55percent_Unicorn
55percent_Unicorn t1_j2bcixd wrote
Reply to comment by B-F-A-K in eli5 How does measuring area in square miles work? If you have very mountainous terrain, does that increase the area compared to somewhere that is very flat? by bluejeans90210
He also made a somewhat epic video on the topic. I can't actually remember which came out first, but they were basically simultaneous to a first approximation.
Also, is this your card?
55percent_Unicorn t1_j2ed91a wrote
Reply to comment by jswansong in Eli5 How exactly does Noise cancellation work? That too in such small airbuds by Professional-Ad3441
Excellent explanation.
Maybe worth adding that noise cancelling often gets mixed up with noise suppression.
Noise cancelling = actively reducing the noise by making the opposite sound (as described above)
Noise reduction = passively blocking the sound from getting in by plugging/covering your ear canal