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Joined 1 year ago
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Cake day: July 31st, 2023

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  • The bottom line is this: if your accelerated processes are causing more workers to get injured, then you need to slow down. You must not churn out a second stage every 2.5 days if it means more injuries per worker.
    Your argument is that these workers are doing more dangerous tasks more often and therefore that raises the injury rate, right? Well then they should be doing fewer dangerous tasks, and less often, then.


  • crapwittyname@lemm.eetoScience Memes@mander.xyzpuns
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    6 months ago

    The time derivative of position is velocity. The derivative of velocity is acceleration. Derive again and you get jerk. Then it’s snap, crackle and pop.

    (For those too young, these are the names of those characters they use to sell Rice Krispies)





  • It’s not just toxic, it’s incredibly toxic… the threshold for toxicity is below human sensitivity, i.e. if you can smell it, it’s already too late. It’s also flammable/explosive, poisonous, carcinogenic, catches fire without a spark, has no surface tension so it spreads faster than water, and it’s generally the single most dangerous chemical known to man. In the words of Isaac Asimov:

    anyone working with rocket fuels is outstandingly mad. I don’t mean garden-variety crazy or a merely raving lunatic. I mean a record-shattering exponent of far-out insanity.

    That’s Hydrazine. The other liquid propellant, nitrogen tetroxide, which causes the signature red clouds, is slightly (!) less hazardous. It will still readily kill you. It’s odd to see in the twitter photo that there was a fuming red cloud during takeoff, which suggests a problem with the burn ratios. Absolutely zero propellant should be allowed to pass unspent into the air, from engineering, safety and environmental perspectives.