[dandrews]

Yes, clever. The dual hinges don't open up on a consistent arc, their action is recalculated each time based on sonar measurement.

[aninhumer]

This sounds cool, but I'm not sure why they couldn't just design it to always open with the tightest possible arc?

[Sammi]

Maybe cause it's slower?

[iridium127]

they probably can actuate both hinges at the same time when a tight arc is not needed