From Dennis Lane
A virtual-reality system to train people to navigate in the International
Space Station is a typical example of trying to deal with the symptoms rather
than addressing the causes
(3 November, p 24).
Surely a simpler solution would be to paint the wall of a module (including
fixed equipment) a distinctive and soothing colour to denote which way is
“down”. Tunnels and passageways could have one quadrant painted in that colour.
Hatches could be painted in other distinctive colours to denote “north”,
“south”, “east” and “west”.
Pretoria, South Africa
