davidad

18-year-old Ph.D. student at MIT,
studying the nature of human cognition through programming language theory;
amateur photographer and musician

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How to find the area under a curve without calculus

  • Ryan: guess how were taking the integral of these analog functions that come out of the gas chromatograph?
  • Ryan: its one of those machines that scribbles a graph on a moving peice of paper, forget what that's called
  • Ryan: but its how we measure the area under the graph that makes it seem really low tech for gas chromatography
  • davidad: do you literally measure the area on the paper somehow?
  • davidad: like by counting squares in the graph paper?
  • Ryan: indirectly
  • Ryan: but not literally
  • Ryan: more precise than squares
  • davidad: ah
  • davidad: that's good at least
  • Ryan: it's quite a clever idea for its simplicity
  • Ryan: we carefully cut the graph out of the paper with scissors
  • Ryan: and weigh it on an analytical balance
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