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Show HN: Stacky – certain block game clone

https://www.susmel.com/stacky/
2•Keyframe•3m ago•0 comments

AIII: A public benchmark for AI narrative and political independence

https://github.com/GRMPZQUIDOS/AIII
1•GRMPZ23•3m ago•0 comments

SectorC: A C Compiler in 512 bytes

https://xorvoid.com/sectorc.html
1•valyala•4m ago•0 comments

The API Is a Dead End; Machines Need a Labor Economy

1•bot_uid_life•5m ago•0 comments

Digital Iris [video]

https://www.youtube.com/watch?v=Kg_2MAgS_pE
1•Jyaif•6m ago•0 comments

New wave of GLP-1 drugs is coming–and they're stronger than Wegovy and Zepbound

https://www.scientificamerican.com/article/new-glp-1-weight-loss-drugs-are-coming-and-theyre-stro...
3•randycupertino•8m ago•0 comments

Convert tempo (BPM) to millisecond durations for musical note subdivisions

https://brylie.music/apps/bpm-calculator/
1•brylie•10m ago•0 comments

Show HN: Tasty A.F.

https://tastyaf.recipes/about
1•adammfrank•11m ago•0 comments

The Contagious Taste of Cancer

https://www.historytoday.com/archive/history-matters/contagious-taste-cancer
1•Thevet•12m ago•0 comments

U.S. Jobs Disappear at Fastest January Pace Since Great Recession

https://www.forbes.com/sites/mikestunson/2026/02/05/us-jobs-disappear-at-fastest-january-pace-sin...
1•alephnerd•13m ago•0 comments

Bithumb mistakenly hands out $195M in Bitcoin to users in 'Random Box' giveaway

https://koreajoongangdaily.joins.com/news/2026-02-07/business/finance/Crypto-exchange-Bithumb-mis...
1•giuliomagnifico•13m ago•0 comments

Beyond Agentic Coding

https://haskellforall.com/2026/02/beyond-agentic-coding
3•todsacerdoti•14m ago•0 comments

OpenClaw ClawHub Broken Windows Theory – If basic sorting isn't working what is?

https://www.loom.com/embed/e26a750c0c754312b032e2290630853d
1•kaicianflone•16m ago•0 comments

OpenBSD Copyright Policy

https://www.openbsd.org/policy.html
1•Panino•17m ago•0 comments

OpenClaw Creator: Why 80% of Apps Will Disappear

https://www.youtube.com/watch?v=4uzGDAoNOZc
2•schwentkerr•20m ago•0 comments

What Happens When Technical Debt Vanishes?

https://ieeexplore.ieee.org/document/11316905
2•blenderob•22m ago•0 comments

AI Is Finally Eating Software's Total Market: Here's What's Next

https://vinvashishta.substack.com/p/ai-is-finally-eating-softwares-total
3•gmays•22m ago•0 comments

Computer Science from the Bottom Up

https://www.bottomupcs.com/
2•gurjeet•23m ago•0 comments

Show HN: A toy compiler I built in high school (runs in browser)

https://vire-lang.web.app
1•xeouz•24m ago•1 comments

You don't need Mac mini to run OpenClaw

https://runclaw.sh
1•rutagandasalim•25m ago•0 comments

Learning to Reason in 13 Parameters

https://arxiv.org/abs/2602.04118
2•nicholascarolan•27m ago•0 comments

Convergent Discovery of Critical Phenomena Mathematics Across Disciplines

https://arxiv.org/abs/2601.22389
1•energyscholar•27m ago•1 comments

Ask HN: Will GPU and RAM prices ever go down?

1•alentred•28m ago•2 comments

From hunger to luxury: The story behind the most expensive rice (2025)

https://www.cnn.com/travel/japan-expensive-rice-kinmemai-premium-intl-hnk-dst
2•mooreds•28m ago•0 comments

Substack makes money from hosting Nazi newsletters

https://www.theguardian.com/media/2026/feb/07/revealed-how-substack-makes-money-from-hosting-nazi...
6•mindracer•29m ago•0 comments

A New Crypto Winter Is Here and Even the Biggest Bulls Aren't Certain Why

https://www.wsj.com/finance/currencies/a-new-crypto-winter-is-here-and-even-the-biggest-bulls-are...
1•thm•29m ago•0 comments

Moltbook was peak AI theater

https://www.technologyreview.com/2026/02/06/1132448/moltbook-was-peak-ai-theater/
2•Brajeshwar•30m ago•0 comments

Why Claude Cowork is a math problem Indian IT can't solve

https://restofworld.org/2026/indian-it-ai-stock-crash-claude-cowork/
3•Brajeshwar•30m ago•0 comments

Show HN: Built an space travel calculator with vanilla JavaScript v2

https://www.cosmicodometer.space/
2•captainnemo729•31m ago•0 comments

Why a 175-Year-Old Glassmaker Is Suddenly an AI Superstar

https://www.wsj.com/tech/corning-fiber-optics-ai-e045ba3b
1•Brajeshwar•31m ago•0 comments
Open in hackernews

Laminar Flow Airfoil

http://www.aviation-history.com/theory/lam-flow.htm
33•colinprince•6mo ago

Comments

upofadown•6mo ago
At my gliding club there is an older glider with a large toggle switch on the panel. That switch is labeled "BUGS". Always amuses me...

The "BUGS" switch is an input to whatever that glider uses for a flight computer. A single bug splat disrupts the laminar flow and significantly reduces the performance of the wing in that spot. Enough splats and you have to let the flight computer know that the performance of the glider has significantly decreased. In practice that affects things like the final glide calculation. Without the adjustment you might think you have gained enough altitude to get back to the gliderport without having to climb again, but you could end up a bit short.

bilsbie•6mo ago
You’d think it would be the opposite and they’d be like golf ball dimples.
carabiner•6mo ago
Not when the flow is initially attached.
ks1723•6mo ago
What really surprised me when I heard about it was that even after all those decades of research and development, there was still room to develop novel laminar flow wings and fuselage to be used in a business jet[1] in the early 2000s.

[1] https://global.honda/en/products/HondaJet/innovation/innovat...

https://www.hondajet.com/-/media/HondaJet/Documents/Technica...

K0balt•6mo ago
For a while I flew an aero commander 100 “darter” (not the 112 low wing type) that looked like a Cessna 172 with a Mooney tail. It had a couple of cool innovations, fiberglass leaf springs for the landing gear, and a laminar flow airfoil. The gear was great, flexible without feeling springy, and the airfoil gave me about a 0.5-1gph cruise efficiency improvement over the 172 with the same engine/prop at the same speed. (Depending on how clean/waxed the wing was, rain, etc)

The wing was not good for bush flying though, it was either flying or not flying, not much middle ground. Popping off in ground effect to accelerate was much less effective than in a 172.

The stall break was a slight burble, then a clean break with no extra warning. The airplane was well mannered, though, hard to get it to drop a wing, and very controllable in a falling leaf stall.

satiated_grue•6mo ago
I recall hearing many years ago about undesirable flight characteristics of the Rutan Vari-Eze when the laminar flow canard got too contaminated with bugs and became very nose-heavy.

A solution adopted by many owners was to put micro vortex generators on the upper surface, which wasn't great for the laminar flow, but maintained predictable flying characteristics irrespective of contamination.

That had potential risks, though, because the airplane was designed to have the canard stall before the main wing, which would lower the nose and prevent the main wing from ever stalling - eliminating the possibility of the stall/spin accident. Adding the vortex generators could change the aerodynamics enough to the point where the main wing could be stalled before the canard. At that point, since you have no downward-lift-generating tail surface, breaking the stall can be difficult and you could end up in an unrecoverable stable "deep stall".

Now there are cases where you can see vortex generators on both the upper and lower surfaces of some control surfaces, as on the Quest Kodiak, to provide better low-speed authority in the wing stall regime.