Bungalow Camping in France

September 23, 2017 By: erik Category: Family, France, Travel

French BungalowMy wife, in theory, but almost never in practice, gets off work at 6pm, and has a 30 minute commute back home. As previously researched, the trip to our camping ground in the Landes region of France, was two and a half hours. So ideally we were hoping to arrive to our bungalow at 9pm. Due to work emergencies and children demanding to do pee-pee (even though they just had) before leaving, we ended up leaving at 7:30pm. When I pasted the address of our campground into Google Maps, Apple Maps, and Waze, they all agreed that it was about 3.5 hours away. Ugh! They must be intelligently taking traffic into account.

Luckily, I had spoken to the campground earlier in the day, and when I had predicted a 9pm arrival, they told me that that was way too late for the office to be open, and that they would put our key and stuff into a combination lock box, with the combination 010203048 (modified for publication), so I was prepared.
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How fast do you need to drive in the rain to keep your rear window dry?

November 09, 2011 By: erik Category: Geeky, Math

Car Sketch - Rear Window AngleLast week, we had quite the deluge, which coincided, unfortunately, with me having to drive 120 km. I noticed that whenever I slowed down, the rear window would get wet and hard to see out of. Once I sped up again, one wiper pass dried it off and it stayed dry until I slowed down again. This is an obvious scenario for anyone who has ever driven, or anyone who thinks briefly about the physics involved: when you’re driving fast, the rain doesn’t hit your rear window. Out of the blue (or gray, in this case), my mouth spoke the words, “I wonder what’s the minimum speed I have to drive to keep the back window dry?” My wife immediately intuited that “it depends on the shape of the car”, by which she meant the angle of the rear window. This insight made the original question all the more interesting to me, because it gave me an equation to plot! Are you getting excited yet?
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