When HN users recommended it
1 HN user recommended this in 2017, in one comment.
20072026
Each tall tick is one HN user's first recommendation. A short tick is the same user again. Click a tick to jump to the comment.
1 HN user recommended this in 2017, in one comment.
Each tall tick is one HN user's first recommendation. A short tick is the same user again. Click a tick to jump to the comment.
I can set a piece of cardboard on fire with visible flames in a few seconds. I carry a small fresnel lens, https://www.amazon.com/3-Pack-Credit-Card-Pocket-Fresnel/dp/...