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Genre: Science & Technology
Uploaded At Mar 18, 2024 ^^
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RYD date created : 2024-11-26T01:33:02.062273Z
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Top Comments of this video!! :3
I find the 5th mystery regarding units (or the dimensions of physical quantities) a very insightful one to pick out. If you take a look at Isaac Newton’s own writings, you’ll find that he didn’t use units for most his calculations but instead a ratio of some unknown quantity versus some other known fixed quantity of the same type as the first e.g. mass of A : mass of B instead of using kilograms as the standard measure. So I think units are just a human choice of a standard, a benchmark, a reference, a baseline to which all other measures are compared against. It’s where mathematics ends and physics begins or where the world of the abstract concepts created in the human mind transitions to the world of the concrete objects of reality which exists external to our thinking.
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I find number 4 particularly interesting: in some way it's not reality itself having a time direction, but rather it's measuring (and in particular perceiving) that requires an accumulation of information, which is in some way related to entropy, so we can only measure things in that order corresponding to increasing entropy. In this sense the whole physics, relying on the possibility of measurement, describes reality as having an orientation in time, which is not real in itself, but it's the only way reality can be measured and perceived.
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I’m an old retired scientist (octogenarian). What do you think about time being simply the metric of all matter relative to itself? For example, if I could magically stop all matter from moving, time would stop. If I could magically make all matter reverse it’s movement, time would go backwards. If all matter were crushed into a singularity without dimension, time nor matter would exist. However, if a Big Bang were to occur, matter and time would instantly exist. “Something” and “Nothing” are the same thing in two different states like water and ice.
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@moosewild4239
8 months ago
Every time I watch Sabine I'm reminded how little I know. It's good to know we have serious people like her asking the serious questions.
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