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Why do phones still use battery when powered off? (engadget.com)

2026-07-26 | by Christine Persaud | tags: android, blackberry, battery

Gaming PC saves owner from bullet fired by neighbor's dog (techspot.com)

2026-06-11 | by Rob Thubron | get Gaming PC with RGB Lighting → | tags: angelbabyzz, broken, bullet

Tesla's lithium refinery discharges 231,000 gallons of polluted wastewater a day (news.ycombinator.com)

2026-05-19 | by With More Than Years Covering The Automotive Industry | get Tesla Lithium Refinery Water Test Kit → | tags: tesla, lithium refinery, spodumene

This ultra-cheap, water-based iron battery could last 16 years without degrading (techspot.com)

2026-05-01 | get Water-Based Iron Battery Kit → | tags: iron flow battery, chinese academy of sciences, advanced energy materials

Ultraviolet corona discharges on treetops during storms (news.ycombinator.com)

2026-04-22 | get UV Storm Safety Light → | tags: corona discharges, ultraviolet, penn state

Ultraviolet corona discharges on treetops (news.ycombinator.com)

2026-04-22 | get UV LED Flashlight → | tags: corona discharges, ultraviolet, penn state

Treetops glowing during storms captured on film for first time (news.ycombinator.com)

2026-04-22 | get Storm Light Projector → | tags: treetops, corona discharges, penn state

IEEE Professional Development Suite Teaches In-Demand Skills (spectrum.ieee.org)

2026-03-27 | by Angelique Parashis | get IEEE Professional Development Course → | tags: ieee, telecommunications, microelectronics

Show HN: Vanilla JavaScript refinery simulator built to explain job to my kids (news.ycombinator.com)

2026-03-11 | by Taylor Bloomquist | get Refinery Simulator → | tags: acid, discharge, open

10.

Nexperia China begins making its own chips after split with Dutch parent (techspot.com)

2026-03-11 | get Nexperia Semiconductor Development Kit → | tags: nexperia, china, bipolar discrete

11.

Practical lithium–organic batteries enabled by an n-type conducting polymer (feeds.nature.com)

2026-02-18 | by Li | get Nanocellulose battery → | tags: cathode, charge, charge discharge

12.

How coal mine waste could power America’s next clean energy movement (feeds.feedburner.com)

2026-01-25 | get Solar Power → | tags: abandoned coal, acid, acid drainage

13.

NASA Rover Captures Electric Dust Devils Wandering the Surface of Mars (futurism.com)

2025-12-13 | by Frank Landymore | get Dust Devil → | tags: atmosphere, discharges, dust

Today's top topics: openai apple microsoft meta samsung china chatgpt anthropic ai data centers tesla

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