SteveMcQwark

SteveMcQwark t1_je6c5mr wrote

Reply to comment by ManyRespect1833 in So Meta by TAU_equals_2PI

Yet somehow went up in weight from 660 g to 861 g. So dose size increased. I wonder if that's just that they've updated their guidelines or if the product is different. It's also comparing the sugar-free and real sugar variants—neat how they market both positively—which probably doesn't impact anything but might be worth noting.

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SteveMcQwark t1_jdmo73i wrote

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SteveMcQwark t1_jaex0wr wrote

On the one hand, you don't have gravitational loading for the most part (there's some because of various forces that get applied to a space station during operation, but not at the level you'd have on the ground). However, you can get structural oscillations which behave somewhat differently than they do on the ground, as well as various torques that get applied throughout operation. And because of weight considerations during launch, space structures are often made of aluminum, which doesn't have a fatigue limit, so it will weaken over time even for minor stresses. You hear about fractures being found in the walls of Russian ISS modules because of this. These effects get worse as you scale up a structure.

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SteveMcQwark t1_jad2bze wrote

Just your comment giving the backstory was removed, not the post. I should have clarified.

Direct links to social media aren't allowed, hence why I suspected the mention of your social media account might be the culprit, but yeah, that wasn't a direct link, so not sure what this is about. You can check out the rules: https://www.reddit.com/r/pics/wiki/index/

I'm here from the front page, so not an expert on how the rules get applied.

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SteveMcQwark t1_j81a1m4 wrote

There's also full (launch) duration testing. Doing a full duration test with an engine is often about essentially simulating a launch, ensuring that you can sustain the performance you need for the requisite amount of time.

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