"(The lenses are actually bits of abrasive grit intended to roll around in tumblers that smooth-off metal parts.)"
seriously
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| Author: | Hans Durstling [ Mon Apr 14, 2014 12:30 pm ] |
| Post subject: | Interesting article about microscopes |
http://www.economist.com/blogs/babbage/ ... icroscopes (I wonder whether the lens is moissanite or corundum) cheers all Hans Durstling Moncton, Canada |
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| Author: | Facetnator [ Mon Apr 14, 2014 12:58 pm ] |
| Post subject: | Re: Interesting article about microscopes |
"(The lenses are actually bits of abrasive grit intended to roll around in tumblers that smooth-off metal parts.)" seriously
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| Author: | Stephen Challener [ Mon Apr 14, 2014 4:19 pm ] |
| Post subject: | Re: Interesting article about microscopes |
The article says borosilicate or corundum. That is a big 'or'. |
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