2026-04-18 front | Hacker News

Stories from April 18, 2026 (UTC)

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1.		Migrating from DigitalOcean to Hetzner (isayeter.com)
		847 points by yusufusta 1 day ago \| 417 comments
2.		Why Japan has such good railways (worksinprogress.co)
		495 points by RickJWagner 1 day ago \| 462 comments
3.		Anonymous request-token comparisons from Opus 4.6 and Opus 4.7 (billchambers.me)
		582 points by anabranch 1 day ago \| 553 comments
4.		State of Kdenlive (kdenlive.org)
		447 points by f_r_d 1 day ago \| 136 comments
5.		All 12 moonwalkers had "lunar hay fever" from dust smelling like gunpowder (2018) (esa.int)
		449 points by cybermango 1 day ago \| 264 comments
6.		The electromechanical angle computer inside the B-52 bomber's star tracker (righto.com)
		386 points by NelsonMinar 1 day ago \| 100 comments
7.		Sumida Aquarium Posts 2026 Penguin Relationship Chart, with Drama and Breakups (sumida-aquarium.com)
		231 points by Lwrless 3 days ago \| 16 comments
8.		NIST scientists create 'any wavelength' lasers (nist.gov)
		382 points by rbanffy 20 hours ago \| 162 comments
9.		Michael Rabin has died (wikipedia.org)
		411 points by tkhattra 3 days ago \| 84 comments
10.		Are the costs of AI agents also rising exponentially? (2025) (tobyord.com)
		301 points by louiereederson 4 days ago \| 125 comments
11.		Amiga Graphics Archive (lychesis.net)
		254 points by sph 1 day ago \| 79 comments
12.		Hyperscalers have already outspent most famous US megaprojects (twitter.com/finmoorhouse)
		279 points by nowflux 2 days ago \| 269 comments
13.		"cat readme.txt" is not safe if you use iTerm2 (calif.io)
		303 points by arkadiyt 1 day ago \| 181 comments
14.		Category Theory Illustrated – Orders (abuseofnotation.github.io)
		245 points by boris_m 1 day ago \| 62 comments
15.		Brunost: The Nynorsk Programming Language (lindbakk.com)
		139 points by atomfinger 5 days ago \| 72 comments
16.		Thoughts and feelings around Claude Design (samhenri.gold)
		347 points by cdrnsf 22 hours ago \| 225 comments
17.		Show HN: I made a calculator that works over disjoint sets of intervals (victorpoughon.github.io)
		304 points by fouronnes3 1 day ago \| 51 comments
18.		Towards trust in Emacs (eshelyaron.com)
		186 points by eshelyaron 4 days ago \| 31 comments
19.		Slop Cop (awnist.com)
		241 points by ericHosick 2 days ago \| 159 comments
20.		Show HN: MDV – a Markdown superset for docs, dashboards, and slides with data (github.com/drasimwagan)
		133 points by drasim 1 day ago \| 49 comments
21.		Scientists discover “cleaner ants” that groom giant ants in Arizona desert (sciencedaily.com)
		115 points by t-3 3 days ago \| 43 comments
22.		Optimizing Ruby Path Methods (byroot.github.io)
		122 points by weaksauce 20 hours ago \| 46 comments
23.		It's OK to compare floating-points for equality (lisyarus.github.io)
		208 points by coinfused 5 days ago \| 131 comments
24.		80386 Memory Pipeline (nand2mario.github.io)
		114 points by wicket 5 days ago \| 18 comments
25.		Landmark ancient-genome study shows surprise acceleration of human evolution (nature.com)
		116 points by unsuspecting 1 day ago \| 149 comments
26.		Understanding the FFT Algorithm (2013) (jakevdp.github.io)
		105 points by peter_d_sherman 4 days ago \| 11 comments
27.		Fuzix OS (fuzix.org)
		108 points by DeathArrow 1 day ago \| 29 comments
28.		The simple geometry behind any road (sandboxspirit.com)
		140 points by azhenley 3 days ago \| 16 comments
29.		The Unix executable as a Smalltalk method (2025) [video] (youtube.com)
		69 points by surprisetalk 3 days ago \| 5 comments
30.		The quiet disappearance of the free-range childhood (bigthink.com)
		241 points by sylvainkalache 1 day ago \| 255 comments
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