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Thread: special project(Mr. Cold)

  1. #1 special project(Mr. Cold) 
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    Okay I have a school project I decided to do, and I need your help. I know I only joined because of this, but men of science are always willing to help.. I think.. anywho, it goes something like this:

    you get a Coke, and it's flippin warm. it tastes nasty, right? Well what if there was a drink that when you first unscrew the cap, something drops iinto the drink and makes in instantly cold to the touch. Non-toxic, duh. You would be able to enjoy a nice, cold, refreshing drink anywhere now. Even in Mexico, no fridge or cold water in sight. Just open up a bottel of Mr. Cold(what we dall it), and enjoy! It would be a hit in third-world countries, and if it tasted good, in good ol' U.S.

    that's my main idea: a drink of some sort that when you add a packet of some compoud to the liquid, it create some sort of chemical reaction. The trick is finding one chemical reaction and/or compound(s) that's non-hazardous to us in any form or fashion. Any idea what could work? And if you have another idea that's fine to post too. anything will help.

    -- Mike Schmitz


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  3. #2  
    Universal Mind John Galt's Avatar
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    Interesting idea Mike, but it may be quite a challenge. To get the 'pill' to cool the drink you have to lose the heat somewhere. I can think of two ways you could do that:
    a) Convert the thermal energy to chemical energy.
    b) Forced evaporation

    The first is going to change the character of the drink, so that even if the resultant product is non toxic, it will not taste the same.
    The second is going to have to lose a substantial volume to lower the temperature noticeably, and will likely suffer from the same drawbacks as the first.

    If you could figure out a way, you could be en route to your first million. I just don't see how. Let's hope someone else on the forum has more imagination than me.


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  4. #3  
    Forum Junior Lucifer's Avatar
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    Houm...


    Why not use a cryogenic mix in a protective packaging? You would sell the chemicals in a bi- or tri-component crushable pill and also a stainless steel pipe with a watertight bottom; customer would submerge the "cold" end of the pipe in the liquid, put the pill inside, then crush it and it drains heat from the pipe and the pipe cools the drink. Then dispose of the crushed pill and it's ready for another use.

    I'll try to find some useful recipes of cryogenic mixes...
    “If the misery of the poor be caused not by the laws of nature, but by our institutions, great is our sin.” -Charles Darwin
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  5. #4  
    Forum Professor
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    An endothermic chemical would be difficult, since it would leave you with a bunch of extra chemical in your drink that would probably taste bad and/or be toxic. I think they usually use amonium nitrate in chemical cold packs, but you wouldn't want that in your softdrink.

    Even if you were to drop 10 ml of liquid nitrogen into a 12 oz drink, it would only lower the temperature by about 1 degree.
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  6. #5  
    Forum Ph.D.
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    Actually this topic is going to be one of the subjects on the Science channel tomorrow (Feb 15), on the program "How it's made". I saw a preview for it and they had a self-cooling beer can.
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  7. #6  
    Universal Mind John Galt's Avatar
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    The point is that the cooling chemicals are kept quite separate from the beverage. I do not believe it possible (practical) to develop something that is added to the drink itself, without the problems noted above.
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  8. #7  
    Forum Junior Cuete's Avatar
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    It would be a hit in third-world countries, and if it tasted good, in good ol' U.S.
    Just curious redeyes....
    ¿Why the third-world? ¿Don't have any refrigerators there? ¿How come?
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