Mesolabe Compass and Square Roots - Numberphile
video description
Not to contradict the Professor, but everyone doing this form of calculating is applying Calculus by their actions, from observation and experience in practice, and illustrates how important a formal Nomenclature is. This is another excellent demonstration of why Science Education exists and review of methodology in a complete Holographic Perspective Principle context is required reiteration and reorientation at University levels. )
Thank you for such a perfect demonstration of correspondence between 0-1-2-ness picture plane geometrical relationships with point-line-circle time-timing sync-duration parallel normalisation positioning and density-intensity functionality of e-Pi-i omnidirectional-dimensional real-numberness condensation in 3D-T AM-FM Timing-spacing Holographic Modulation Mechanism, as those Greek Geometers used it.
It's one of those -when you see how- things from learning by doing Intuition and Observational discovery, inherent in time-timing holographic quantization Image, self-definition circumstances.
Date: 2022-04-09
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Comments and reviews: 9
Spitzel
WOW! Actually, I found rooting in the video very similar to my mind problem I solved month ago while going to office. I tried to find the distance on which horizon is lower on 1 cm than horizontal line from my view (actually its a -surveying instruments inaccuracy because of Earth curvature. I found that you don't need to square 600 billions, because its dissapear in calculations. Its very similar to the picture in a video, but a bit different.
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WOW! Actually, I found rooting in the video very similar to my mind problem I solved month ago while going to office. I tried to find the distance on which horizon is lower on 1 cm than horizontal line from my view (actually its a -surveying instruments inaccuracy because of Earth curvature. I found that you don't need to square 600 billions, because its dissapear in calculations. Its very similar to the picture in a video, but a bit different.
reply
Saitir
As absolutely fantastic an educator as Johnny is, can we not give any credible platform to deniers of man made climate change please? -
As much as this is not about that, it bolsters the credibility of their arguments amongst more susceptible people. -
It's a crying shame as people with his communication abilities would be a boon to the cause.
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As absolutely fantastic an educator as Johnny is, can we not give any credible platform to deniers of man made climate change please? -
As much as this is not about that, it bolsters the credibility of their arguments amongst more susceptible people. -
It's a crying shame as people with his communication abilities would be a boon to the cause.
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Greg
Wow. Thank you for this nice surprise. I wanted to provide a counter example, but I failed. I watched this video on my cellphone; I couldn't figure out the geometry for sqrt(1) in my head, so I turned to CAD. There, I drew the other common square roots. Now, going the other way, sqrt(0. 5) does work using this method!
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Wow. Thank you for this nice surprise. I wanted to provide a counter example, but I failed. I watched this video on my cellphone; I couldn't figure out the geometry for sqrt(1) in my head, so I turned to CAD. There, I drew the other common square roots. Now, going the other way, sqrt(0. 5) does work using this method!
reply
rbwannasee
What a treat to see Johnny Ball on Numberphile. Thank you. I remember being fascinated by his TV shows as a kid in the UK. Too bad my parents didn't follow on where he left off. People - if you can see your children becoming interested or inspired by something - please encourage them further as much as you can.
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What a treat to see Johnny Ball on Numberphile. Thank you. I remember being fascinated by his TV shows as a kid in the UK. Too bad my parents didn't follow on where he left off. People - if you can see your children becoming interested or inspired by something - please encourage them further as much as you can.
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sam111880
Ya it's pretty cool what similar triangles can do for you interms of multiplication/ division as well as other geometric shapes to cover more complex operations. Do agree calculus definitely finalized this for us. However the creativity of geometry and similar triangles is something we don't cover enough
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Ya it's pretty cool what similar triangles can do for you interms of multiplication/ division as well as other geometric shapes to cover more complex operations. Do agree calculus definitely finalized this for us. However the creativity of geometry and similar triangles is something we don't cover enough
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James92453
Around 1996 I went to see him give a physics lecture at RAF Cranwell, and he was absolutely brilliant. Such enthusiasm, the way he held that lecture theatre for an hour/hour and a half, he was like an interesting rockstar. Just love this man and I'm really pleased to see him doing content for Numberphile.
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Around 1996 I went to see him give a physics lecture at RAF Cranwell, and he was absolutely brilliant. Such enthusiasm, the way he held that lecture theatre for an hour/hour and a half, he was like an interesting rockstar. Just love this man and I'm really pleased to see him doing content for Numberphile.
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Marcus
I remember finding these methods when I sought to see geometry the way the ancient Greeks did. They're just as satisfying now as they were then. However, I remember that they were attributed to Thales only - no mention of Hippocrates!
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I remember finding these methods when I sought to see geometry the way the ancient Greeks did. They're just as satisfying now as they were then. However, I remember that they were attributed to Thales only - no mention of Hippocrates!
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feha92
Huh, so this is how they got the sqrt of negative numbers back before we figured out imaginary numbers. They made the length negative, and then the measured length of the resulting perpendicular is the answer.
; )
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Huh, so this is how they got the sqrt of negative numbers back before we figured out imaginary numbers. They made the length negative, and then the measured length of the resulting perpendicular is the answer.
; )
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wcpgw
Hippocrates of Chios also contributed to the -squaring the circle- problem: He found that some shapes bounded by arcs had the same area as triangles or rectangles (Lunes of Hippocrates)
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Hippocrates of Chios also contributed to the -squaring the circle- problem: He found that some shapes bounded by arcs had the same area as triangles or rectangles (Lunes of Hippocrates)
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