Customer Reviews 
problem fit on antique Healthmate
2007-03-03The filter is fine, but required some aggressive work with a hammer to make it fit my antique model. Compared to the previous replacement filter, this one had metal where the old one had fiberboard. I suppose this would be an upgrade, except that the designer apparently didn't consider the placement of some bolts on my 15 year old Healthmate; hence the need to put some serious dents into the filter. The previous replacement filter had the same problem, but the fiberboard had more give to it. It is my unscientific impression that the new filter is not as quiet out of the box as the previous replacement filter was (based on my 5 year old memory), but maybe it's just my machine getting older; or different room acoustics. Perhaps another owner can offer a second opinion.
Electronics Articles
Digital camera batteries
Batteries are vital for all photography and makiing sure that you have a spare set is essential if you intend to take alot of pictures. Print digital also recommend that when deciding upon a digital camera keep in mind what sort of batteries it takes. Does it take rechargeable batteries, are the batteries built and do you have to plug it into the mains, or does the camera only take standard batteries, if so then it can become exspensive if you are a keen photographer and use the camera alot.
There are three types of rechargeable batteries: NiCD, NiMH and Lithium-Ion. Nickel Metal Hydride are the most popular rechargeable batteries at present. They hold more charge than their counter parts NiCD and don't suffer from memory effect. The one small down fall of these batteries is that they will loose a small amount of charge even if they are not being used, so be sure to check the batteries before using them.
When you purchase a new digital camera make sure to ask what type of battery ...
Digital cameras are good for the environment
As we consider the digital camera revolution that has taken place over the last decade, most people think about it in terms of enhanced benefits for consumers. We can take a lot more pictures at much lower cost with digital cameras versus film cameras. We can also more easily manipulate and share those photos since they're all in the digital realm.
But one thing many people don't think about actually deserves mention as potentially the most profound effect of the digital camera revolution: how digital cameras greatly reduce the destructive impact on the environment compared to film cameras.
At first, you might think, "How can that be? My film camera didn't harm the environment!" Even though it wasn't your camera that harmed the environment, your film processing did indeed harm it. Any time you take your pictures to a photo processing center, that film is run through batches of chemicals. These chemicals are environmental hazards, and once they are used to process film, those chem ...
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