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1. Stacking concrete blocks is a surprisingly efficient way to store energy (qz.com)
726 points by nabla9 30 days ago | 382 comments
2. Glowing mercury thyratrons: inside a 1940s Teletype switching power supply (righto.com)
131 points by eaguyhn 7 days ago | 49 comments
3. DIY puller RC flying wing airplane with Kline–Fogleman modified airfoil (ausleuchtung.ch)
141 points by synesso 10 days ago | 20 comments
4. Isochronous Curves (wikipedia.org)
223 points by anonu 9 days ago | 62 comments
5. Feynman's Lost Lecture (ft. 3Blue1Brown) [video] (youtube.com)
717 points by espeed 11 days ago | 51 comments
6. When optimising code, never guess, always measure (solipsys.co.uk)
124 points by ColinWright 13 days ago | 102 comments
7. Ask HN: What are your favorite non-fiction books of all time?
134 points by StriverGuy 13 days ago | 86 comments
8. My bag of tricks – loose notes, design patterns, rules-of-thumb (gordonbrander.com)
412 points by necrodome 18 days ago | 79 comments
9. Ask HN: What do you struggle with?
365 points by meesterdude 20 days ago | 533 comments
10. Lego Axle Sorter [video] (youtube.com)
213 points by dgtlmoon 21 days ago | 26 comments
11. Products Are Functions (feltpresence.com)
89 points by tobr 34 days ago | 27 comments
12. Bluetooth Low Energy Swiss-Army Knife (github.com)
107 points by okket 36 days ago | 25 comments
13. The Design is the Implementation (danshumway.com)
67 points by danShumway 34 days ago | 21 comments
14. Project Natick – Underwater datacenter with live cameras (microsoft.com)
81 points by kerng 36 days ago | 33 comments
15. Dijkstra's in Disguise (evjang.com)
450 points by ColinWright 36 days ago | 26 comments
16. A visual history of the future (2014) [pdf] (service.gov.uk)
78 points by raleighm 37 days ago | 2 comments
17. Programming in an Interactive Environment: The “Lisp” Experience (1978) [pdf] (softwarepreservation.org)
73 points by lispm 38 days ago | 2 comments
18. Ask HN: What are some niche communities you enjoy?
437 points by lainon 44 days ago | 342 comments
19. 4D toys (4dtoys.com)
592 points by wenderen 45 days ago | 110 comments
20. Learning from Terminals to Design the Future of User Interfaces (brandur.org)
785 points by juancampa 45 days ago | 370 comments
21. Filament: Physically-based rendering engine (google.github.io)
599 points by corysama 45 days ago | 125 comments
22. Why a Typical Home Solar Setup Does Not Work with the Grid Down (syonyk.blogspot.com)
443 points by cesarb 48 days ago | 269 comments
23. My Own Car System, Rear Camera, Offline Maps and Routing with Go (nobugware.com)
287 points by robteix 48 days ago | 66 comments
24. NASA’s 3D-Printed Habitat Competition (nasa.gov)
59 points by soulmerge 50 days ago | 13 comments
25. Evolving Floorplans (joelsimon.net)
240 points by prakashk 49 days ago | 105 comments
26. Light Painting Machine [video] (youtube.com)
77 points by cpdt 51 days ago | 4 comments
27. A new shape called the scutoid has been discovered in our cells (gizmodo.com)
80 points by ColinWright 52 days ago | 16 comments
28. Ask HN: What are the best Sci-Fi books you've ever read?
92 points by rayalez 64 days ago | 137 comments
29. J.C. Bose: 60 GHz in the 1890s (nrao.edu)
194 points by userbinator 64 days ago | 25 comments
30. How I use Wireshark (jvns.ca)
552 points by ingve 3 months ago | 94 comments
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