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The 124 best tech deals for day three of Prime Day

It’s day three of Prime Day, folks. We’re nearly 75 percent of the way through Amazon’s four-day sales event, and unsurprisingly, many deals are still sticking around. There have been all kinds of discounts on things like TVs, smart home gadgets, chargers, headphones, and more. Prime Day typically isn’t as big of a deal as […]

2026-06-25 原文 →
AI 资讯

Is this solar e-bike a good idea or sophisticated e-waste?

I like the idea of a solar-powered electric bike, but I don't think anyone should buy the new Phosgo Go5 - not yet, anyway. This "world's first AI solar e-bike" promises to "eliminate range anxiety," and is sold by a new brand out of China hoping to make a big splash by selling direct-to-consumer through […]

2026-06-25 原文 →
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Presentation: Rust at the Core - Accelerating Polyglot SDK Development

Spencer Judge discusses the architectural pattern of building a shared core in Rust with language-specific layers on top. Drawing from his work on Temporal's SDKs, he shares lessons on navigating FFI boundaries, bridging async concepts, and managing memory safely. He explains the limitations of native extensions and how emerging tech like WebAssembly can streamline cross-language architecture. By Spencer Judge

2026-06-25 原文 →
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Why Redis is so fast explained using simple motion graphics

Most people assume Redis is fast because of some complex multi-threaded. Turns out it's the opposite — it runs on a single thread and still beats most databases. The reason comes down to how it handles I/O at the OS level and why memory access patterns matter more than thread count. Here's a animated breakdown of the internals if anyone's curious. submitted by /u/lonely_geek_ [link] [留言]

2026-06-25 原文 →
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What Europe’s heat wave means for the power grid

It’s been hard to look away from headlines about the European heat wave this week. Temperatures are breaking records across the continent, and the weather is threatening lives, shutting down schools, and in one particularly ironic case, forcing the cancellation of a London Climate Action Week event about extreme heat. As the summer ramps up…

2026-06-25 原文 →