Commenters discussed E Ink’s new Kaleido 4 color e-paper as an incremental but welcome improvement, with several people (okuntilnow, layer8) noting better contrast and questioning what a 15% white reflectivity gain actually means in practice. Technical criticisms came up - washed-out colors, low contrast compared with tablets, slow refresh and dithering artifacts - with someone linking OCT measurements of Kindle displays (OptCohTomo) and others distinguishing Kaleido’s color-filter approach from pigment-based Spectra/Gallery tech (IshKebab). Views split on usefulness: some (wrxd, 0cf8612b2e1e) called color a marginal convenience useful for covers, charts, comics or academic plots, while others (smith7018, benouau) argued color e‑ink could enable low‑strain, less addictive devices and broader form factors if the tech improves.
There was also clear hobbyist and product-market interest: several users want larger, hackable panels or framed displays (xd1936, ryankulp/ryanckulp, bhelkey), and others praise enduring monochrome readers like the Kobo Aura One and custom firmware (stuxnet79, teroshan). Concerns about vendor timing and QA surfaced - buyer’s remorse over recent Kindle/Kobo refreshes, reported yellow banding and poor white balance on some units (abletonlive, zeeveener). Overall commenters ranged between hopeful enthusiasts who see future potential and pragmatic users who call current color e‑ink niche or gimmicky except for specific use cases.
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Tesla unveiled a second-generation Roadster equipped with SpaceX thrusters, capable of flying and performing complex maneuvers. The vehicle is set to be produced in 2028 with three trims, offering speeds over 230 mph and up to 300 miles of range. (techcrunch.com)
Design documents for the Ferranti ULA chips used in Sinclair's ZX81 and Spectrum have surfaced after 45 years, revealing detailed engineering drawings and notes. The documents, now held by Sky, include information on various Sinclair products and offer insights into the subtle differences between ULA versions. (hackaday.com)
BeBox is a Haiku application that emulates the Be Inc.'s BeBox hardware, focusing on PowerPC and Hobbit architectures. The project is open source and available on GitHub with a small community of contributors. (github.com)
An ESP32-C3's RF hardware can be used to transmit DVB-S2 signals, enabling low-cost satellite broadcasting. However, the device's frequency range limits direct satellite transmission, requiring additional hardware for upconversion. (hackaday.com)
Hardwood cutting boards are typically made from species like Walnut, Maple, Sapele, or Cherry. The process involves selecting the right size, rough cutting the hardwoods into strips, and arranging them in a visually appealing pattern before gluing them together. (a.wholelottanothing.org)
Elevation Lab offers a variety of AirTag mounts, cases, and accessories designed for different uses, including security, pets, bikes, and everyday items. They also provide a 10-year battery option for AirTags and other desk accessories. (elevationlab.com)
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