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blockspins's profile
bgc
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@blockspins

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bgc

@blockspins

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    1. julesh‏ @_julesh_ 6 Oct 2019
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      At home we had an old O-level mathematics (old British system, compulsory at age 16) book lying around. Two things stuck out: A massive amount of material: lots of calculus, matrices, complex numbers, group theory, ... And almost all of it explained extremely badly

      4 replies 0 retweets 35 likes
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    2. julesh‏ @_julesh_ 6 Oct 2019
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      The O-level physics book we had lying around was even more brutal, far more physics than I ever learned in my life. Pretty sure the total content of my physics A-level (optional, age 18) would have been squashed into just a few pages of that

      3 replies 0 retweets 15 likes
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    3. julesh‏ @_julesh_ 6 Oct 2019
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      To be fair, I took my exams at the low point in difficulty (towards the end of the Blair administration), after that they got harder again My physics A-level involved zero calculus. There's really very little physics you can do without any calculus at all

      4 replies 1 retweet 8 likes
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    4. bgc‏ @blockspins 6 Oct 2019
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      Replying to @_julesh_

      I thought a bit about "physics without calculus" recently and one important idea that came to mind was dimensional analysis (though this isn't emphasized nearly as much as it should be). After that I could only come up with a few toy examples which mostly consisted of ...

      2 replies 0 retweets 1 like
      bgc‏ @blockspins 6 Oct 2019
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      Replying to @blockspins @_julesh_

      solving for steady states on graphs. E.g. computing forces in simple statics problems consisting of rigid free-bodies treated as points or computing currents / voltages in resistor networks. (Of course, these are certainly enriched with knowledge of calculus).

      10:15 AM - 6 Oct 2019
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