⌂
⚲
?
✕︎
clip:286439
clip:286439
clip:286439
clip:286439
clip:286439
clip:286439
clip:286439
clip:286439
clip:286439
hi
{"x":0,"y":0} to {"x":0,"y":0}
Copyright © details on Wikimedia Commons.
Fundamentals of optics lecture notes.jpg
▦