Homemade Spacecraft from Luke Geissbuhler on Vimeo.
Shared curiosity, persistence, and the joy of learning shine out like a spotlight from “Homemade Spacecraft,” a 7-minute video by Luke Geissbuhler about his eight-month scientific adventure with his elementary-school-age son.
The film shows the climactic day of their mission: “to attach a HD video camera to a weather balloon and send it into the upper stratosphere to film the blackness beyond our Earth.”
We see the boy and his dad test out their return parachute, and tuck their iPhone and the boy’s “reward if returned” note into a jerry-rigged lightweight orange insulated “space capsule” (smaller than a shoebox). Then they launch their helium-filled balloon, with camera, on its merry way. Their text explains what the journey entails:
Eventually, the balloon will grow from lack of atmospheric pressure, burst, and begin to fall. It would have to survive 100 mph winds, temperatures of 60 degrees below zero, speeds of over 150 mph, and the high risk of a water landing. To retrieve the craft, it would need to deploy a parachute, descend through the clouds, and transmit a GPS signal to a cell phone tower [from an included on the launch]. Then we have to find it.
“Needless to say, there are a lot of variables to overcome,” this dad notes about their project. “Be responsible is the biggest.” They built their craft to meet FAA regulations for weather balloon payload, and launched it far from city air space. Their R&D stage took seven months, for both scientific and safety reasons:
The lighter it is, the faster it will rise and the less helium you have to put into it and so the more it can expand into the oversized balloon, hence the higher it will go. It also has to be able to shred in a jet engine, which isn’t easy. There are density requirements and you can’t use any cable or tie that won’t break with 50lbs of weight among other things.
At the climax of all that work, we see the magic of this balloon ascend into space, hear the whoosh of wind currents, gaze at the awe-inspiring curve of Earth through its camera’s lens.
I can’t help but think of all the kids who would be itching to do science, if science learning could only look like this. An interested adult, a compelling idea to explore, and then hours of meticulous effort together . . . that’s what lights fires in the mind, and keeps them burning years later.
Do you have stories like this to share, from the wide world of learning outside school walls? I’ll send a complimentary copy of Fires in the Mind if yours is among the best examples I receive.