Month: April 2023

Rubik’s Cube Solver Does It In 4.56 Seconds

Solving Rubik’s Cubes is a learnable skill. However, to compete at the top level, you’ll have to train hard. Speed cubers can solve a 3×3 cube in under ten seconds these days, after all. [aaedmusa] was a long way off that speed, but his robot is an absolute demon that solves at a rapid pace.

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Printing a Brutalist Kitchen Timer

A kitchen timer is one of those projects that’s well defined enough to have a clear goal, but allows plenty of room for experimentation with functionality and aesthetics. [Hggh]’s exploration of the idea is a clean, Brutalist kitchen timer. The case for [Hggh]’s kitchen timer is 3D printed with openings for a TM1637 four digit,

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Building an Energy Sword Replica From Halo

A good many of us whiled away the hours of our youths playing Swords Only deathmatch in Halo 2. The Energy Sword, aka the Plasma Sword, was the star of the show, with its devastating glowing blades granting us scoreboard domination. [Arnov Sharma] has now built a quality replica of this science-fiction weapon. The build

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Why Do Rifa Capacitors Fail?

Anyone who works with older electronic equipment will before long learn to spot Rifa capacitors, a distinctive yellow-translucent component often used in mains filters, that is notorious for failures. It’s commonly thought to be due to their absorbing water, but based upon [Jerry Walker]’s long experience, he’s not so sure about that. Thus he’s taken

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How researchers, including at Meta’s AI lab, use AI to study EEG readings, decoding how neurons in the brain communicate and exploring the nature of cognition (Christopher Mims/Wall Street Journal)

Christopher Mims / Wall Street Journal: How researchers, including at Meta’s AI lab, use AI to study EEG readings, decoding how neurons in the brain communicate and exploring the nature of cognition  —  Thought is ever-changing electrical patterns unconnected to individual neurons.  Meta is working on a system to read your mind.

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Cat Skull for Internet Connection Divination

[Emily Velasco] has an internet provider that provides sub-par connectivity. Instead of repeatedly refreshing a browser tab to test if the network is up, [Emily] decided to create an internet status monitor by embedding indicator lights in a cat skull…for some reason. The electronics are straightforward, with the complete parts list consisting of an Arduino

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Ocado wins AutoStore’s lawsuit after the UK High Court invalidated two of AutoStore’s warehouse automation patents for being publicly disclosed before filing (Brianna Wessling/The Robot Report)

Brianna Wessling / The Robot Report: Ocado wins AutoStore’s lawsuit after the UK High Court invalidated two of AutoStore’s warehouse automation patents for being publicly disclosed before filing  —  Yesterday, the UK High Court ruled that AutoStore’s patents, which have been the subject of a patent infringement case against Ocado …

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Blender and openEMS Teamed Up Make Stunning Simulations

There’s tons of theory out there to explain the behavior of electronic circuits and electromagnetic waves. When it comes to visualization though, most of us have had to make do with our lecturer’s very finest blackboard scribbles, or some diagrams in a textbook. [Sam A] has been working on some glorious animated simulations, however, which

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An investigation details how a Georgia man was wrongfully arrested based on a bad facial recognition match and other tech meant to make policing more effective (New York Times)

New York Times: An investigation details how a Georgia man was wrongfully arrested based on a bad facial recognition match and other tech meant to make policing more effective  —  Because of a bad facial recognition match and other hidden technology, Randal Reid spent nearly a week in jail …

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The NLRB says Activision Blizzard broke US labor law by illegally surveilling staff during a walkout and threatening to close Slack channels amid a union drive (Daniel Wiessner/Reuters)

Daniel Wiessner / Reuters: The NLRB says Activision Blizzard broke US labor law by illegally surveilling staff during a walkout and threatening to close Slack channels amid a union drive  —  Activision Blizzard Inc (ATVI.O) violated U.S. labor law by illegally surveilling employees during a walkout and threatening …

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Sources: Lyft co-founders’ departures followed months of staff worries as the company’s market cap fell 85% to under $3.5B in two years, while Uber fared better (Wall Street Journal)

Wall Street Journal: Sources: Lyft co-founders’ departures followed months of staff worries as the company’s market cap fell 85% to under $3.5B in two years, while Uber fared better  —  New CEO says he aims to boost employee morale and overhaul customer and driver experience  —  Tech Live: Lyft Co-Founder on Stock-Price Tumble, Autonomous Cars

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Sources: Lyft co-founders’ departures followed months of staff worries as the company’s market cap fell 85% to under $3.5B in two years, while Uber fared better (Wall Street Journal)

Wall Street Journal: Sources: Lyft co-founders’ departures followed months of staff worries as the company’s market cap fell 85% to under $3.5B in two years, while Uber fared better  —  New CEO says he aims to boost employee morale and overhaul customer and driver experience  —  Tech Live: Lyft Co-Founder on Stock-Price Tumble, Autonomous Cars

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Blender and openEMS Teamed Up Make Stunning Simulations

There’s tons of theory out there to explain the behavior of electronic circuits and electromagnetic waves. When it comes to visualization though, most of us have had to make do with our lecturer’s very finest blackboard scribbles, or some diagrams in a textbook. [Sam A] has been working on some glorious animated simulations, however, which

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Sources: ByteDance generated $80B+ in 2022 revenue, up 30%+ YoY, after growing 70% between 2020 and 2021; TikTok represented ~12% of ByteDance’s total revenue (Juro Osawa/The Information)

Juro Osawa / The Information: Sources: ByteDance generated $80B+ in 2022 revenue, up 30%+ YoY, after growing 70% between 2020 and 2021; TikTok represented ~12% of ByteDance’s total revenue  —  ByteDance, the Chinese owner of TikTok, generated more than $80 billion in annual revenue last year, up more than 30% …

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Modern Dance or Full-Body Keyboard? Why Not Both!

If you felt in your heart that Hackaday was a place that would forever be free from projects that require extensive choreography to pull off, we’re sorry to disappoint you. Because you’re going to need a level of coordination and gross motor skills that most of us probably lack if you’re going to type with

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Modern Dance or Full-Body Keyboard? Why Not Both!

If you felt in your heart that Hackaday was a place that would forever be free from projects that require extensive choreography to pull off, we’re sorry to disappoint you. Because you’re going to need a level of coordination and gross motor skills that most of us probably lack if you’re going to type with

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Modern Dance or Full-Body Keyboard? Why Not Both!

If you felt in your heart that Hackaday was a place that would forever be free from projects that require extensive choreography to pull off, we’re sorry to disappoint you. Because you’re going to need a level of coordination and gross motor skills that most of us probably lack if you’re going to type with

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Modern Dance or Full-Body Keyboard? Why Not Both!

If you felt in your heart that Hackaday was a place that would forever be free from projects that require extensive choreography to pull off, we’re sorry to disappoint you. Because you’re going to need a level of coordination and gross motor skills that most of us probably lack if you’re going to type with

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Sources: ByteDance generated $80B+ in 2022 revenue, up 30%+ YoY, after growing 70% between 2020 and 2021; TikTok represented ~12% of ByteDance’s total revenue (Juro Osawa/The Information)

Juro Osawa / The Information: Sources: ByteDance generated $80B+ in 2022 revenue, up 30%+ YoY, after growing 70% between 2020 and 2021; TikTok represented ~12% of ByteDance’s total revenue  —  ByteDance, the Chinese owner of TikTok, generated more than $80 billion in annual revenue last year, up more than 30% …

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5 Android apps you shouldn’t miss this week – Android Apps Weekly

Welcome to the 478th edition of Android Apps Weekly. Here are the big headlines from the last week: Google is making changes to Android in India following a variety of rulings from the Indian government. Changes include how Android approaches sideloading apps, app stores, user-choice billing, default apps, and more. These changes may find their

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When healthcare is decided by algorithms, who wins?

Photo by Daniel Stone / National Cancer Institute I’m starting this with a personal story. My mother was a New York City public school teacher for many years. When she joined the school system, part of the deal was that, when she retired, many of the costs of her traditional Medicare plans would be subsidized

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Boost Amazon Product Listing With The Best Amazon Photography

Do you want to get the most out of your Amazon product listing? Professional photography can effectively make a powerful impression on shoppers, attract attention, and increase sales. With the increased competition, your Amazon product listing needs to stand out from the thousands of other listings vying for attention. So, whether you’re new to online

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