The picture shows a 3.7-m diameter liquid mirror at Laval University. The liquid is mercury. There are no detectable mercury vapors in the air because a thin transparent layer of oxide covers the surface. Credit: Guy Plante (Laval)
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The picture shows a 3.7-m diameter liquid mirror at Laval University. The liquid is mercury. There are no detectable mercury vapors in the air because a thin transparent layer of oxide covers the surface. Credit: Guy Plante (Laval) |
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