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Awesome Opera Stage Designs
sandipan S
sandipan S May 06, 2013
Awesome Opera Stage Designs

I've seen these sensors...

Often 1
Occasionally 0
Rarely 1
Never 5
What is it? 5
1 Comment     12 Tags
Similar Photos: laser-based vehicle detection Arlington National Cemetery now has a great new way/ app for visitors - I tried this for the first time at the beginning of the year. Gate of University library which requires student's ID card to get in. This gate has sensor that react to ID card.

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