Moon Dust
nDust builds up
on furniture, buildup proportional to time since last dusting
nThree assumptions:
nStarting
conditions
nRate of dust
accumulation constant?
nNo tampering,
e.g. removal of dust
nMoon is susceptible to cosmic dust
nWill collect
on all sizable bodies - moon, earth, etc.
nScientists can
use high-altitude balloons to measure amount of cosmic dust currently falling
nNo cosmic dust found on earth of any significance