[HN Gopher] Teacher's low-tech laptop hack to display handwritte... ___________________________________________________________________ Teacher's low-tech laptop hack to display handwritten notes for online class Author : miles Score : 59 points Date : 2020-09-13 22:07 UTC (52 minutes ago) (HTM) web link (mothership.sg) (TXT) w3m dump (mothership.sg) | bentpins wrote: | Maybe I'm missing something but how is the image so clear? CDs | don't have a mirror like surface, they reflect light in unusual | ways | formerly_proven wrote: | Use a pressed CD (which are good mirrors at this angle), not a | blank CD (which are tinted). | jeffbee wrote: | I just pointed a CD at my face and it's pretty much a mirror. | What unusual reflection did you expect? | the_svd_doctor wrote: | I also don't really get it. Looks too clear and sharp for a CD | reflection. | TaylorAlexander wrote: | Well I noticed it's a CD-RW which is a peculiar device, so | maybe it doesn't reflect the same as normal CDs. | superhuzza wrote: | I really like how her hack doesn't involve using another video | feed, which makes it a lot more accessible to anyone with a | laptop. | | One improvement I can see - maybe better to tape the pencil with | the eraser point up, so you're less likely to accidentally stab | yourself with the pencil if moving the laptop or CD? | Pfhreak wrote: | Clever. But also tragic. The poor teachers who have been caught | in the middle of all this really make me feel sad. | | Teaching is already a rough gig, and being forced to improvise | with limited to no support from communities, schools, or | governments. | notatoad wrote: | Being forced to improvise with limited support is a fairly | normal situation for teachers tbh. | golergka wrote: | Wouldn't writing on that transfer the pressure through the | notebook to the keyboard? How would you avoid random key presses? | joezydeco wrote: | My kid has an Osmo kit that did the same trick with a little | mirrors that fit an iPad perfectly: | | https://www.playosmo.com | blackrock wrote: | Clever. Now someone from China needs to make a plastic mirror | reflection mount device to put on top of your laptop camera. | seraphsf wrote: | My kids use an educational app series called Osmo, which comes | with a reflector like this for iPad (1). Field of view and | distortion may be an issue, but I bet a vendor could easily make | something similar designed for this use case. | | It also looks like there are $6 clip-on mirrors (2) that would | also do an admirable job, perhaps with more stability and control | than the pencil-balancing trick. | | (1) Osmo - Base for iPad https://smile.amazon.com/dp/B07JNZ4J67/ | | (2) Flexible 4" Clip On Mirror for Computer Monitor - Convex Desk | Mirror to See People Behind You - Perfect in Any Office Cubicle | Environment https://smile.amazon.com/dp/B078NB3JV2/ ___________________________________________________________________ (page generated 2020-09-13 23:00 UTC)