Not the Jet Propulsion Laboratory

How to pass a few minutes outside on a very hot day? Do a demo in front of 90 students when you’re not sure of your equipment, of course! This was in the cause of demontrating Newton’s Laws of Motion in my Physics 100 class today. I’m actually moving backwards at a good speed in this shot.

jet propel 3

jet propel 2jet propel 1Fun was had by all, and I got my first job-related injury from not realizing that the metal nozzle spins around and whacks your trigger hand hard if you don’t hold it…. Would have got better acceleration if I’d pointed it straight forward, but my hand was now injured a bit at that point, so I did what I could…. All’s well that ends well!

-cvj

(Thanks for taking the pictures, Tameem.)

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5 Responses to Not the Jet Propulsion Laboratory

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  2. Clifford says:

    Essential equipment when outdoors. Goes with me everywhere.

    -cvj

  3. Supernova says:

    I love your hat!

  4. Clifford says:

    Of course… and I intend to do so. Every opportunity to talk about more physics is seized upon!

    Cheers,

    -cvj

  5. John Branch says:

    You may have lost some speed from angling the nozzle up, but you could’ve used that to talk about force vectors.