Monthly Archives: September 2022

Better than JPEG? Researcher discovers that Stable Diffusion can compress images

Enlarge / These jagged, colorful blocks are exactly what the concept of image compression looks like. (credit: Benj Edwards / Ars Technica) Last week, Swiss software engineer Matthias Bühlmann discovered that the popular image synthesis model Stable Diffusion could compress existing bitmapped images with fewer visual artifacts than JPEG or WebP at high compression ratios,…

China’s Nio joins the race for lithium, buys 12% of Australia’s Greenwing Resources

China’s electric vehicle upstart Nio has joined Tesla in sourcing raw materials directly from mines rather than its own battery suppliers as soaring prices of lithium, a critical component of EV batteries, hurt manufacturers’ supply chain stability and bottom lines. Lithium carbonate prices in China hit a record 501,500 yuan/tonne in September, tripling the number…

Firehawk’s rocket engines and 3D-printed fuel hit testing milestones ahead of first launch

Although today’s rocket engines are advanced and powerful, they tend to rely on traditional — and naturally volatile — fuels like hydrazine or liquid oxygen and kerosene. Firehawk Aerospace has a safer and more stable new fuel, new engines, and millions in new funding to take it through the next round of tests to its…