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The most popular blog posts about hardware & electronics on Hacker News. 3,046 posts.

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2673

Magic Leap is a Tragic Heap

The title of this review was carefully chosen, not glibly. I want what is best for VR and all other technologies on the Reality–Virtuality Continuum, Magic Leap included. Unfortunately, their cur…

2675

A PCIe Coral TPU Finally Works on Raspberry Pi 5

Coral.ai TPUs are AI accelerators used for tasks like machine vision and audio processing. Raspberry Pis are often integrated into small robotics and IoT products—or used to analyze live video feeds with Frigate. Until today, nobody I know of has been able to get a PCI Express Coral TPU working on the Raspberry Pi…

2685

The Sad Saga of the 500 MHz Power Mac G4

In August 1999, Apple announced the first Power Mac G4: 1 The Power Mac G4 is powered by the revolutionary new PowerPC G4 chip architected by Apple, Motorola and IBM, and is the first personal computer in history to deliver supercomputer-level performance of over one billion floating-point operations per second. The…

2690

What is Electricity? (1996)

What is electricity? This question is impossible to answer because the word " Electricity " has several contradictory meanings. These different meanings are incompatible, and the contradictions confuse everyone. If you don't understand electricity, you're not alone. Even teachers, engineers, and scientists have a hard…

2693

Cheap BlueTooth Buttons and Linux

Selfie sticks - like most modern inventions - are utter tosh. But they've rapidly brought down the price of Bluetooth buttons. So who am I to complain? Let's take the venerable AB Shutter 3 - You can find it on Amazon for around £2 including postage - or around $2 on AliExpress. Frankly, that's stupidly cheap. OK…