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Very cool report and photos to boot Gary. Those lava fields are impressive. The road looks like a carpet laid out on top of black bubble wrap. Amazing to see some shrubs still growing on top of it.
I had no idea there were so many types of actuators at the back of those segments. Must be a lot easier to realuminize them too given their size (just picturing the AAT primary move). I assume they have more segments than the scope primary needs so they can rotate them for maintenance? Are they interchangeable or do they have a very specific base profile for the spot they fit in? Or do they have a "generic" profile then the actuators push it in place depending where they are located in the mirror array? Also if that's the case can they use them on the other primary mirror next door seamlessly?
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