>I called a microscope manufacturer last night. The fellow was very gentle >with someone as unknowledgeable as me. He took the time to explain >magnification, color spectrums, contrast and many other things that were >probably over my head. I was trying to figure out how little I could spend >for a basic microscope that would allow me to begin to see bacteria. I >figured all I have to do is get myself some bacteria, check to see if they >are alive in the microscope, add some CS and watch 'em die. At least it >would be a start. I learned that most bacteria are pretty hard to see. >Magnification of 400x or more can be required, and magnification is only >one consideration. Just magnifying something is rarely enough to allow one >to see it and distinguish its basic characteristics. A microscope good >enough to begin doing the kind of work we're interested in is apparently >going to cost at least $4,000. That's a bit steep for my budget. I asked >if I could expect a good high school to have that kind of a microscope. >Unlikely. Perhaps a university would have one, depending on the level of >sophistication. So, I guess I need to see what local universities have a >good microbiology program and good equipment. Seems like CS could be a >great school project and worthy of an A grade to some student. Of course, >with five kids, I don't have much time for taking microbiology classes and >doing research. On the other hand, this topic is really getting my >attention at the moment. Microbiology as an academic subject never >interested me. As a practical solution to an immediate problem it seems >like a wonderful discipline.
>I don't know where I'm going to go with this, but I have a few ideas. I'll >keep you all informed as I take steps or make progress. Thanks to everyone >else who is doing the same. Bob; Go to your local Radio Shack and tell them you want to order a tasko microscope. I don't have the part number but if you'll drop me a line in 2-3 days I'll get it for you. I believe the powers were 600x 100x and 60x. You can see bacteria at the 60x but real small. They're cheap plastic scopes but they get the job done. You'll probally have to have a better light than what comes with them. Another cute thing about them is they have a projector viewing screen. You'll also want to order a few glass slides because it comes with plastic slides. For the bacteria you can order it from Berkshire. berkshire-bio 1-800-462-1382 http://www.berkshirebio.com/store.html For paramicium it costs 15 shipped! They also have euglena! Take Care Reid -- The silver-list is a moderated forum for discussion of colloidal silver. To join or quit silver-list or silver-digest send an e-mail message to: [email protected] -or- [email protected] with the word subscribe or unsubscribe in the subject: line. To post, address your message to: [email protected] List maintainer: Mike Devour <[email protected]>
