Day 3 in Mat115H

Today:

• Announcements
  • You have a new assignment: see the
  • Schedule and Assignments page to keep track of these.

• Timeline of Lewis Carroll's life additions:
  1. Karrissa -- Trip to Russia
  2. Holly -- photography
  3. Dylan -- several
  4. Amanda -- two
  5. Hannah -- His childhood illnesses
  6. Annie -- Designed a Postage Stamp case
  7. Annna -- Tom Petty video
  8. Jessie -- Photographer's Day Out
  9. Barb -- 1852 Studentship
  10. Kayla -- Photography popularized
  11. Ryan -- Mad Hatter Batman villain
  12. Adam -- Political Activity (the first in the timeline with duration...)
  13. Jillian -- Lewis Carroll Society Formed
  Who's missing?

• Today we'll finish the readings (through Scene 6), and add Scenes 7 and 8
  • Beaver's Lesson (1 - a recitation)
    • Everyone has discharged their duty
    • Tail poems for the Beaver's Lesson
  • Map-Making (Myself and Mein Herr, and a recitation)
  • A Question of Gravity (Arthur, Muriel, Earl)
  • Fortunatus's Purse (Mein Herr, Muriel, Myself)

• Then look at Mobius band applications, and whatnot:
  • Holly: Mobius buildings!
  • Hannah: a wedding ring, or a noodle -- like a circular rotini twist (ooohhh! I like that!).
  • Two (Karrissa and Annna) chose the recycling symbol: e.g.

    One application I have found is the use of the Mobius Band design as the universal symbol for recycling. I chose this because we see this symbol used nearly everyday. (source). Annna added the history of the recycling symbol.

  • Several (Barbara, Annie, Amanda) mentioned its role in conveyer belt technology: here's one reference:
    • According to Madachy (1979), the B. F. Goodrich Company patented a conveyor belt in the form of a Mobius strip which lasts twice as long as conventional belts. M. C. Escher was fond of portraying Mobius strips, and they appear in his woodcuts "Mobius Strip I" and "Mobius Strip II (Red Ants)" (Bool et al. 1982, p. 324; Forty 2003, Plate 70). (source, with beautiful illustrations from Escher)
  • Jessica: One practical application of the mobius band that I found was that the concept can be used to created half-twisted, continuous-loop recording tapes. Applying the idea of the mobius band is useful because it allows for almost twice the playing time of a normal recording tape. It also allows for the same amount of tape to be used letting companies save money. (source - with construction tips and other nice applications. Also a joke: "Why did the chicken cross the Mobius band?")
  • Klein bottles (Fortunatus's purse)
  • A Mobius exercise

• We should talk over the reading (Fit the First) in some detail
  • How would you characterize Charles's upbringing?
  • How would you describe his character? (Evidence!)
  • We'll take a look at a few of the problems in the Arithmetic text (p. 30).