Complete Picture Of Conditions: The Mariner 5 data yielded detailed information on the upper atmosphere and ionosphere of Venus, including the interaction with the solar wind at the top of the ionosphere. The spacecraft also provided profiles of temperature and density in the lower atmosphere and an indirect indication of the composition of the atmosphere. The data from Venera 4 provided good information on conditions at and near the surface of Venus, including significant information on the amount of water vapor in the atmosphere.
The combination of data from the two spacecraft supplied a remarkably complete picture of conditions on Venus. Among the results were the following:
A man with a collection isn't particularly hot copy for the magazines, because he doesn't, in most cases, display any ingenuity in acquiring his collection, but only a good deal of spare money or a lot of persistence. A man with an odd collection ordinarily makes just one picture, one only moderately interesting if it shows a proud individual surrounded by some sort of "loot." One-picture features are also hard to sell to the magazines. Sometimes, however, other pictures which will interest an editor may be staged. Incidentally, eccentric collections, rather than those notable for being extensive or complete, are the best bets for picture sales to magazines.
The technique was successful but, Du complained, "tedious and lengthy, needing great man dexterity and more than forty minutes spent upon i negative to obtain a complete picture. The sitter i object had to be posed for at least two minutes, wh ever the strength of the chemicals, and however powe the camera, and given the most favorable conditions < life." Among the finest of the plates are the first ph graphs ever taken of the rockcut temple of Ramses 1 at Abu Simbel. The colossal statues were then so buriej that Du Camp ordered the sailors of the dahabeha I had carried them 500 miles up the Nile to dig the sands of the desert so he could photograph them.
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Photography
