Submission timeline
2007–2026One slot for every year since HN launched. Height is that year's peak points; orange marks a 100+ point or 50+ comment breakout. Select a bar to open its strongest thread.
First comments on top threads
HN comment order> Naturally, large range uncertainty increases the ambiguity of position, but the relative position of the satellites also matters. If they aren’t well spread, the exactness of calculated location also suffers. (see the excellent example in OP) Fun tidbit, the resulting error is known for the system in closed form as Geometric Dilution of Precision, and is a 3x3 (edit: or 4+x4+ if you are estimating bias or quantities like time, thx brandmeyer) matrix that depends on all the locations…
By the way... Gold codes (this article calls them chipping codes) can be used to solve a lot of engineering problems where you need to synchronise two things. Eg. "I want to transmit an infrared signal and receive it somewhere else, but the signal isn't bright enough to detect! - no worries, use a 1023 bit gold code, and suddenly you get a 30x effective brightness increase, and perfect time sync, with no hardware changes!" However... beware that you should…
I suppose Ciechanowski is the kind of blogger who causes an HN cascade with each new article.
(2022) Title: GPS Discussion at the time (2900 points, 288 comments) https://news.ycombinator.com/item?id=29981188
The first top-level comment from each of the four biggest threads, in HN’s own order. Excerpts are shortened; open a comment for full context.
- Breakout years
- 2
- Total points
- 3342
- Total comments
- 323
100+ points or 50+ comments
reference only — not used in Hall rules or ranking
reference only — not used in Hall rules or ranking
Every submission
| Date | Title as submitted | By | Points | Comments |
|---|---|---|---|---|
| 2022-01-18 | GPSFirst breakout · Best thread | todsacerdoti | 2900 | 285 |
| 2023-05-13 | GPS | pedmb | 1 | 0 |
| 2023-05-23 | How GPS Works | chillycurve | 3 | 0 |
| 2023-06-03 | GPSLatest 20+ point return | tkiolp4 | 414 | 35 |
| 2024-12-18 | GPS – Bartosz Ciechanowski (2022) | srathi | 18 | 2 |
| 2025-04-12 | An Interactive Explanation of GPS (2022) | blobcode | 5 | 1 |
| 2026-04-13 | GPS Explained (2022) | gdevillers | 1 | 0 |