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invisible ink pen + glasses.
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Can two protons be made "invisible" to each other by putting electrons between?
Started by McKayBoard Physics, Astronomy & Cosmology |
Replies: 5 Views: 6553 |
22/09/2014 10:42:44 by evan_au |
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How long must a prism-shaped corridor be to render a light-source invisible?
Started by cluelessBoard General Science |
Replies: 2 Views: 4228 |
27/01/2014 17:24:09 by clueless |
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Can foreign materials be made immuno-invisible?
Started by thedocBoard Physiology & Medicine |
Replies: 1 Views: 3811 |
21/02/2013 19:34:04 by CliffordK |
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Could asymptomatic people have invisible organ damage? |
Replies: 1 Views: 2141 |
04/08/2020 19:37:57 by chiralSPO |
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Are some galaxies moving so fast as to be invisible?
Started by thedocBoard Physics, Astronomy & Cosmology |
Replies: 9 Views: 6671 |
17/03/2012 23:21:37 by Soul Surfer |