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Cake day: June 15th, 2023

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  • The Stanley Cup (North American hockey trophy) has a full-time caretaker who travels with it. Every member of the winning team gets some time with it. They can show it off in their home town, eat their breakfast cereal out of it, whatever. It’s probably seen a lot of white powder. But this guy is always there to take care of it. And to wash it. Often multiple times per day.

    They recognized the consequences of sending the trophy traveling like they do, and instead of switching to a replica or something they got it a bodyguard.

    These kind of trophies that travel are the best. So much more interesting than the ones that sit in display cases all the time. But you have to either dump resources into protecting it or be willing to replace/repair when necessary.







  • I’m a noob, but often what drives up lens cost is the complexity associated with making the image better over the whole field of view. Lenses have various inherent errors (called aberrations) that are corrected by a combination of complex surface profiles on individual lens elements and stacking multiple individual lens elements to cancel each other’s errors out. A scope likely only needs good correction near the center, where the user will be looking most of the time, while a camera lens needs good correction everywhere so the whole photo looks good when you view it later. Wider field of view makes good correction much more complicated and expensive very fast.