>One thing that is possable is checking the sizes of particals with the >darkfield. If we want a uniform size partical and if it is viewed to be >many different sizes under the darkfield then we know that something >has to be changed. If we know that we need .001 and we know that it's >not possable to see .001 under the m-scope but we see particals then >we know that they aren't .001. So we take a picture filter and look again.
Good point. If you have a filter that that cuts off at say 0.05 microns, then you should filter out all particles that are resolvable in the microscope. However, you have to make sure you are not also filtering out smaller particles as well. Since the CS particles are charged, you must insure that they are not retained on the filter due to the charge, only due to their size. I think someone already talked about this. The CS particles carry a positive charge, correct? Then you must insure that the filter does not carry a negative charge since opposite charges attract. > Now here's something else to consider. What would happen if a person >used inferred light? What would happen to the ability to view partical size >then? I think you are referring to infrared light, correct (I always have to look this word up myself because I have a hard time remembering how to spell it)? This is light that can't be seen by the human eye. Furthermore, infrared light has longer wavelengths that visible light. Therefore, if you built a special microscope to view with infrared, assuming you had something like a night vision scope to visualize the infrared light, the microscope would not resolve particles as small as those which can be resolved in a standard light microscope. The shorter the wavelength of light, the better the resolution. It is unfortunate that our eyes can't see in the ultraviolet region of the spectrum. Then we could build light microscopes with higher resolution capabilities. In fact, ultraviolet light is used for fluorescence microscopy. In this case you use a special stain on the specimen that will fluoresce with visible light when illuminated with UV. In order to make this work, your condenser must be made from quartz (expensive) because glass absorbs UV (that is why you don't get sunburned when driving in a car all day even if the sun shines on your skin through the windows). Jeff La Favre -- 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: silver-list-requ...@eskimo.com -or- silver-digest-requ...@eskimo.com with the word subscribe or unsubscribe in the subject: line. To post, address your message to: silver-list@eskimo.com List maintainer: Mike Devour <mdev...@id.net>
