tattoo removal

Styropyro tests an eBay laser tattoo removal device and finds it is a roughly million-watt pulsed laser, powerful enough to ignite air in the beam. He had bought it hoping to salvage an Nd:YAG laser cavity.

Part one of Look Mum No Computer's series on buying a whole church pipe organ, covering how it was removed from its home. The series goes on to restoring it and rewiring it for MIDI.

Geoff Lawton documents a permaculture project that turned barren Jordanian desert into green, productive land. It covers the techniques he used.

Real Engineering examines whether greening the Sahara could draw down carbon and slow climate change. It concludes that the effort would be enormously costly and that changes in albedo and other effects undercut the climate benefit.

Adobe's sneak-peek demo of Content-Aware Fill ahead of Photoshop CS5, showing objects being removed and areas repaired seamlessly with the delete key.

Larry Hastings explains what Python's GIL is, what problems it solves and how it works, and presents his Gilectomy project to remove it, including the performance and C-extension obstacles.

Andrej Karpathy, then Tesla's head of AI, gives a CVPR 2021 workshop keynote on how Autopilot's neural networks work. A large part covers the move to a vision-only stack, including why radar was dropped and how vision produces depth estimates.

carykh demonstrates a script that speeds up the silent parts of a video while leaving speech at normal speed, to condense lectures and similar footage. It later became the Jumpcutter tool.

Thunderf00t critiques the TeamTrees campaign, doing the math on how little carbon 20 million trees would actually offset. He argues that tree planting is far from adequate against global emissions.

A German STRG_F investigation into why child sexual abuse material stays online on forums, following a father whose daughter's abuse images were widely shared. The reporters tried to get the content removed by contacting hosters.

Scott Manley covers how GPS works and how civilian accuracy went from a planned 100 meters to about one meter. He explains the technology and the removal of restrictions that made this possible.

A 47-minute documentary on Allan Savory and how he used Holistic Management to restore degraded land in Zimbabwe. It covers rotational grazing, soil health and regenerative agriculture.

Allan Jude of Klara presents work on making ZFS scale on fast NVMe storage, covering fixes to the TaskQueue interface and removal of bottlenecks. The talk was given at EuroBSDcon 2022 and describes raising write throughput from about 3 to over 7 GB/sec.

An OpenZFS office hours session with ZFS co-creator Matt Ahrens answering questions on topics such as hole birth time, send/receive buffers, device removal, block pointer rewrite and performance with many snapshots.

Kurzgesagt addresses whether viewers can trust its videos, describing its research process and how it handles older videos with errors or overstated claims.

Dave Rubin interviews Patreon CEO Jack Conte about the removal of Lauren Southern's and IGD's accounts, free speech and Patreon's policies.

A short Conan on TBS segment mocking Apple's new wireless AirPods and the removal of the iPhone 7 headphone jack, in the form of a parody ad.