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July 29, 2021 Archives
Thursday, July 29, 2021
THE HAPPENING WORLD: Space Plumbers
Completing feed system for 29 Raptor rocket engines on Super Heavy Booster pic.twitter.com/uARWx2HYTr
— Elon Musk (@elonmusk) July 29, 2021
Raptor V2.0 is a major improvement in simplication, while also increasing thrust from ~185 tons to ~230 tons. Long-term goal is engine cost below $1000/ton of thrust.
— Elon Musk (@elonmusk) July 29, 2021
Posted at
19:16
CONTEXT: Intel to California et al.: “Beast Canyon”
Intel this morning is taking the wraps off of their latest-generation Extreme NUC: Beast Canyon. The gaming-focused SFF box combines a Tiger Lake-H compute element with a chassis that can handle video cards up to 350W, making for a powerful-yet-compact PChttps://t.co/j0lsZaCXJD pic.twitter.com/Amn2oMfcBX
— AnandTech (@anandtech) July 29, 2021
Includes a 640 watt power supply, supporting a 65 watt CPU, 64 Gb DRAM, 2.5 Gb Ethernet, and support for 350 watt GPUs.
Posted at
14:07
THE HAPPENING WORLD: Nauka Module Docked to International Space Station
#Nauka module docks at #ISS expanding the Russian Segment of the station for the first time in a decade ("That was not an easy docking!": pic.twitter.com/kClkMAInkA
— Anatoly Zak (@RussianSpaceWeb) July 29, 2021
Posted at
13:49
TRACKING WITH CLOSEUPS: RB211—The Engine that Bankrupted Rolls-Royce, then Made it a Global Leader
Posted at
12:10
CONTEXT: Vitalik Buterin—Is the Gini Coefficient Appropriate for Measuring Concentration of Asset Ownership?
Against overuse of the Gini coefficient:https://t.co/G6sCj75w9R
— vitalik.eth (@VitalikButerin) July 29, 2021
The Gini coefficient is widely used as a measure of income or wealth distribution among a population. The higher the value, the more income or wealth is concentrated among a small fraction of the population. For example, using World Bank numbers, Mexico has a Gini value of 45.4, while Norway comes in at 27.0. But is Gini a meaningful or useful measure when applied to distribution of an asset, like cryptocurrency, in which concentration of ownership may be more a measure of interest than wealth? This thoughtful essay examines the question and argues that other measures are required in such circumstances.
Posted at
11:42
THE HAPPENING WORLD: Rocket Lab Electron “It's a Little Chile Up Here” Launch
I have cued the video to start at one minute before liftoff. If you wish to see the preliminaries, scroll back to the start. Here are details of the mission, whose classified payload, called “Monolith”, is for the U.S. Department of Defense.
Posted at
11:23
CONTINUITY: Lighting Up an Apollo Guidance Computer Display (DSKY) after Half a Century
Plus, a misadventure with copper-clad aluminium wire. “Maybe the wire is bad.”
Posted at
11:12