1. 12

The presentation style is not up to today’s standards (and the accidental Dutch tilts are disorienting), but I found this fascinating to contrast with development today. It’s weird when a statement like, “In most problems, 20-50% of the problem preperation time is in writing the program” is oddly prescient, even though it kind of means something rather different.

Also, I challenge you not to snicker at the card layout diagram for holding the result of the computation.


  2. 4

    a) Why does the background sway behind the presenter? Is this an illusion created by correlated noise?
    b) Why hand hold the camera? Why not use a tripod?

    EDIT: I am now convinced that the “Dutch angles” referred to here and the swaying are the same: somebody - possibly interns - are holding the backdrop in front of which the presenter stands and on which he hangs his cards. Naturally, the holders move, which causes the backdrop to move.

    Why they couldn’t find a chalk board or pin board to do the presenter with, I can not guess.

    EDIT2: I take it back!! I think it’s even more fascinating! It’s due to a rolling shutter effect!

    EDIT3: (last edit, I promise). It’s a CHEAP ZOOM lens system leading to changes in the angle between the lens and image plane, causing accidental tilt-shift.

    1. 1

      Thank you for investigating; that’s fascinating. How did you determine this?

      1. 2

        @Irene, sorry these are all hypotheses, trying to fit what I know of photography to what I see on the film.

        To muddy waters further, I now think that part of it is distortion introduced during copying or transfer from film to analog video/digital medium. Basically, the film goes through the digitizer and wobbles a bit in the holder, leading to transient loss of focus and distortion.

        Again, just a hypothesis.

        1. 2

          Well, I’m home now and have watched it. I think your cheap zoom idea is probably right; a lot of the swaying happens on a timescale consistent with adjusting the lens and it needing a second or two. Of course, at the time it may have been an expensive zoom. :)

          I definitely also see some different distortion that could be from the digitization.