What is the advantage of using a plane mirror in optical testing?
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If we put a mirror millions of light years away and reflected earth, could we see what earth looked like millions of years ago?
Started by thedocBoard Physics, Astronomy & Cosmology |
Replies: 9 Views: 22671 |
20/05/2018 00:53:37 by raf21 |
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Chiral life concept - creating mirror image synthetic life?
Started by Jarek DudaBoard Plant Sciences, Zoology & Evolution |
Replies: 10 Views: 11183 |
30/01/2017 22:52:21 by Jarek Duda |
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Do All Planets (inc Exo Planets) Orbit Their Star In The Same Plane As Ours ?
Started by neilepBoard Physics, Astronomy & Cosmology |
Replies: 3 Views: 2787 |
02/08/2020 23:12:06 by evan_au |
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If I run at 10km per hour inside a plane traveling at 800km an hour what speed am I moving at?
Started by thedocBoard Physics, Astronomy & Cosmology |
Replies: 13 Views: 9165 |
23/12/2017 11:46:35 by Bill S |
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Is it time to ban "Gain of Function" testing? |
Replies: 1 Views: 1939 |
26/04/2020 10:27:31 by evan_au |