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Re: (meteorobs) Re: [ASTRO] Dew prevention on lens with soap
In a message dated 98-11-06 15:51:05 EST, you write:
mikutis>>It's been a few years since I took chemistry (Use it or loose
it--Ha,Ha!)
but I remember water tends to form beads/droplets due to a property called
water tension which essentially results from Hydrogen bonding.<<
Water Tension! That's the word I was trying to recall in an earlier post.
mikutis>>I believe
emulsifying agents such as soap tend to breakdown and disrupt hydrogen
bonding, resulting in NOT a loss of water but rather a "spreading out" of
water molecules.<<
correct.
mikutis>>Oh yah, I forgot to mention that I would probably use
deionized/distilled
water in making "soap films."
>>
what would you be using water for here? I apply a dab of soap off my finger
tips and then wipe it dry. I don't add any water.
George Zay
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