Index of refraction of calcite for X-rays : C. C. Hatley. (Phys. Rev., Nov. 1924)
✍ Scribed by G.F.S.
- Publisher
- Elsevier Science
- Year
- 1925
- Tongue
- English
- Weight
- 65 KB
- Volume
- 199
- Category
- Article
- ISSN
- 0016-0032
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✦ Synopsis
to -5 per cent., while older ice in situ, which had certainly been through one summer, still contained .2 per cent. of salt, this being far too much for the ice to be of any use for drinking water." The ice that yields potable water always comes from an old pressure hummock and can be recognized by its spotted appearance in contradistinction to the fibrous structure of new ice.
" Even at very low temperatures, certain of the salts contained in the ice are lost and make their appearance in drops of intensely saline liquid at the lower extremities of icicles hanging beneath the iceblock. These drops of liquid were observed to remain liquid when the air temperature was as low as -3 °o C., so that they were evidently not mainly common salt."
How does the entangled salt water escape from a piece of ice so that drinking water can be obtained by melting? Let there be a portion of salt water included in a block of ice warmer than the temperature -22 ° C., at which solid salt is deposited. Whatever