Tuesday, May 13, 2014
Monday, May 12, 2014
Amateur Adrianna Adams
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Coast on with Amateur Adrianna Adams, a San Fernando Valley girl from North Hollywood, California. She’s tall – 5’9” – and all natural, with soft curves, and chestnut brown hair and eyes. She has a few tattoos – a Chinese character on her lower back, and a cross and flowers on her hip. “I grew up on the East Coast, in Virginia Beach,” she says, “and I have big dreams. I work hard for what I want, and so far, it’s working. I've made some mistakes, but we all do, and that’s how we move forward as better people.” From the Atlantic on one coast to the Pacific on the other, Adrianna loves the beach. “Salt water and sand in my hair – it doesn’t get better than that,” she says, laughing. She’s active and likes to play sports, ride her dirt bike or work out at the gym, and then blow off some steam on a night out with the girls – or a night in with her boyfriend. “I’m finally in a relationship with a guy that I can trust,” she says, sighing. “It’s nice to have someone to come home to – someone who can make me laugh after a hard day.” Adrianna has been a working model for about four years. She’s done print and promotional work, and her favorite place to shoot is – you guessed it – the beach. This is her first time posing nude, and she’s very happy with the results. “I went to a casting call on a whim, and here I am,” she says. “Playboy is a true gentlemen’s publication, and there’s no better way to be photographed in the nude.”
Sunday, May 11, 2014
Science Quotes by Dorothy Crowfoot Hodgkin
“I was captured for life by chemistry and by crystals.”
— Dorothy Crowfoot Hodgkin
Oxford Dictionary of Quotations, 6th ed.
A great advantage of X-ray analysis as a method of chemical structure analysis is its power to show some totally unexpected and surprising structure with, at the same time, complete certainty.
— Dorothy Crowfoot Hodgkin
'X-ray Analysis of Complicated Molecules', Nobel Lecture (11 Dec 1964). In Nobel Lectures: Chemistry 1942-1962 (1964), 83.
From the intensity of the spots near the centre, we can infer that the protein molecules are relatively dense globular bodies, perhaps joined together by valency bridges, but in any event separated by relatively large spaces which contain water. From the intensity of the more distant spots, it can be inferred that the arrangement of atoms inside the protein molecule is also of a perfectly definite kind, although without the periodicities characterising the fibrous proteins. The observations are compatible with oblate spheroidal molecules of diameters about 25 A. and 35 A., arranged in hexagonal screw-axis. ... At this stage, such ideas are merely speculative, but now that a crystalline protein has been made to give X-ray photographs, it is clear that we have the means of checking them and, by examining the structure of all crystalline proteins, arriving at a far more detailed conclusion about protein structure than previous physical or chemical methods have been able to give.
— Dorothy Crowfoot Hodgkin
''X-Ray Photographs of Crystalline Pepsin', Nature (1934), 133, 795.
I used to say the evening that I developed the first x-ray photograph I took of insulin in 1935 was the most exciting moment of my life. But the Saturday afternoon in late July 1969, when we realized that the insulin electron density map was interpretable, runs that moment very close.
— Dorothy Crowfoot Hodgkin
'X-rays and the Structure of Insulin', British Medical Journal (1971), 4, 449.
… I became captivated by the edifices chemists had raised through experiment and imagination—but still I had a lurking question. Would it not be better if one could really “see” whether molecules as complicated as the sterols, or strychnine were just as experiment suggested?
— Dorothy Crowfoot Hodgkin
(11 Dec 1964) The X-ray analysis of complicated molecules, Nobel Lecture.
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