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<p>[QUOTE="desertgem, post: 3105153, member: 15199"]If they are transmission electron microscopes, they only see through objects, Scanning electron microscopes bounce the beam off of the surface and thus are useable. I suspect yours are the first type. Actually both types can be used for cellular work, transmission for looking at objects inside cells ( myofibrils, gap junctions , DNA/RNA , etc. Scanning is used to observe the surface of the cells where receptor molecules , antigens, etc. are located. I have used both, but not with coins. I recommend a magnifier like below, either 7x or 10x. jim</p><p><br /></p><p><a href="https://www.amazon.com/BelOMO-Triplet-Loupe-Folding-Magnifier/dp/B00EXPWU8S/ref=sr_1_1?s=office-products&ie=UTF8&qid=1528824642&sr=1-1&keywords=belomo+10x+triplet+loupe" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.amazon.com/BelOMO-Triplet-Loupe-Folding-Magnifier/dp/B00EXPWU8S/ref=sr_1_1?s=office-products&ie=UTF8&qid=1528824642&sr=1-1&keywords=belomo+10x+triplet+loupe" rel="nofollow">https://www.amazon.com/BelOMO-Triplet-Loupe-Folding-Magnifier/dp/B00EXPWU8S/ref=sr_1_1?s=office-products&ie=UTF8&qid=1528824642&sr=1-1&keywords=belomo+10x+triplet+loupe</a>[/QUOTE]</p><p><br /></p>
[QUOTE="desertgem, post: 3105153, member: 15199"]If they are transmission electron microscopes, they only see through objects, Scanning electron microscopes bounce the beam off of the surface and thus are useable. I suspect yours are the first type. Actually both types can be used for cellular work, transmission for looking at objects inside cells ( myofibrils, gap junctions , DNA/RNA , etc. Scanning is used to observe the surface of the cells where receptor molecules , antigens, etc. are located. I have used both, but not with coins. I recommend a magnifier like below, either 7x or 10x. jim [url]https://www.amazon.com/BelOMO-Triplet-Loupe-Folding-Magnifier/dp/B00EXPWU8S/ref=sr_1_1?s=office-products&ie=UTF8&qid=1528824642&sr=1-1&keywords=belomo+10x+triplet+loupe[/url][/QUOTE]
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