Comment on Pens in Space
Don’t felt tip pens work by capillary action?
That do. The failure comes if the spacecraft use lower air pressure, then the ink is pushed out of the pen by the pressurised gas in the ink
The same thing causes some pens to leak in aeroplanes.
psud@aussie.zone 1 day ago
That do. The failure comes if the spacecraft use lower air pressure, then the ink is pushed out of the pen by the pressurised gas in the ink
The same thing causes some pens to leak in aeroplanes.