Role ideas:

  * Record-keeper:
    * Types out info in the documents
    * Check that everyone is alright with what's written.
  * Hands-on:
    * Physically manipulates the apparatus to run experiments
  * Physics interpreter:
    * Observes/Analyzes the data as it comes in, may be responsible for doing quick sanity checks 
      * "is a 10s period really reasonable to observe?"
  * Skeptic:
    * Considers ways in which the model and setup might have mis-matches
  * Inventory analyzer:
    * Looks at what is available in the room for the lab, brings findings back to group
  * Decider:
    * Makes the final choice at important moments
      * e.g. "We should start out with 4 different angles"
  * Scholar:
    * Reads out important parts of the wiki to the group, directs questions.