What I learned on Twitter yesterday

Yesterday’s Google doodle got science people fired up.

I got the periodic/wave/Hertz thing. But I tried to see “Google” in it and failed. So I tuned out, feeling annoyed.

Then Frank Noschese, high school physics (etc.) teacher and all around smart person stepped in:

Conversation ensued. Basically, Chris Lusto (high school math teacher and all around smart person) and Frank went back and forth on what exactly constitutes a sinusoidal curve. 

On Twitter.

Now I was interested. Lusto’s question prompted me to respond:

And then this question got inside my head. Is it still sinusoidal if it’s composed of an infinite series of sinusoids?

I didn’t care even a little bit what the formal definition would be. I was struggling with the spirit of things. Does it make sense to call this thing sinusoidal?

And then walking to the parking lot at 9:00 at night, it struck me.

On Twitter.

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3 responses to “What I learned on Twitter yesterday

  1. I wonder if what the Fourier series of the doodle looks like… http://en.wikipedia.org/wiki/Fourier_series

  2. I think you missed the point. The artist couldn’t handle a sine curve and drew a circular arc instead. Sheer laziness.

  3. Pingback: Informal Poll on Math Edu Tweeters | teaching/math/culture

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