One of my least favorite electrical engineering courses in college was on signals and communications. I remember there being a lot of Fourier Transforms. I also remember falling asleep a lot, because it was a two-hour lecture with the lights turned off. Maybe if the demos were more visual like this, I would’ve stayed awake. (Probably not.)
Visual introduction to the Fourier Transform
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How the American Work Day Changed in 15 Years
The American Time Use Survey recently released results for 2018. That makes 15 years of data. What’s different? What’s the same?
What Alcohol People Around the World Drink
Americans get most of their alcohol from beer, but it’s not like that everywhere.
Timeline of California Wildfires
The wind was blowing smoke and ash from wildfires further up north from where I live. The sky turned an eerie orange. I wondered about past fires and made the chart below.