#DidYouKnow that we actually see upside down. It's our brain that turns the image the correct way up. https://t.co/Bo9CnmgRYK
— Simon Donne Optician (@SimonDOpticians) November 9, 2018
from Twitter https://twitter.com/SimonDOpticians
Friday 9 November 2018
#DidYouKnow that we actually see upside down. It's our brain that turns the image the correct way up. https://t.co/Bo9CnmgRYK
from Twitter https://twitter.com/SimonDOpticians
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