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What’s so special about keeping it ‘where your back is’? The moon is rarely located directly overhead. Wherever it is, keeping it in a fixed relative position w
by jameshart 3y ago
What’s so special about keeping it ‘where your back is’? The moon is rarely located directly overhead. Wherever it is, keeping it in a fixed relative position will get you going in a straight line.
The article talks about the ‘dorsal flight response’ being more about the overall alignment to the sky hemisphere, not the moon specifically.
“the brightest part of the visual field has been the sky, and thus it is a robust indicator of which way is up. This is true even at night, especially at short wavelengths (<450 nm)”
- rdtsc 3y ago> What’s so special about keeping it ‘where your back is’? Since we're to imagine the grandparent flying around like an insect. I imagined them as person flying but with insect wings. Since we're mammals with eyes pointing straight ahead, as opposed with them being on the side of our heads, we'd need some light sensor on our back to ensure we're flying straight at night and keeping the moon above, as opposed to having to look behind every so often to ensure the moon is still there :-)