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Hi Don,

The wavelengths corresponding to the a refractive index of 1.2999 for ice at -40 C are 84.815, 1095, 8222, 12109, 30826, and 46423.5 nm.

Here is the problem though, recall that the angle of refraction is dependent upon the ratio of the refractive indices of the two optical materials. Using non-visible light means that the refractive index of air will also change (though not by much). What this means is that the angles will not match your diagram.

Going beyond visible wavelengths though stretches the idea beyond credibility. how would they detect infra-red radiation, or even microwaves for that matter? How would they even generate such rays? It is one thing to suggest that they had knowledge of refractive indices of air, and ice at -40 C for visible light, but another to suggest that they have knowledge of it at non-visible wavelengths. At least in principle, using visible light it is conceivable that they could have performed the experiments to obtain the correct angles, assuming they have a basic understanding of refraction.

jonny




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Subject Views Written By Posted
Totally confused on The Periodic Table 1171 Ahatmose 05-Feb-12 03:39
Re: Totally confused on The Periodic Table 391 JonnyMcA 05-Feb-12 09:55
Re: Totally confused on The Periodic Table 277 Ahatmose 05-Feb-12 14:57
Re: Totally confused on The Periodic Table 364 JonnyMcA 05-Feb-12 15:52
Re: Totally confused on The Periodic Table 353 JonnyMcA 05-Feb-12 16:01
Re: Totally confused on The Periodic Table 315 Ahatmose 06-Feb-12 03:10
Re: Totally confused on The Periodic Table 317 JonnyMcA 06-Feb-12 18:26
Re: Totally confused on The Periodic Table 336 Spiros 05-Feb-12 22:00
Re: Totally confused on The Periodic Table 344 JonnyMcA 05-Feb-12 22:47
Re: Totally confused on The Periodic Table 335 Spiros 07-Feb-12 22:40
Re: Totally confused on The Periodic Table 337 Susan Doris 06-Feb-12 08:43
Re: Jonny/Ahatmose 368 Thunderbird 08-Feb-12 03:02
Index of Refraction 392 Ahatmose 09-Feb-12 03:08
Re: Index of Refraction 360 Ahatmose 09-Feb-12 03:25
Re: Index of Refraction 1346 JonnyMcA 09-Feb-12 08:34
Re: Index of Refraction 367 Ahatmose 09-Feb-12 16:10
Index of Refraction: The solution ? 412 Ahatmose 09-Feb-12 17:41
Re: Index of Refraction: The solution ? 368 JonnyMcA 11-Feb-12 09:03
Re: Index of Refraction 362 JonnyMcA 11-Feb-12 08:59
Re: Index of Refraction 349 Ahatmose 11-Feb-12 12:29
Re: Index of Refraction 405 JonnyMcA 11-Feb-12 14:12
Re: Index of Refraction 356 Ahatmose 12-Feb-12 13:11
Addendum: Index of Refraction 341 Ahatmose 12-Feb-12 13:19
Second Addendum: Index of Refraction 293 Ahatmose 12-Feb-12 13:26
Third Addendum: Index of Refraction 323 Ahatmose 12-Feb-12 13:32
Re: Third Addendum: Index of Refraction 330 JonnyMcA 12-Feb-12 16:03
Re: Third Addendum: Index of Refraction 341 JonnyMcA 12-Feb-12 21:17
Re: Second Addendum: Index of Refraction 348 JonnyMcA 12-Feb-12 15:40
Re: Addendum: Index of Refraction 330 JonnyMcA 12-Feb-12 15:34
Re: Index of Refraction 393 JonnyMcA 12-Feb-12 13:30
Re: Index of Refraction 328 Ahatmose 12-Feb-12 13:48
Re: Index of Refraction 339 JonnyMcA 12-Feb-12 15:32
Re: Index of Refraction 346 Ahatmose 13-Feb-12 01:23
Re: Index of Refraction 392 JonnyMcA 13-Feb-12 08:23
Re: Index of Refraction 373 Ahatmose 13-Feb-12 16:01
Re: Index of Refraction 369 JonnyMcA 13-Feb-12 19:01
Re: Index of Refraction 345 Ahatmose 13-Feb-12 16:47
Re: Index of Refraction 330 JonnyMcA 13-Feb-12 19:07
Re: Index of Refraction 339 Ahatmose 13-Feb-12 17:37
Re: Index of Refraction 331 JonnyMcA 13-Feb-12 19:20
Re: Index of Refraction 468 Spiros 05-Apr-18 14:20
Talk about stretching credibility: Index of Refraction 355 Ahatmose 13-Feb-12 05:48


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