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The only U.S. particle collider shuts down

https://www.sciencenews.org/article/particle-collider-shuts-down-brookhaven
1•rolph•2m ago•0 comments

Ask HN: Why do purchased B2B email lists still have such poor deliverability?

1•solarisos•3m ago•0 comments

Show HN: Remotion directory (videos and prompts)

https://www.remotion.directory/
1•rokbenko•4m ago•0 comments

Portable C Compiler

https://en.wikipedia.org/wiki/Portable_C_Compiler
1•guerrilla•7m ago•0 comments

Show HN: Kokki – A "Dual-Core" System Prompt to Reduce LLM Hallucinations

1•Ginsabo•7m ago•0 comments

Software Engineering Transformation 2026

https://mfranc.com/blog/ai-2026/
1•michal-franc•8m ago•0 comments

Microsoft purges Win11 printer drivers, devices on borrowed time

https://www.tomshardware.com/peripherals/printers/microsoft-stops-distrubitng-legacy-v3-and-v4-pr...
2•rolph•9m ago•0 comments

Lunch with the FT: Tarek Mansour

https://www.ft.com/content/a4cebf4c-c26c-48bb-82c8-5701d8256282
2•hhs•12m ago•0 comments

Old Mexico and her lost provinces (1883)

https://www.gutenberg.org/cache/epub/77881/pg77881-images.html
1•petethomas•15m ago•0 comments

'AI' is a dick move, redux

https://www.baldurbjarnason.com/notes/2026/note-on-debating-llm-fans/
2•cratermoon•17m ago•0 comments

The source code was the moat. But not anymore

https://philipotoole.com/the-source-code-was-the-moat-no-longer/
1•otoolep•17m ago•0 comments

Does anyone else feel like their inbox has become their job?

1•cfata•17m ago•0 comments

An AI model that can read and diagnose a brain MRI in seconds

https://www.michiganmedicine.org/health-lab/ai-model-can-read-and-diagnose-brain-mri-seconds
2•hhs•20m ago•0 comments

Dev with 5 of experience switched to Rails, what should I be careful about?

1•vampiregrey•22m ago•0 comments

AlphaFace: High Fidelity and Real-Time Face Swapper Robust to Facial Pose

https://arxiv.org/abs/2601.16429
1•PaulHoule•23m ago•0 comments

Scientists discover “levitating” time crystals that you can hold in your hand

https://www.nyu.edu/about/news-publications/news/2026/february/scientists-discover--levitating--t...
2•hhs•25m ago•0 comments

Rammstein – Deutschland (C64 Cover, Real SID, 8-bit – 2019) [video]

https://www.youtube.com/watch?v=3VReIuv1GFo
1•erickhill•26m ago•0 comments

Tell HN: Yet Another Round of Zendesk Spam

2•Philpax•26m ago•0 comments

Postgres Message Queue (PGMQ)

https://github.com/pgmq/pgmq
1•Lwrless•30m ago•0 comments

Show HN: Django-rclone: Database and media backups for Django, powered by rclone

https://github.com/kjnez/django-rclone
1•cui•32m ago•1 comments

NY lawmakers proposed statewide data center moratorium

https://www.niagara-gazette.com/news/local_news/ny-lawmakers-proposed-statewide-data-center-morat...
1•geox•34m ago•0 comments

OpenClaw AI chatbots are running amok – these scientists are listening in

https://www.nature.com/articles/d41586-026-00370-w
3•EA-3167•34m ago•0 comments

Show HN: AI agent forgets user preferences every session. This fixes it

https://www.pref0.com/
6•fliellerjulian•36m ago•0 comments

Introduce the Vouch/Denouncement Contribution Model

https://github.com/ghostty-org/ghostty/pull/10559
2•DustinEchoes•38m ago•0 comments

Show HN: SSHcode – Always-On Claude Code/OpenCode over Tailscale and Hetzner

https://github.com/sultanvaliyev/sshcode
1•sultanvaliyev•39m ago•0 comments

Microsoft appointed a quality czar. He has no direct reports and no budget

https://jpcaparas.medium.com/microsoft-appointed-a-quality-czar-he-has-no-direct-reports-and-no-b...
2•RickJWagner•40m ago•0 comments

Multi-agent coordination on Claude Code: 8 production pain points and patterns

https://gist.github.com/sigalovskinick/6cc1cef061f76b7edd198e0ebc863397
1•nikolasi•41m ago•0 comments

Washington Post CEO Will Lewis Steps Down After Stormy Tenure

https://www.nytimes.com/2026/02/07/technology/washington-post-will-lewis.html
14•jbegley•41m ago•3 comments

DevXT – Building the Future with AI That Acts

https://devxt.com
2•superpecmuscles•42m ago•4 comments

A Minimal OpenClaw Built with the OpenCode SDK

https://github.com/CefBoud/MonClaw
1•cefboud•43m ago•0 comments
Open in hackernews

HeartWatch: A Proactive Child Safety System

4•Richard_Damge•5mo ago
Overview HeartWatch is a real-time child safety monitoring concept that combines biometric heart rate data, GPS tracking, and ambient audio into a single, proactive system. It's designed to help parents, guardians, and institutions detect early signs of distress or danger in children and respond with speed and confidence.

Core Features Proactive Heart Rate Monitoring Integrates with a wearable device (smartwatch, band, etc.) to continuously monitor a child's heart rate. The app uses advanced algorithms to recognize patterns that indicate fear, panic, or physical distress, triggering immediate alerts for the guardian.

  Live GPS Tracking with Geofencing
Provides live, real-time location tracking. Guardians receive instant alerts when a child enters or exits predefined "safe zones" such as home, school, or a designated play area.

  Ambient Audio Capture
When a heart rate anomaly is detected or a geofence is breached, the app can automatically and securely record a short audio clip. This feature helps guardians assess the situation by capturing potential verbal distress or threats in the child's immediate surroundings.

  One-Tap Emergency Response
In an emergency, guardians can instantly forward the child's live location, biometric data, and any captured audio to emergency services with a single tap. The system could also include an optional panic button on the child's wearable for immediate alerts.

  Privacy and Security
Privacy is at the core of the design. All features are strictly guardian-controlled. Audio is only captured in response to a potential threat, and all data is secured with end-to-end encryption.

Target Users: Parents of children aged 4–14. Guardians of children with health conditions or anxiety. Schools and daycares seeking an advanced safety tool. Child welfare agencies and programs for at-risk youth.

Potential Integrations & Future Directions:

Integrate with existing wearables like Apple Watch, Fitbit, and Garmin.

Develop a custom wearable specifically designed for children (e.g., the "HeartWatch Band"). Expand to other biometric data, such as skin temperature or stress levels.

Declaration of Free Use: I release this concept, HeartWatch, into the public domain. Anyone is free to build, adapt, or deploy it in part or whole — with no need for permission, credit, or compensation. My sole intention is to see this concept applied to enhance child safety and preserve lives. HeartWatch: A Proactive Child Safety System by Richard Damge is marked CC0 1.0. To view a copy of this mark, visit https://creativecommons.org/publicdomain/zero/1.0/

Comments

allegoric•5mo ago
I think this IP may have already been copyrighted:

https://en.wikipedia.org/wiki/Arkangel_(Black_Mirror)

OnACoffeeBreak•5mo ago
What's the method for connecting the watch to the Internet?

Garmin Bounce [0] has some of the features on your list and many more (like on-watch LTE). I don't believe it includes the ability to use heart rate and stress levels to trigger automatic alerts. I have no first-hand knowledge in this field, but I would imagine it would be very difficult to implement this without many false positives especially for kids in the day care and school settings because excitement and play likely look very similar to anxiety and distress from the point of view of the heart rate sensor.

0: https://www.garmin.com/en-US/p/714945/pn/010-02448-02/

Richard_Damge•5mo ago
False Positives can be mostly mitigated using historical data. If the child is consistently meeting alert criteria at a specific time (ie. Mon-Fri at 1300-1330 for Recess), alert is logged but no notification sent, unless toggled otherwise. The real challenge is the power consumption. Consistent monitoring burns a lot of power, someone smarter than me should figure it out.