Omnidirectional Shutterable Sieve
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Index Entry
Omnidirectional Shutterable Sieve:
"We need an omnidirectional shutterable sieve
where we can increase or reduce the magnitudes of our omnidirectional valve openings.
"Since we wish to be able to see in any direction
and likewise be able to obscure in any direction,
we recognize that it is difficult to make an opaque wall transparent
but it is very easy to opaque a transparent wall
by curtaining and shuttering."
Citations
- Environmental Controls (2), 31 May'74
