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To: knarf

Anything is possible but the cost of trying to make lenses out of material almost as hard as diamond would be prohibitive.


6 posted on 09/10/2014 7:21:51 AM PDT by Durus (You can avoid reality, but you cannot avoid the consequences of avoiding reality. Ayn Rand)
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To: Durus

Man made sapphires used for jewelry are sometimes given a coating of diamond to make them more durable and give them a better appearance. Sapphire is better than what they use now for displays, but it will still scratch.


9 posted on 09/10/2014 7:35:17 AM PDT by Moonman62 (The US has become a government with a country, rather than a country with a government.)
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