| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| omarormachea | "Ifyou want to measure the spectra of various light bulbs, you can visit this web page: http://www.upb.edu/en/contenido/smartphone-spectrometer Yo..." | Read more » | about 7 years ago | |||
| warren | "Hi, sorry, we linked it to another page -- should perhaps make it more prominent; there's a link leading to the new location here: https://publicl..." | Read more » | about 8 years ago | |||
| dcchallener | "Where is the video to assemble the box? " | Read more » | about 8 years ago |