WiFi signals can measure heart rate–no wearables needed - https://news.ucsc.edu/2025/09/pulse-fi-wifi-heart-rate/#hackernews

A programmable display using microfluidics - https://www.youtube.com/watch?v=rf-efIZI_Dg#hackernews

Saquon Is Playing for Equity - https://www.readtheprofile.com/p/saquon-barkley-investment-portfolio#hackernews

Google deletes net-zero pledge from sustainability website - https://www.nationalobserver.com/2025/09/04/investigations/google-net-zero-sustainability#hackernews

Artie (YC S23) Is Hiring Engineers, AES, and Senior PMM - https://www.ycombinator.com/companies/artie/jobs#hackernews

Stripe Launches L1 Blockchain: Tempo - https://tempo.xyz#hackernews

Launch HN: Slashy (YC S25) – AI that connects to apps and does tasks - https://news.ycombinator.com/item?id=45129031#hackernews

Show HN: I built FlipCards – a flashcard app with variations to improve learning - https://flipcardsapp.vercel.app/#hackernews

Show HN: A Map of All YC Companies (5,300 Startups by Batch and Location) - https://yc.foundersaround.com/#hackernews

Browser Company (makers of Arc browser) Acquired By Atlassian for $610M - https://browsercompany.substack.com/p/your-tuesday-in-2030#hackernews

Hollow Knight: Silksong Causes Server Chaos on Xbox, Steam, and Nintendo - https://www.eurogamer.net/silksong-causes-server-chaos-on-xbox-steam-and-nintendo-as-platforms-grind-to-a-halt#hackernews

Thunk: Build Rust program to support Windows XP, Vista and more - https://github.com/felixmaker/thunk#hackernews

Atlassian is acquiring the Browser Company - https://www.cnbc.com/2025/09/04/atlassian-the-browser-company-deal.html#hackernews

Calling your boss a dickhead is not a sackable offence, UK tribunal rules - https://www.theguardian.com/money/2025/sep/04/calling-your-boss-a-dickhead-is-not-a-sackable-offence-tribunal-rules#hackernews

The Hand-Drawn Hits That Hollywood Isn't Making - https://animationobsessive.substack.com/p/the-hand-drawn-hits-that-hollywood#hackernews

Electromechanical Reshaping Offers Safer Eye Surgery - https://spectrum.ieee.org/electrochemistry-for-eye-surgeries#hackernews

Polycyclic Aromatic Hydrocarbons - https://johncarlosbaez.wordpress.com/2025/09/01/polycyclic-aromatic-hydrocarbons/#hackernews

The company behind the Dia and Arc browsers is being acquired - https://www.theverge.com/web/770947/browser-company-arc-dia-acquired-atlassian#hackernews

We Found the Hidden Cost of Data Centers. It's in Your Electric Bill [video] - https://www.youtube.com/watch?v=YN6BEUA4jNU#hackernews

Google's $45M contract to spread Netanyahu's propaganda - https://jackpoulson.substack.com/p/googles-45-million-contract-with#hackernews