Current Entries --------------- 02/28/2023 Dreams of a ZPM? https://www.quantamagazine.org/physicists-use-quantum-mechanics-to-pull-energy-out-of-nothing-20230222/ 02/28/2023 The world's first carbon fiber reinforced concrete building: https://www.dezeen.com/2023/02/21/henn-and-tu-dresden-complete-worlds-first-carbon-concrete-building/ "German architecture firm Henn and the Technical University of Dresden have completed the world's first building made of carbon concrete ''“ a form of concrete reinforced with carbon fibre instead of steel. ... According to Henn head of sustainability Giovanni Betti, the slim line of the [building]'s facade was made possible by the use of carbon fibre reinforcement, which is rust-proof and so doesn't need to be covered in as much concrete. 'Carbon fibre is four times lighter and six times stronger than steel and is not subject to corrosion,' Betti told Dezeen. 'This means that the reinforcement does not have to be encapsulated in as much concrete to protect it from water and a same-sized section will be able to carry a higher load.' 'Components and structures can be designed thinner, with material savings of 50 per cent or more. ...'" 02/28/2023 Clean code -> Horrible Performance: https://www.computerenhance.com/p/clean-code-horrible-performance 02/16/2023 Alpines might be coming to the US: https://www.thedrive.com/news/alpine-cars-could-be-sold-in-america-at-us-autonation-dealerships 02/15/2023 Planetary System Types - Ordered, Anti-Ordered, Mixed, and Similar: https://www.sci.news/astronomy/planetary-system-architecture-11655.html 1. Ordered: planetary systems where "the mass of the planets tends to increase with distance from the star - just as in the Solar System." 2. Anti-Ordered: the "mass of the planets roughly decreases with distance from the star" 3. Mixed - "the planetary masses ... vary greatly from planet to planet." 4. Similar - "the masses of neighboring planets are similar to each other" Ordered and Anti-Ordered systems result from "[l]arge, massive [planetary] disks with many heavy elements" Mixed systems result from "medium-sized disks" and "[d]ynamic interactions between planets" Similar systems result from "small, low-mass disks and stars with few heavy elements" 02/02/2023 The Violin Doctor: https://www.chicagomag.com/chicago-magazine/january-2023/the-violin-doctor/ 02/02/2023 Estimating Square Roots: https://gregorygundersen.com/blog/2023/02/01/estimating-square-roots/ 1. For a given number n, pick a number g, where g^2 is a perfect square close to n 2. Compute b = n / g 3. Approximate sqrt(n) as (g + b) / 2 Earlier Entries --------------- 01/##/2023 https://srirangav.github.io/motd/2023/01/motd.txt https://srirangav.github.io/motd/2023/01/index.html ##/##/2022 https://srirangav.github.io/motd/2022/motd.txt https://srirangav.github.io/motd/2022/index.html