Hackernews posts about 2021

2021 is the year in which these three articles were published.

1. What is the origin of the lake tank image that has become a meme? (2021) (history.stackexchange.com)
   554 points by napolux about 24 hours ago | 138 comments
2. How can this 6 axis robot have a static accuracy of 0.05 mm? (2021) [video] (www.youtube.com)
   275 points by unclefuzzy 27 days ago | 80 comments
3. Category Theory Illustrated: Logic (2021) (abuseofnotation.github.io)
   252 points by boris_m 27 days ago | 83 comments
4. Unfortunate things about performance reviews (2021) (rachelbythebay.com)
   240 points by zargon 17 days ago | 131 comments
5. School is Not Enough: Learning is a consequence of doing (2021) (map.simonsarris.com)
   212 points by Gooblebrai 25 days ago | 131 comments
6. Do you need Redis? PostgreSQL does queuing, locking, and pub/sub (2021) (spin.atomicobject.com)
   197 points by fanf2 18 days ago | 129 comments
7. Spann: Highly-Efficient Billion-Scale Approximate Nearest Neighbor Search (2021) (arxiv.org)
   124 points by ksec 19 days ago | 33 comments
8. Becoming physically immune to brute-force attacks (2021) (seirdy.one)
   109 points by emurlin 28 days ago | 68 comments
9. Discarded delights: The joy of ex-library books (2021) (www.abebooks.com)
   96 points by MrVandemar 1 day ago | 67 comments
10. An unearthly spectacle – The untold story of the biggest nuclear bomb (2021) (thebulletin.org)
    92 points by arethuza 8 days ago | 153 comments
11. Fitting a Forth in 512 bytes (2021) (compilercrim.es)
    92 points by whereistimbo 27 days ago | 22 comments
12. Using gRPC for (local) inter-process communication (2021) (www.mpi-hd.mpg.de)
    84 points by zardinality about 24 hours ago | 75 comments
13. A Performance Comparison of Modern Garbage Collectors (2021) [pdf] (rodrigo-bruno.github.io)
    56 points by mfiguiere 23 days ago | 13 comments
14. The Broadband Phone (2021) (quentinsf.com)
    44 points by watusername 9 days ago | 1 comments
15. Large-Scale Dimension Reduction with Both Global and Local Structure (2021) [pdf] (jmlr.org)
    40 points by chaosprint 1 day ago | 8 comments
16. Why are ML compilers so hard? (2021) (petewarden.com)
    40 points by _feynon 24 days ago | 4 comments
17. Software freedom isn't about licenses – it's about power (2021) (rosenzweig.io)
    38 points by pabs3 22 days ago | 11 comments
18. TCP Fast Open? Not so fast (2021) (blog.apnic.net)
    36 points by fanf2 29 days ago | 8 comments
19. Reports of Unwanted Telemarketing Calls Down More Than 50 Percent Since 2021 (www.ftc.gov)
    33 points by impish9208 3 days ago | 17 comments
20. Creating Runtime and Application Images with JLink (2021) (dev.java)
    32 points by mooreds 20 days ago | 21 comments
21. Why on Earth do we have 29.97fps? (2021) (old.reddit.com)
    31 points by aragonite 4 days ago | 2 comments
22. Earth Could Be Alien to Humans by 2500 (2021) (www.scientificamerican.com)
    28 points by benchmarkist 11 days ago | 25 comments
23. Elon Musk's Engineering Principles – The 5 Step Process (2021) (www.christianscheb.de)
    25 points by SerCe 2 days ago | 27 comments
24. The Soul in the Stomach (2021) (wellcomecollection.org)
    24 points by yamrzou 11 days ago | 3 comments
25. Notes for an annotation SDK (2021) (blog.jonudell.net)
    21 points by cxr 20 days ago | 1 comments
26. Clojure from a Schemer's Perspective (2021) (www.more-magic.net)
    14 points by fanf2 6 days ago | discuss
27. Using QEMU-user emulation to reverse engineer binaries (2021) (ariadne.space)
    9 points by Malp 9 days ago | 2 comments
28. Think first about what problem this is solving and for whom (2021) (letterstoanewdeveloper.com)
    9 points by mooreds 17 days ago | discuss
29. Did You Know? Windows Has Never Had a "System Tray" (2021) (www.howtogeek.com)
    7 points by mkotowski 17 days ago | 4 comments
30. In search of Nirad Chaudhuri (2021) (thespectator.com)
    7 points by akkartik 22 days ago | 2 comments