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What did we do?We decided to paraglide over different kinds of terrain to find thermals. Looking out from high on a mountainside, we identified four major surface types: rocks, grass, trees and water. We used a thermal camera generously loaned to DragonflyTV by Indigo Systems and looked at the different temperatures of those surface types. We then compared the images from the thermal camera to our ride results. David made three rides carrying a variometer, which is a device that tells his altitude and how quickly he is rising or falling. During his flight, he used a walkie-talkie to tell us what his altitude was and what kind of surface was underneath him. We recorded the information in a notebook. more... |
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