Jump to content

foxy john

Senior Members
  • Posts

    30
  • Joined

  • Last visited

Posts posted by foxy john

  1. Raider5678, I don't think you missed anything. That 'someone' doesn't know the difference between types of radiation and in general doesn't know much about cooking food, they are talking rubbish.

    As an aside:- do the people who are worried about it use mobile phones? You can always fight back by saying they use radiation. ;)

  2. Just had a look at the Brita web site. They say that their filters will remove some of the salts that cause hard water, i.e. they have some ion exchange capacity. Taking out calcium carbonate would certainly drop the pH.

    Looks as though they are doing what they are supposed to do.

  3. If you are using a single D cell, I don't think you can generate enough of any thing to be seriously worried.

    The hydrogen will disperse pretty rapidly in an ordinary room.

    There is no chance that you could breath chlorine gas and not know anything about it ;)

  4. The activated charcoal could be removing some of the proteins from the water. These could be buffering the water to some extent and dropping the pH. 'Pure' water tends to have a slightly low pH because of dissolved CO2.

     

    You have given me an idea, I want to remove proteins from my koi pond, they are causing foam on the surface. Brita water filters may be the answer.

  5. A soft spring and a heavy weight.

    I think it would be best to try and scale up as far as practical. Maybe use a lot of elastic bands to get something a couple of meters long, then put a 100g weight on the end. That should move a reasonable distance at speeds you can measure. Either measure it optically or with a coil.

  6. Forget graphite.

    Apart from being a very dirty material to work with, ( think lead pencils ) it is also combustible. So not only would you get filthy, your furnace could catch fire :)

     

    Ceramics would be a very good choice and also readily available - wall or floor tiles. They are also pretty good insulators, so will keep the heat in. You can use ceramic tile adhesive as the cement.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.