LOL. I have a similar photo posted over my desk! It’s the cover from The Physics Teacher magazine, may 2002, showing the Pacific Intertie thyristor array. They’re very similar to the Toshiba photo , only there’s three of them, and they’re hanging from a metal ceiling on long insulators.
Where does constructive criticism leave off and small-minded nitpicking begin? Easy. If an explanation creates misconceptions in the minds it’s addressed to, then that explanation needs to be changed. On the other hand, if an explanation has all sorts of crazy wording that makes the experts cringe… yet it gets the point across perfectly to its intended audience, and also causes no serious misconceptions, then any changes can be labeled “nitpicking.” Beware of experts who want to “fix” an explanation and thereby ruin it.
To analyze explanations you cannot just guess at what might cause misconceptions. Instead you have to actually try out your explanations and get feedback from the audience. Sometimes you’ll be suprised over the simple and obvious things they’ll misinterpret. Other times you’ll find that you can get away with a lot, and they never misinterpret sentences which seem very badly worded at first glance.
But pi does equal 3 (but only for very small values of pi!)