| 1. | | The Amazing $1 Microcontroller (2017) (jaycarlson.net) |
| 670 points by howard941 on May 7, 2019 | 195 comments |
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| 2. | | Css-only-chat: A truly monstrous async web chat using no JS on the front end (github.com/kkuchta) |
| 1010 points by bennylope on May 7, 2019 | 148 comments |
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| 3. | | Flutter: a Portable UI Framework for Mobile, Web, Embedded, and Desktop (googleblog.com) |
| 654 points by mikece on May 7, 2019 | 449 comments |
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| 4. | | Open source collaborative text editors (juretriglav.si) |
| 628 points by juretriglav on May 7, 2019 | 162 comments |
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| 5. | | Mathics – A free, light-weight alternative to Mathematica (mathics.github.io) |
| 360 points by dvfjsdhgfv on May 7, 2019 | 83 comments |
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| 6. | | Researchers identify sleep as a reason why personality traits predict longevity (bps.org.uk) |
| 352 points by laurex on May 7, 2019 | 130 comments |
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| 7. | | Dear Client, Here’s Why That Change Took So Long (simplethread.com) |
| 464 points by jetheredge on May 7, 2019 | 273 comments |
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| 8. | | Pixel 3a (blog.google) |
| 309 points by vanilla_nut on May 7, 2019 | 325 comments |
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| 9. | | Networks of Low-Stakes, Casual Friendships (nytimes.com) |
| 191 points by gk1 on May 7, 2019 | 103 comments |
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| 10. | | JSMpeg – Decode It Like It's 1999 (jsmpeg.com) |
| 225 points by mmcclure on May 7, 2019 | 58 comments |
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| 11. | | To ORM or Not to ORM (thegreenplace.net) |
| 241 points by ingve on May 7, 2019 | 293 comments |
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| 12. | | Experimental device generates electricity from the coldness of the universe (phys.org) |
| 141 points by lelf on May 7, 2019 | 66 comments |
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| 13. | | Show HN: Full Help – Self-hosted help desk and knowledge base software (fullhelp.com) |
| 197 points by fullhelp on May 7, 2019 | 72 comments |
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| 14. | | Show HN: 2M fully loaded concurrent WebSockets (oatpp.io) |
| 158 points by lganzzzo on May 7, 2019 | 29 comments |
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| 15. | | Reycling Plastic from the Inside Out (lbl.gov) |
| 116 points by chmaynard on May 6, 2019 | 46 comments |
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| 16. | | Modeling Adversaries with TLA+ (hillelwayne.com) |
| 126 points by UkiahSmith on May 6, 2019 | 13 comments |
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| 17. | | Uses This: Joe Armstrong (usesthis.com) |
| 194 points by yakshaving_jgt on May 6, 2019 | 54 comments |
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| 18. | | Smarter Training of Neural Networks (csail.mit.edu) |
| 204 points by magoghm on May 7, 2019 | 40 comments |
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| 19. | | Intel XED – x86 Encoder Decoder (intelxed.github.io) |
| 114 points by peter_d_sherman on May 6, 2019 | 9 comments |
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| 20. | | Improving privacy and security on the web (chromium.org) |
| 121 points by migueldemoura on May 7, 2019 | 60 comments |
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| 21. | | Understanding Bloom Filters with Pharo (osoco.es) |
| 122 points by mpweiher on May 6, 2019 | 8 comments |
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| 22. | | Ray-Strips: A Compact Mesh Representation for Interactive Ray Tracing (2007) [pdf] (unc.edu) |
| 114 points by all2 on May 7, 2019 | 16 comments |
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| 23. | | 20 Years Ago, Microsoft introduced its optical mouse (gizmodo.com) |
| 188 points by turtlegrids on May 7, 2019 | 174 comments |
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| 24. | | Detroit’s LED streetlights going dark after a few years (detroitnews.com) |
| 122 points by danso on May 7, 2019 | 172 comments |
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| 25. | | Distributed consensus revised (acolyer.org) |
| 116 points by kushti on May 7, 2019 | 11 comments |
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| 26. | | U.S. Air Force has shot down multiple air-launched missiles in a test (thedrive.com) |
| 136 points by SEJeff on May 7, 2019 | 168 comments |
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| 27. | | Show HN: Nextjournal – seamless data science for teams (nextjournal.com) |
| 170 points by kvlr on May 6, 2019 | 33 comments |
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| 28. | | WordPress 5.2: Mitigating Supply-Chain Attacks (paragonie.com) |
| 107 points by CiPHPerCoder on May 7, 2019 | 37 comments |
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| 29. | | How C array sizes become part of the binary interface of a library (redhat.com) |
| 162 points by Sindisil on May 6, 2019 | 24 comments |
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| 30. | | Map of Proposed US Time Zone Changes (worldtimezone.com) |
| 167 points by synack on May 7, 2019 | 230 comments |
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| More |