When HN users recommended it
1 HN user recommended this in 2020, 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 2020, 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.
Any convex mirror would do [1],[7]
[1] https://www.ebay.com/itm/10cm-Diameter-Focal-Convex-Mirror-L...
[7] https://www.amazon.com/Computer-Rear-View-Personal-Security-...