DaveC426913's latest activity
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DaveC426913 replied to the thread High School Uniform thermal expansion of metals.Yes. That, and Poe's Law. There's no credibility quotient on social media, so there's no disincentive to troll, or merely just have a... -
DaveC426913 replied to the thread High School Uniform thermal expansion of metals.That's gotta be it. I drew some diagrams for them. Let em chew on those. The real takeaway here is: don't argue with people on social... -
DaveC426913 reacted to A.T.'s post in the thread High School Uniform thermal expansion of metals with
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Yes, I think the double hole case is a good follow up question to ask after explaining the single hole case, in order to check if the... -
DaveC426913 replied to the thread High School Uniform thermal expansion of metals.Exactly. -
DaveC426913 replied to the thread High School Uniform thermal expansion of metals.If someone tried to claim a volume of air should cool when it's compressed I wouldn't need to verify that it's wrong. :wink: -
DaveC426913 replied to the thread High School Uniform thermal expansion of metals.Something I noticed many people assumed: nowhere does it say they're "holes" they're "cavities", which does not suggest they cut all the... -
DaveC426913 reacted to Lnewqban's post in the thread High School Uniform thermal expansion of metals with
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Make the radii of the holes tend to zero: we have a body tending to look close to a coin. If all the molecules of coin increase at once... -
DaveC426913 replied to the thread High School Uniform thermal expansion of metals.The point i am now trying to establish is why did ANYONE think x would decrease? At first I thought they had a point, but i cant even... -
DaveC426913 replied to the thread High School Uniform thermal expansion of metals.Right. Sorry. That's why it's so bad to quote from other sources without proper context. Context: Some people (I won't call them fools)... -
DaveC426913 replied to the thread Today I Learned.TIL: "The US uses metric, they just disguise it. All* US standard units are defined in terms of metric units, and have been since the... -
DaveC426913 replied to the thread High School Uniform thermal expansion of metals.The only place it is assumed is in my answer. It is not in the problem. So, the question remains unanswered. Am I correct in my... -
DaveC426913 reacted to sophiecentaur's post in the thread High School In 2g, would jumping be harder? with
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Even under 2g? -
DaveC426913 replied to the thread High School In 2g, would jumping be harder?.I am at that age where I can damage something if I sleep on the wrong pillow. -
DaveC426913 replied to the thread High School In 2g, would jumping be harder?.Thanks guys. This thought was driven by someone posing the question as to whether jumping would be "impossible" in 2g. My first thought...

