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My friend Sandi sent me this. I thought you might like it, too. GREAT picture!! < Please read all this first before opening up the picture. This is pretty < cool! Be sure to read the explanation below before looking at the attached < picture. You can't really appreciate the picture without knowing what it is < exactly. This isn't a joke, so don't expect a punchline or strange/funny < picture. < Through the viewfinder of his camera, Ensign John Gay could see the fighter < plane drop from the sky heading toward the port side of the aircraft carrier < Constellation. At 1,000 feet, the pilot drops the F/A-18C Hornet to increase < his speed to 750 mph, vapor flickering off the curved surfaces of the plane. < In the precise moment a cloud in the shape of a farm-fresh egg forms around < the Hornet 200 yards from the carrier,its engines rippling the Pacific Ocean < just 75 feet below, Gay hears an explosion and snaps his camera shutter once. < "I clicked the same time I heard the boom, and I knew I had it", Gay said. < What he had was a technically meticulous depiction of the sound barrier being < broken July7,1999, somewhere on the Pacific between Hawaii and Japan. < Sports Illustrated, Brills Content, and Life ran the photo. The photo < recently took first prize in the science and technology division in the World < Press Photo 2000 contest, which drew more than 42,000 entries worldwide. < "All of a sudden, in the last few days,I've been getting calls from < everywhere about it again. It's kind of neat, " he said, in a telephone < interview from his station in Virginia Beach, VA. < A naval veteran of 12 years, Gay, 38, manages a crew of eight assigned to < take intelligence photographs from the high-tech belly of an F-14Tomcat,a < Joint Task Force Exercise as the Constellation made its way to Japan. < Gay selected his Nikon 90 S, one of the five 35 mm cameras he owns. He set < his < 80-300 mm zoom lens on 300 mm, set his shutter speed at 1/1000 of a second < with an aperture setting of F5.6. "I put it on full manual, focus and < exposure," Gay said. "I tell young photographers who are into automatic < everything, you aren't going to get that shot on auto. The plane is too < fast. The camera can't keep up." < At sea level a plane must exceed 741 mph to break the sound barrier, or the < speed at which sound travels. The change in pressure as the plane outruns < all of the pressure and sound waves in front of it is heard on the ground as < an explosion or sonic boom. The pressure change condenses the water in the < air as the jet passes these waves. Altitude, wind speed,humidity, the shape < and trajectory of the plane - all of these affect the breaking of this < barrier. The slightest drag or atmospheric pull on the plane shatters the < vapor oval like fireworks as the plane passes through,he said everything on < July 7 was perfect. "You see this vapor flicker around the plane that gets < bigger and bigger. You get this loud boom, and it's instantaneous. The < vapor cloud is there, and then it's not there. < It's the coolest thing you have ever seen." < Now open the picture. - CLOUD.jpg
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