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/sfg/ - Spaceflight General

No.14421536 ViewReplyLast 50OriginalReport
Become A Space Sailor Edition
Previous: >>14418843

Upcoming rocket launches:
26th April
>Angara 1.2 | MKA-R
27th April
>Long March 11 | Jilin-1 HR-03D-04 to 09 & 04A
>Falcon 9 Block 5 | Crew-4
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No.14422065 ViewReplyOriginalReport
Do they produce anything of actual value, or are they complete hacks?
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No.14423309 ViewReplyOriginalReport
>Although it is known that atoms containing few valence electrons are the best conductors, it is not known why some of these materials are better conductors than others. Copper, gold, platinum, and silver all contain only one valence electron. Silver, however, conducts electricity more readily than any of the others. Aluminum, which contains three valence electrons, is a better conductor than platinum, which contains only one valence electron.

So this is a quote from a book about electricity, I'm trying to relearn a bunch of stuff that I never paid much attention to during my school years and I found this interesting.

So any theories why this might be the case? What others factors do you think aside from the amount of valence electrons make silver a better conductor than gold/copper/platinum? Basically what makes electrons able to travel more freely in silver that in those other metals?
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Why didn't he just stand up?

No.14418388 ViewReplyOriginalReport
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No.14417453 ViewReplyLast 50OriginalReport
It's statistically more likely that we're living in the end times than it is that we're living at any other time
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No.14423273 ViewReplyLast 50OriginalReport
Where’s the Wildberger for this bullshit? You can’t just say hey my equation is undefined there but imagine if it just keeps going hehehe. I mean you can, but it’s just an algebraic abstraction, it has no reality.
>muh sqrt-1
>muh “analytic continuation”
It’s like sayin “I identify as a function valued for s less than zero.”
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No.14418528 ViewReplyOriginalReport
Is there anything actually wrong with lead? Or is it just more overblown nonsense from liberals like with cigarettes?
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No.14424914 ViewReplyOriginalReport
When should I start studying for the MCAT? I’m going to be a junior in fall and haven’t took biochemistry yet.
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Anything you would add?

No.14422944 ViewReplyOriginalReport
Undergraduate
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