the threshold of the visible

stop. turn around slowly. now look again.

01.-
02.-
03.-

November 2, 2011 at 9:15am
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Active Versus Passive Homing. Hal Hellman, Controlled Guidance Systems, Howard W. Sams & Co., 1967.  Via the always rewarding DIAGRAM

Active Versus Passive Homing. Hal Hellman, Controlled Guidance Systems, Howard W. Sams & Co., 1967.  Via the always rewarding DIAGRAM

Notes

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