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Show HN: 32V TENS device from built from scratch under $100

https://littlemountainman.github.io/2025/11/17/tens/
4•autonomydriver•3d ago

Comments

dmitrygr•19m ago
> down to ~3.0V (discharged).

That is NOT how one uses lithium batteries one foe snot want to go boom. Consider 3.6V as empty. Discharging them down to 3.0 can cause them to go boom when recharged...

cenamus•14m ago
Of course you can go down there? That's literally the lower limit of design voltage?

Below 2,5V is usually when you don't wanna use them anymore

Olmo 3: Charting a path through the model flow to lead open-source AI

https://allenai.org/blog/olmo3
63•mseri•1h ago•7 comments

It's Hard to Build an Oscillator

https://lcamtuf.substack.com/p/its-hard-to-build-an-oscillator
12•chmaynard•42m ago•1 comments

Streaming platform Twitch added to Australia's teen social media ban

https://www.bbc.com/news/articles/cx2n2955g10o
18•Erikun•1h ago•18 comments

Nano Banana Pro

https://blog.google/technology/ai/nano-banana-pro/
1021•meetpateltech•17h ago•595 comments

WebAssembly from the Ground Up

https://wasmgroundup.com/
74•gurjeet•5d ago•14 comments

Android and iPhone users can now share files, starting with the Pixel 10

https://blog.google/products/android/quick-share-airdrop/
635•abraham•15h ago•359 comments

FEX-emu – Run x86 applications on ARM64 Linux devices

https://fex-emu.com/
168•open-paren•1w ago•56 comments

Over-regulation is doubling the cost

https://rein.pk/over-regulation-is-doubling-the-cost
167•bilsbie•9h ago•268 comments

Show HN: 32V TENS device from built from scratch under $100

https://littlemountainman.github.io/2025/11/17/tens/
4•autonomydriver•3d ago•2 comments

New OS aims to provide (some) compatibility with macOS

https://github.com/ravynsoft/ravynos
211•kasajian•12h ago•99 comments

Hilbert space: Treating functions as vectors

https://eli.thegreenplace.net/2025/hilbert-space-treating-functions-as-vectors/
50•signa11•1w ago•22 comments

New Glenn Update

https://www.blueorigin.com/news/new-glenn-upgraded-engines-subcooled-components-drive-enhanced-pe...
160•rbanffy•11h ago•86 comments

Historical Reasons

https://exple.tive.org/blarg/2025/11/11/historical-reasons-2/
7•speckx•1w ago•3 comments

NTSB Preliminary Report – UPS Boeing MD-11F Crash [pdf]

https://www.ntsb.gov/Documents/Prelimiary%20Report%20DCA26MA024.pdf
171•gregsadetsky•14h ago•175 comments

Data-at-Rest Encryption in DuckDB

https://duckdb.org/2025/11/19/encryption-in-duckdb
165•chmaynard•13h ago•16 comments

The Lions Operating System

https://lionsos.org
154•plunderer•14h ago•36 comments

Okta's NextJS-0auth troubles

https://joshua.hu/ai-slop-okta-nextjs-0auth-security-vulnerability
277•ramimac•2d ago•102 comments

Free interactive tool that shows you how PCIe lanes work on motherboards

https://mobomaps.com
191•tagyro•2d ago•39 comments

CBP is monitoring US drivers and detaining those with suspicious travel patterns

https://apnews.com/article/immigration-border-patrol-surveillance-drivers-ice-trump-9f5d05469ce8c...
685•jjwiseman•12h ago•748 comments

GitHut – Programming Languages and GitHub (2014)

https://githut.info/
68•tonyhb•10h ago•23 comments

Show HN: F32 – An Extremely Small ESP32 Board

https://github.com/PegorK/f32
228•pegor•1d ago•39 comments

Adversarial poetry as a universal single-turn jailbreak mechanism in LLMs

https://arxiv.org/abs/2511.15304
272•capgre•20h ago•145 comments

Two recently found works of J.S. Bach presented in Leipzig [video]

https://www.youtube.com/watch?v=4hXzUGYIL9M#t=15m19s
138•Archelaos•3d ago•84 comments

Show HN: My hobby OS that runs Minecraft

https://astral-os.org/posts/2025/10/31/astral-minecraft.html
167•avaliosdev•3d ago•16 comments

Microsoft makes Zork open-source

https://opensource.microsoft.com/blog/2025/11/20/preserving-code-that-shaped-generations-zork-i-i...
544•tabletcorry•14h ago•211 comments

Tube: A subway route planner in Dyalog APL (2011)

https://dfns.dyalog.com/tube_n_index.htm
12•shawa_a_a•4d ago•3 comments

Interactive World History Atlas Since 3000 BC

http://geacron.com/home-en/
314•not_knuth•22h ago•132 comments

Launch HN: Poly (YC S22) – Cursor for Files

52•aabhay•14h ago•55 comments

Measuring Latency (2015)

https://bravenewgeek.com/everything-you-know-about-latency-is-wrong/
23•dempedempe•6h ago•8 comments

Ask HN: How are Markov chains so different from tiny LLMs?

160•JPLeRouzic•3d ago•121 comments