Friday, July 31, 2009
Uline makes a wide selection of tapes.
Avoid aluminum duct tape as it adds unnecessary weight and creates a heat shink to draw heat out.
Tuesday, July 28, 2009
I envision tis being used by an entire classroom.
Monday, July 27, 2009
There's a tape for gluing Cellfaom 88 together. Don't use that for a BalloonSat airframe, instead use a bead of hot glue. Then cut out any ports and openings. Afterwards you can wrap the airframe in thin colored tape.
Sunday, July 26, 2009
I've finished the initial design of a flight computer that incorporates a radio. Just plug the GPS in and you're ready to go. I hope to get a test board sent to BatchPCB within a week. I call the design the NearSys UltraLight.
Sunday, July 19, 2009
NearSys 09E reached an altitude of around 80,000 feet. The exact altitude if not known becuase the GPS was acting up. The backup tracker only produced five posits on descent. It transmits now, so I checked the battery and found it was 8.0 volts (nominal 7.2 V lithium). So I suspect the capsule was accidentally shut off or it has a bad power switch. I'll get this debugged before the next mission. This is why NearSys flies two independent trackers on every mission.
Recovery occured in Garnett, where at least three other capsules recovered. This has got to be the biggest news for this town!
A homeowner was setting his sprinkler when he heard a rustle in his tree. He turned around to see the capsule and parachute descend along the side of his tree. He was 10 feet away when this happened. It looks like the downward camera can see him shortly before landing.
This is the highest image, taken around 80,000 feet. That cumulonimbus cloud was on the horizon as the near spacecraft lifted off. At this altitude we're so high that we can see the horizon beyond the cloud.
So I'm looking for a another opportunity to fly. I have a thermopile telescope to test.
Wednesday, July 15, 2009
I'm launching a near spacecraft carrying the following experiments.
Still Digital Camera
Two Digital Video Cameras
Mark Conner is predicting great weather for Saturday's launch. I'm really looking forward to GPSL this year. I'm the only person to attend them all.
Onwards and Upwards
Tuesday, July 14, 2009
Blog's have very much a single direction. I post updates to them for people to read. While people can make comments, their input is not as significant as my initial posts.
Wiki's are very bi-directional and collaborative. Regardless of who creates an entry, everyone is treated as an equal. in fact everyone is expected to add input equally.
How would I use Blogs and Wikis?
I would use a blog to post information, notes, link, and videos to my students. If they have a question, they could make a comment. But notice the blog is very teacher centered.
I would set up a wiki for teams of students to talk to each other. It allows them to collaborate and learn together.