| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| Ag8n | "Strike 2. The place I was referred to intends to start class 100 k testing in the near future.... But not now. " | Read more » | about 6 years ago | |||
| Ag8n | "The best way to test a HEPA filter is with an air particle counter. Thought I could borrow one from a local university. They do not have one. It..." | Read more » | about 6 years ago | |||
| evjam | "This running as the first prototype, room for expansion of data collection and projections; e.g. opportunity for commercial prospects, such as fish..." | Read more » | about 6 years ago | |||
| evjam | "I would need help with the logistics - the high frequencies, GPS data and deep space stuff. In terms of design, user-trial, error, and amendments I..." | Read more » | about 6 years ago | |||
| evjam | "thanks Warren, heres ideas and draft..what do you think!? (: " | Read more » | about 6 years ago | |||
| warren | "Hello! This is an interesting idea -- I'd love to see it fleshed out a bit more. We do need user experience help! Maybe you have some sketches, wi..." | Read more » | about 6 years ago | |||
| Ag8n | "I don't know if you have a protocol in mind, but let me know exactly what you want. I also need to do some digging. May be able to find a particl..." | Read more » | about 6 years ago | |||
| warren | "@Ag8n that sounds really good -- do you have a box fan and want to try it? I'm also interested in whether we could compare a clean filter to one us..." | Read more » | about 6 years ago | |||
| Ag8n | "How about using foam pipe insulation and adhesive for the frame? Then hold the filters in place with bungee cords? Maybe as a cost savings? " | Read more » | about 6 years ago | |||
| Ag8n | "Something similar has been used as an improvised food dehydrator for years. See some of the old episodes of Good Eats. Wonder if the dehydrator w..." | Read more » | about 6 years ago | |||
| zengirl2 | "@warren Yes! Can't do until later this week, but we should definitely expand. " | Read more » | about 6 years ago | |||
| warren | "@zengirl2 - heard you were talking about doing this -- shall we collect up some info on a new wiki page using a method template? " | Read more » | about 6 years ago | |||
| stef | "Further to my previous replies, it may be possible to view the sun disk attenuated with the filters used by welders to view their work. I have not ..." | Read more » | about 6 years ago | |||
| Metamer | "I, too am trying to get spectral data of sun/sunsets. Would be interested to hear what you've learned " | Read more » | about 6 years ago | |||
| stef | "What I was alluding to is that with all of the filter attenuation, the cmos sensor was still overloaded. This can be seen in the spectra submitted..." | Read more » | over 6 years ago | |||
| Ag8n | "There are two approaches to this, the hardware and software. Sounds like you took care of the hardware end very well. Can you think of any softwa..." | Read more » | over 6 years ago | |||
| stef | "I have used photographic neutral density filters and have not been able to view the sun directly using the spec3 highly modified device. The attenu..." | Read more » | over 6 years ago | |||
| Ag8n | "Only one suggestion then. Sunlight can be strong. As a safety measure, partially block the sun and work your way up to full exposure. Might not ..." | Read more » | over 6 years ago | |||
| jsbonillam | "I am going to make and analyse the graphs with the wavelength and absorption. " | Read more » | over 6 years ago | |||
| Ag8n | "Please forgive the question, but what lines are you using and what method of analysis? Thank you for the information. " | Read more » | over 6 years ago | |||
| warren | "Oh, i don't know, but it looks very cool! " | Read more » | over 6 years ago | |||
| jsbonillam | "@warren The camera will be just part of the spectrometer. I am still considering whether to use LDRs (light depending resistors), as here http://ww..." | Read more » | over 6 years ago | |||
| warren | "How would you set up the spectrometer next to the other equipment, or the tracker? Are you using a raspberry pi camera as-is, as well, or just as p..." | Read more » | over 6 years ago | |||
| warren | "I think the Lego spectrometer's suitability for this is an open question, but the Raspberry Pi Camera v2 is very low noise and could be worth testi..." | Read more » | over 6 years ago |