The Look Up: Ce n'est pas une pipe

Sometimes the most random things end up as research. Here's what I looked up this week.
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• ​Languages of Uganda - We were watching the Africa Top Gear special and I thought I heard someone off-camera speaking in French. I was curious if I was right. My quick research (hello, Wikipedia) says, "Not likely." 43 languages are spoken in Uganda and French is not one of them. 
• Scare the Dickens - I had to stop by the office this week and I startled one of my colleagues who didn't expect anyone else to be there. That made me think of this phrase. I 've used it before and never know the history behind it. Turns out it's from Shakespeare and not Charles Dickens.
• Arborvitaes - This word came up on a local list-serv in reference to some continuing plant thefts. I wanted to know just what was being stolen. These are not exactly small.
• Differential Equations - A colleague was talking about how she was looking up OER for math. It reminded her that she used to understand these all of that stuff but no longer. That got us talking about differential equations. I remembered that I did a ton of them but had no recall of what they were.