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Sound Waves get your wash clean, claims Robert Bosch of Stuttgart, Germany. This seven-pound machine works on principle of auto horn. Hooter must sound for five minutes. Cost is $32.
Why Astrophotography Is as Much Patience as Skill
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Astrophotography requires patience because capturing clear images of
distant objects means long waits, repeated adjustments, and working around
unpredict...
1 week ago
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