Practical Engineering
Published 20 Jun 2023Launchpads are incredible feats of engineering. Let’s cover some of the basics!
Unlike NASA, which spends years in planning and engineering, SpaceX uses rapid development cycles and full-scale tests to work toward its eventual goals. They push their hardware to the limit to learn as much as possible, and we get to follow along. They’re betting it will pay off to develop fast instead of carefully. This video compares the Stage 0 launch pad to the historic pad 39A.
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June 21, 2023
Was Starship’s Stage Zero a Bad Pad?
Scuttling of the German High Seas Fleet at Scapa Flow, Orkney, 21 June 1919 in the Great War
CEFRG (Canadian Expeditionary Force Research Group)
Published 3 Apr 2020The German High Seas Fleet decided to sink as many of its own ships as possible to prevent them from falling into Allied hands. In total, 52 of 74 ships were sabotaged to keep them from Britain, France, Italy and the USA. Most of these nations wanted a share for their navies, and knowing she could not have them all to herself, Britain wanted the ships scrapped to prevent other nations from gaining naval superiority.
On the morning of 21 June 1919, the British fleet left Scapa Flow for exercises, and Rear Admiral Sydney Freemantle, commander of the 1st Battle Squadron guarding the ships, planned to return two days later to board and seize the ships.
Already occupying Germany west of the Rhine, the Allied Powers expected Germany to accept all articles of the Treaty of Versailles by 23 June, and threatened to occupy territory east of the Rhine if all demands were not met. German Rear Admiral Ludwig von Reuter, following orders he had received after the breakdown of negotiations, seized the opportunity with the British fleet having just left the harbour, gave the order to scuttle all ships as his crews opened seacocks, torpedo tubes and portholes to flood them, and once again hoisted the flag of the Imperial German Navy.
The final battle casualties of the Great War occurred on this day, with nine German sailors killed and sixteen wounded by the British during brawls when they refused to help save the ships. For his part, von Reuter was imprisoned along with 1,800 of his men, but was released the following year. Upon his return to Germany, he was praised as the man who had preserved the honour of the German High Seas Fleet (in typical fashion, Freemantle had angrily accused von Reuter of having behaved without honour).
Of the 52 ships scuttled in 1919, seven remain at the bottom of the sea today. They are registered under the Ancient Monuments and Archaeological Areas Act 1979, and provide some of the best shipwreck diving in Europe.
QotD: Working online
After a bit of a rocky start, most people I know who suddenly found themselves doing their “work” online quickly realized little work they actually did — and, by extension, since they were the conscientious ones, how trivially little work so many of their coworkers did. Hard on the heels of that was the realization that “work” in a physical workplace, for the vast majority of people, really means “socializing”. There are a LOT of jobs in which one person actually working from home can accomplish in one day what it takes an entire “customer service” department a week to do under “normal” — meaning, “in the office” — conditions.
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For lots of people, the office was their only social outlet. Coffee breaks, water cooler chatter, happy hours … for lots of people, that was pretty much it, socially. “Work/life balance” was always a joke, because all your friends are work friends, so even if you’re “socializing” and not “working”, it’s with the same people from the office, talking about office stuff. And the longer you stayed in the same job, the higher up the corporate ladder you got, the more specialized your position, the worse it got – your rookie customer service reps still had buddies from college to hang out with, but junior managers tended to hang out exclusively with other junior managers, etc. The “professions”, of course, are famously clannish — the only ways to talk to a lawyer or doctor are to hire one, or be one.
Severian, “More Scattered Thoughts”, Rotten Chestnuts, 2020-10-13.