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Claude: System Prompts

https://platform.claude.com/docs/en/release-notes/system-prompts
341•tosh•5h ago•145 comments

The AI Credit Resale Economy

https://vectoral.com/blog/who-are-the-token-brokers
133•mlenhard•3h ago•52 comments

St Lucie Nuclear Reactor Unit 1 manually shutdown, 3 control rods drop into core

https://www.wptv.com/news/treasure-coast/region-st-lucie-county/saint-lucie-nuclear-power-plant-u...
77•toomuchtodo•2h ago•48 comments

NIH is ending a key grant for budding clinical researchers

https://www.science.org/content/article/nih-ending-key-grant-budding-clinical-researchers
42•brandonb•1h ago•9 comments

Anton Chekhov played at love most of his life

https://commonreader.wustl.edu/winning-and-losing-at-the-great-game-of-intimacy/
24•lermontov•1d ago•1 comments

A 3rd World Embedded Engineer Responds to "RISC-V They Should Have Known Better"

https://rvembedded.com/blog_post/12/
24•Narishma•1h ago•12 comments

GPS and the Lost Art of Getting Lost

https://www.newyorker.com/news/annals-of-inquiry/gps-and-the-lost-art-of-getting-lost
32•karakoram•3h ago•22 comments

Clamiga: Common Lisp for the Amiga

https://nnamgreb.de/blog/Clamiga+-+Common+Lisp+for+the+Amiga
37•emptybits•3d ago•2 comments

Archie G. Norcross' Maine Forest Fire Maps (1918–22)

https://publicdomainreview.org/collection/maine-forest-fire-maps/
13•samclemens•3d ago•2 comments

Firefox for iOS now has a native adblocker

https://support.mozilla.org/en-US/kb/block-ads-firefox-ios
317•pentagrama•5h ago•125 comments

Plastic mechanical computer from 1963: The Digi-Comp 1 [video]

https://www.youtube.com/watch?v=-y8bGBE71yw
7•tobr•21h ago•1 comments

Before Rightmove, there was the Cosmorama

https://www.ianvisits.co.uk/articles/before-rightmove-there-was-the-cosmorama-londons-forgotten-p...
9•brod_ie•5d ago•1 comments

A True Telnet BBS on a Casio Calculator

https://ei3lh.eu/2026/08/16/a-true-telnet-bbs-on-a-casio-calculator/
55•austinallegro•5h ago•7 comments

Tasklet (YC P26) Is Hiring a Head of Design Engineering

https://tasklet.ai/careers/head-of-design-engineering
1•mayop100•4h ago

The weekend is 100 years old

https://www.theguardian.com/money/2026/aug/16/the-weekend-is-100-years-old-skiveday-fridays-and-h...
82•lentil_soup•2h ago•46 comments

A SAT Attack on Tarski's High School Algebra Problem

https://arxiv.org/abs/2608.08421
61•matt_d•4d ago•20 comments

Chestnut – eGPU dock with open-source firmware

https://hwbusters.com/news/comma-ai-egpu-dock-runs-open-source-firmware-249-bare-799-with-an-rx-9...
109•txrx0000•2d ago•26 comments

Research papers using "kidney disappointment" instead of "kidney failure"

https://scholar.google.com/scholar?q=%22kidney+disappointment%22
253•Alifatisk•5h ago•97 comments

Asus Bike Booster

https://www.asus.com/accessories/bike-booster/asus-oxiis/oxiis-intelligent-bike-booster/
564•wiradikusuma•4d ago•390 comments

Superconducting monolayer cuprate with a single CuO2 plane

https://www.nature.com/articles/s41586-026-10857-1
51•sbulaev•3d ago•13 comments

Show HN: A public AI whose memory is shared across all users

https://wildstatic.com/
42•adjohu•4h ago•28 comments

Asynchronous I/O in DuckDB: Work, Thread, Work

https://duckdb.org/2026/07/31/asynchronous-io
248•pdet•6d ago•27 comments

AI Coding Without the Vibes

https://peterbloem.nl/blog/craft-coding
49•riskone•7h ago•23 comments

Ordinary WiFi can now identify you with near-perfect accuracy

https://www.sciencedaily.com/releases/2026/08/260811052857.htm
18•jonbaer•1h ago•25 comments

Does anyone run Postgres without PgBouncer?

https://brandur.org/fragments/postgres-without-pgbouncer
107•abelanger•3d ago•71 comments

Cultivating a state of mind where new ideas are born (2023)

https://www.henrikkarlsson.xyz/p/good-ideas
242•felixbraun•21h ago•58 comments

Super El Niño Keeps Growing as New Forecasts Reach Record Territory Ahead Winter

https://www.severe-weather.eu/long-range-2/super-el-nino-growth-accelerating-to-record-strength-f...
381•dgellow•22h ago•264 comments

Software Engineering fundamentals matter more

https://rhonabwy.com/2026/08/15/software-engineering-fundamentals-matter-more-than-ever/
271•ingve•19h ago•178 comments

Guiding Ships with Moire Patterns (2018)

https://tinkerings.org/2018/03/28/guiding-ships-with-moire-patterns/
101•Eridanus2•16h ago•25 comments

Semaglutide linked to lower predicted dementia risk

https://alz-journals.onlinelibrary.wiley.com/doi/10.1002/dad2.70432
466•randycupertino•1d ago•367 comments
Open in hackernews

Ordinary WiFi can now identify you with near-perfect accuracy

https://www.sciencedaily.com/releases/2026/08/260811052857.htm
18•jonbaer•1h ago

Comments

toomuchtodo•44m ago
Are there any projects or products today available for monitoring heart rate and respiration without needing a smart watch using this technology?
dotancohen•30m ago
No
forsalebypwner•8m ago
Yes actually, but I don't think it's technically allowed/legal in the US in the eyes of the FCC, not sure about other countries. It utilizes 77GHz FMCW, I got one for free but they retail for about $100. The part number is R77ABH1

Edit: sorry, you said "using this technology" and I missed that - this doesn't uses the same tech

toomuchtodo•5m ago
No worries, I presume it’s only a matter of time with consumer grade wifi and machine learning.
khriss•5m ago
Heart rate, no, but monitoring breathing is possible using mmWave radar(eg 60 GHz Doppler radar nowadays, or the 5.8 GHz band earlier). Resmed S+ was probably the most well known, but it's been discontinued for a while now. If you search around, you can still find such devices.
upboundspiral•34m ago
Unless we get legislation passed that bans this use in public and private spaces prepare for this to be combined with Flock et al to track your movements inside your house (already is being tested by some internet providers), track the moment you exit your house, track you along your route, track you inside all the business you visit.

Unless we do something, this will be used to covertly break the fourth amendment.

montroser•17m ago
This would be extremely difficult to detect and enforce.
iamnothere•6m ago
It’s invasive enough that we will need to do something about it, even if perfect enforcement is not possible. 6G wireless already plans to include these features as well. The business model needs to be made unviable or illegal somehow, perhaps under anti-stalking grounds.

Individuals may use this tech themselves, and businesses may use it on their own premises, which seems fine—the problem is with large scale deployments.

upboundspiral•1m ago
The Supreme court recently already ruled against warrantless mass surveillance along the lines you describe:

https://www.aclu.org/press-releases/aclu-applauds-important-...

What we need now is laws that turn this ruling into action and policy.

upboundspiral•5m ago
close04•25m ago
> These signals, known as beamforming feedback information (BFI), are transmitted without encryption, meaning that anyone within range can potentially read them.

> By analyzing that information, the system can generate images of people from multiple viewpoints. Those images can then be used to determine a person's identity.

This is the extent of the description of the magic sauce. Why are those images so unique that you can’t trick the algorithm? I can’t think of any EM based identification that can’t be tricked by adding layers of reflectors or absorbers in various points - a mask, special paint, etc.

mmooss•25m ago
> "By observing the propagation of radio waves, we can create an image of the surroundings and of persons who are present,"

Notice that it doesn't matter if you are using Wifi. If you're in a city, I doubt there are many places that lack Wifi radio waves.

Thank you to the researchers (seriously) for revealing this to the public rather than selling it to the highest bidder. Though I suspect that, given how obvious it is once you think about it - all these radio waves solve many problems of passive imaging - it's already known to some people.

im3w1l•10m ago
Wifi imaging has been a publicly known technique for years. I think the news is more how good it's gotten.
mmooss•22m ago
For those seeking the source:

> The researchers presented their results at the "ACM Conference on Computer and Communications Security" (CCS) in Taipei.

This citation at the bottom might be the paper:

Julian Todt, Felix Morsbach, Thorsten Strufe. BFId: Identity Inference Attacks Utilizing Beamforming Feedback Information. , DOI: 10.1145/3719027.3765062

opello•15m ago
Looks like it's open access:

https://dl.acm.org/doi/pdf/10.1145/3719027.3765062

Shadowmist•18m ago
How do I wire this to Home Assistant?
forsalebypwner•11m ago
Using this: https://github.com/francescopace/espectre
neom•17m ago
Paper: https://publikationen.bibliothek.kit.edu/1000185756/16810098...
im3w1l•15m ago
I'm personally bearish on privacy. As the cost of surveillance comes down we will see more and more actors able to conduct surveillance until even bored kids with pocket money and an afternoon can do it. Denying the """good""" guys the capabilities that all the bad guys have will be an absurdity.

We will simply have to adapt to it.

goda90•12m ago
How do we adapt?
iamnothere•4m ago
Never do anything that any group of people (or disturbed individual) might take issue with. Never accidentally date or marry an abuser. Never contest the absolute authority of whoever is in power. Simple enough, right?
im3w1l•4m ago
By creating a culture of live and let live. Maybe giving some activities legal protections that didn't use to need them in the past. Non-discrimination rules related to them. And being more careful than ever to not let a government be elected that would abuse all the information it now has on its citizenry. More democratic safeguards.
ambicapter•4m ago
The convenient accelerationist take that lets you do whatever you want, all the time.
hollow-moe•10m ago
Can't wait to see clothes with some thin metal wires knitted with the fabric acting like a Faraday cage or disturbing the signal enough to blur the results
thataccount•2m ago
I came from the era before WiFi. One doesn't HAVE to have WiFi. Everybody keeps thinking they do. Same thing with cell phones. The world existed before all that, and it can exist just fine again without it.
The spirit of a hacker is not to ask whether it is hard, but whether it is valuable.

I find protecting civil liberties valuable.