ew hy

” <BELOOGs

And enother thing, s balloon which hangs in ane place tends to
exhaust the air around it.

I think you'd be recirealating air

after awhile {f it was a constant-level balloon sitting in the
eloud.

The ciher alternative ia to de the sampling as you go

up; in this case you will eveld any posaeibility of sitting in
your own cloud of already saapled air. Se you woald need a

little fester device for a moving balicon..
EISEHBUDs

Others have sampled air through an electrostatie precipitater
with about ten peunds of equipment at a cost of senewhare
around $200.

HOLZMABs

Will, it seess to me that the probles isn't focused too well
here,

Youfre not really trying te follow thie elaud, are

yous you're trying to find out how much activity is up there

and what ia the rate at whieh it falls eut—-ian't that the
real problems here?
KELLOOGs

I tried toy if I'd bean writing, I'd heave made a new section
heeding. fhe Ciret section heading was, “Following the debris
te deternine the density in space over a peried ef tine"; the
second was, “The possibility ef using balleons te bring back
eamples*.,

I consider this as really two experinents, though.

uy flrat interest would be the first that I mentioned; that is,
using sone method for tracking the density of debris, regardless
ef what it is made of,

DUE ARCHIVES

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