raint

> scientific "advancement" is less of an increase in knowledge than a decrease in falsity

This framing seems extremely useful from a pedagogical standpoint.

Distinguishing scientific units-of-advancement as 'eliminated falsehoods' + 'the tests used to rule out the untruths' would be have been a wonderful correction in my science education.

The physics & biology behind eyesight.

Our eyes collect light that is "left over"(not reflected) from other surfaces.

Can't explain why but I had always had a sense that objects somehow emanated their own "image". Learning that colors manifest themselves because every other wavelength was absorbed was fascinating.