| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| mathew | "Thom, A "tripod" of lines may help stabilize the balloon somewhat, and is a good idea. However, the problem of balloon stability is not just about..." | Read more » | over 3 years ago | |||
| mathew | "My comment above is not correct. Please check out the balloon regulation page. " | Read more » | over 3 years ago | |||
| mathew | "@Ag8n Yes, the Jalbert Kytoons! I covered them and a few other historical kite balloons here: https://www.headfullofair.com/post/what-is-a-kite-bal..." | Read more » | over 5 years ago | |||
| mathew | "As a system, the balloon and kite parts are definitely lifting more than dragging-- Airpup climbs to higher angles as the wind goes from 3 to12mph ..." | Read more » | over 5 years ago | |||
| mathew | "I should clarify that air adds mass not weight-- but a massive balloon is sluggish. " | Read more » | over 5 years ago | |||
| mathew | "@cfastie Yes, Airpup's lift increases with the wind. I didn't measure the pull in 20mph winds, but I can say that it was at the limit of my ability..." | Read more » | over 5 years ago | |||
| mathew | "the paper is a great substrate! cool exercise. " | Read more » | almost 6 years ago | |||
| mathew | "@cfastie mentions the most pernicious fact of flying-- once you start collecting equipment you might never stop. That's true for whichever method y..." | Read more » | almost 6 years ago | |||
| mathew | "@Matej the most up-to-date information and production files are in the Github repository: https://github.com/publiclab/passive-pm The screen and m..." | Read more » | about 6 years ago | |||
| mathew | "Micmac's new site: http://micmac.ensg.eu/index.php/Accueil " | Read more » | about 6 years ago | |||
| mathew | "@Eustatic's update: https://publiclab.org/notes/eustatic/09-16-2014/use-of-velcro-ties-in-balloon-mapping " | Read more » | about 6 years ago | |||
| mathew | "glad you found the info, @ag8n! Some kite physics about altitude and line length is covered in notes on kite anemometers " | Read more » | about 6 years ago | |||
| mathew | "@eustatic-- you definitely didn't kill momentum on the project! Once we had the calibration locked in, we needed something to test for. The Kitag..." | Read more » | over 6 years ago | |||
| mathew | "beautiful flight @suman! " | Read more » | over 6 years ago | |||
| mathew | "Hi Suman, I haven't really worked on solar hot air balloons for a while. Hot air balloons, and solar hot air balloons especially, are not great for..." | Read more » | over 6 years ago | |||
| mathew | "Real cool Chris! Glad to see these advancing. I love the new adjustable-mount position tray. " | Read more » | over 6 years ago | |||
| mathew | "There is no clear way to conclusively prove PM came from a facility, but there are several inferences that can be drawn. Saturation Monitoring ma..." | Read more » | almost 7 years ago | |||
| mathew | "You're right I had a typo-- I should have deleted the PM2.5 field. fixed, thanks. The mine was operational, and they were not loading rail cars, b..." | Read more » | almost 7 years ago | |||
| mathew | "Absolutely, I should have mentioned them. Here are two: $26 Ambient Weather WM-35 (discontinued, new model is WM-2), has no recording functions ..." | Read more » | almost 7 years ago | |||
| mathew | "@bkeist do you want to try troubleshooting it live? could you join next Tuesday's open call? its from 2-3 Central time. " | Read more » | almost 7 years ago | |||
| mathew | "@marlokeno pointed me to the US Dept. of Labor's Mine Data Retrieval System which indicates that Great Northern is currently abandoned. This is an..." | Read more » | about 7 years ago | |||
| mathew | "1) Looking up the flow rate is going to give a rough estimate, but we will probably have to measure in-situ. The bubble method is a good one here. ..." | Read more » | about 7 years ago | |||
| mathew | "I agree with Chris on many of these points. CHDK is great to have, and STICK has made things much better. a direct link to STICK would help: http..." | Read more » | about 7 years ago | |||
| mathew | "trashcan rig in action: https://publiclab.org/notes/micheletobias/6-19-2012/trash-can-rig-action " | Read more » | about 7 years ago |