2019-07-31 front | Hacker News

Stories from July 31, 2019

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1.		Filling hospitals with art reduces patient stress, anxiety and pain (designweek.co.uk)
		502 points by rchaudhary on July 31, 2019 \| 143 comments
2.		LightSail 2 Spacecraft Successfully Demonstrates Flight by Light (planetary.org)
		640 points by spazz on July 31, 2019 \| 144 comments
3.		A Raspberry Pi-powered live train station sign (balena.io)
		642 points by chrisys on July 31, 2019 \| 141 comments
4.		Math Basics for Computer Science and Machine Learning [pdf] (upenn.edu)
		883 points by oldgun on July 30, 2019 \| 118 comments
5.		A Brief Guide to a Few Algebraic Structures (argumatronic.com)
		266 points by edgarvm on July 31, 2019 \| 47 comments
6.		A Look at Overnight Stays at US National Parks (jordan-vincent.com)
		318 points by skilled on July 30, 2019 \| 98 comments
7.		Tree planting: Where can I do it and which type is best? (bbc.co.uk)
		302 points by pmoriarty on July 31, 2019 \| 210 comments
8.		Equifax removed the $125 claim payout option after millions submitted claims (twitter.com/laurasullivanpr)
		600 points by pavel_lishin on July 31, 2019 \| 441 comments
9.		A $5,600 Electric Makeover for Old Diesel Cars (bloomberg.com)
		254 points by rihegher on July 31, 2019 \| 194 comments
10.		Kriegspiel (wikipedia.org)
		291 points by tosh on July 31, 2019 \| 88 comments
11.		As crime dries up, Japan’s police hunt for things to do (2017) (economist.com)
		201 points by tareqak on July 31, 2019 \| 336 comments
12.		An F-22 Raptor’s Crumbling Radar Absorbent Skin (thedrive.com)
		194 points by Alupis on July 31, 2019 \| 238 comments
13.		TSMC Talks 7nm, 5nm, Yield, and Next-Gen 5G and HPC Packaging (wikichip.org)
		176 points by rbanffy on July 31, 2019 \| 77 comments
14.		Implement mechanism to wait on any of several futexes (lkml.org)
		244 points by yankcrime on July 31, 2019 \| 154 comments
15.		Advertising Is a Cancer on Society (jacek.zlydach.pl)
		692 points by TeMPOraL on July 31, 2019 \| 640 comments
16.		Web Scraping and Crawling Are Perfectly Legal, Right? (2017) (benbernardblog.com)
		204 points by heshiebee on July 30, 2019 \| 125 comments
17.		Introduction to Bayesian Filter (leimao.github.io)
		167 points by keyboardman on July 30, 2019 \| 7 comments
18.		Amazon as experiment (ben-evans.com)
		185 points by notlukesky on July 30, 2019 \| 65 comments
19.		Stop Blaming America’s Poor for Their Poverty (bloomberg.com)
		300 points by stablemap on July 30, 2019 \| 366 comments
20.		DSVPN – VPN using TCP at port 80 and 443 (github.com/jedisct1)
		195 points by northfoxz on July 31, 2019 \| 110 comments
21.		Elementary Algebra (1971) [pdf] (softwarepreservation.org)
		127 points by tosh on July 30, 2019 \| 4 comments
22.		Launch HN: Hatchways (YC S19) – Internships Instead of Interviews
		267 points by jaclynmling on July 31, 2019 \| 81 comments
23.		The Moon is older than previously believed (phys.org)
		123 points by dnetesn on July 30, 2019 \| 21 comments
24.		Amazon, Walmart, Ikea targeted in University of California light bulb lawsuits (reuters.com)
		131 points by hhs on July 30, 2019 \| 95 comments
25.		Graph database reinvented: Dgraph gets $11.5M to pursue unique, opinionated path (zdnet.com)
		189 points by bryanrasmussen on July 31, 2019 \| 93 comments
26.		Building Payments for an Insurance Startup (moderntreasury.com)
		133 points by saarons on July 31, 2019 \| 36 comments
27.		First Programmable Memristor Computer (ieee.org)
		95 points by headalgorithm on July 31, 2019 \| 34 comments
28.		Marvin Minsky and the Ultimate Tinker Toy (tinlizzie.org)
		93 points by mpweiher on July 31, 2019 \| 4 comments
29.		The Origin of Most Coal on Earth (2016) (nationalgeographic.com)
		111 points by lordnacho on July 30, 2019 \| 66 comments
30.		Espresso Machine Powered by Tcl/Tk (groups.google.com)
		136 points by blacksqr on July 31, 2019 \| 43 comments
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