-bound tech, things in orbit (that need to stay in orbit) need to be tad more finely tuned. Even minor disturbances can cause harm ... least so i've understood.
I'll just leave this here. Although I suspect everyone here was already aware of it: Youtube.com