Freaky Dot Patterns - Numberphile
Tadashi Tokieda is back, this time with Moiré Patterns. More with Tadashi: http://bit.ly/tadashi_vids More links & stuff in full description below ↓↓↓ Out thanks also to our Patreon...
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If you ask real experts in probabilitythey'll say this is not random because it's far too uniform, you know.Really, Poisson... That kind of thing would have more gaps and so forth.But it's random enough and what I'm about to show youworks with any sufficiently random dots. OK.Now, I photocopied this on a transparency.The exact copy, I put one on top of the other.The result is this.Interestingly boring, shall I say, really amazingly boring.But now, let's shift the transparency against the bottom sheet a little bitand what you see is this.You see those concentric circlesaround a common center,and the reason, actually in retrospect, is not too surprising becausewhatever I'm doing to the transparency is a Euclidean motionand we...
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If you ask real experts in probabilitythey'll say this is not random because it's far too uniform, you know.Really, Poisson... That kind of thing would have more gaps and so forth.But it's random enough and what I'm about to show youworks with any sufficiently random dots. OK.Now, I photocopied this on a transparency.The exact copy, I put one on top of the other.The result is this.Interestingly boring, shall I say, really amazingly boring.But now, let's shift the transparency against the bottom sheet a little bitand what you see is this.You see those concentric circlesaround a common center,and the reason, actually in retrospect, is not too surprising becausewhatever I'm doing to the transparency is a Euclidean motionand we...
