""If I said, 150mm, they'd get out a ruler and look." uhm, I'm from a metric country and I can't relate. Must have been the people you were working with I guess."
"Yay another open ear plug design that will pollute train compartments with annoying noise affecting everyone but the one person who actually gets the music out of them."
"Not true. The one reason why threaded lids unscrew so hard is exactly the low pressure inside. Try it yourself: take jar off the shelf, notice how a bit of torque applied will do nothing. Lever the lid off a little with e.g. a spoon. You will hear the sound of air rushing in, the lid pop up and will be surprised how easy it comes off."
"Maybe it was simply the outside pocket that was placed on the left so it would be more easily reachable with the right hand. The inside pocket then had to go on the other side."
"Because then you'd have, e.g., circumferences of 6 inch on one side and 152.4 mm on the other, meaning you'd need to do ugly calculations to come up with the total length when spinning for more than one revolution."
"Mh it's cool, but I don't get what's the real benefit. With all the added complexity to enable the coupling of the two vehicles I have the impression that giving the car it's own front wheel and steering unit would be about equally expensive. Albeit with the benefit of actually having two vehicles. Maybe if parking space is limited the combo is appreciated."