Geek Dad: Awesomely Geeky Projects And Activities for Dads And Kids to Share
“MIT student Oliver Yeh did it with $150 worth of materials (including a secondhand camera and a Styrofoam cooler) in September 2009. These packages then return with incredible pictures, providing yet more corroboration of the curvature and beauty of our planet. Such projects have to overcome some interesting technical challenges, such as GPS tracking and the necessity to keep equipment working in very cold, low-pressure conditions. Really, they are a kind of UAV (Unmanned Aerial Vehicle).
While... launching a balloon several miles into the sky is a tremendously exciting project, it is not the kind of thing you can throw together with your kid over a weekend. This project, though, is designed to help you have the same kind of fun at lower altitudes and for significantly less expense (of both money and time).
A little research on the Internet tells us that, based on the lifting capacity of helium, a group of balloons with a volume equivalent to a 4-foot-diameter sphere (around 12.5 cubic feet) should be able to lift about one pound of payload.MoreLess
While... launching a balloon several miles into the sky is a tremendously exciting project, it is not the kind of thing you can throw together with your kid over a weekend. This project, though, is designed to help you have the same kind of fun at lower altitudes and for significantly less expense (of both money and time).
A little research on the Internet tells us that, based on the lifting capacity of helium, a group of balloons with a volume equivalent to a 4-foot-diameter sphere (around 12.5 cubic feet) should be able to lift about one pound of payload.MoreLess
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