Pi is a particular real number that we can calculate in various ways not having anything to do with circles. in practice, π≈3.141592654 would be OK everywhere in the part ofġ6 digits, for converting frequencies from Hz to angular frequency.įrequencies can now be measured with a precision approaching 1 part inġ0^16, so dealing with those numbers would require knowing Pi to 16Īs others have pointed out, we don't really get the value of pi experimentally. How many digits of pi do physicists actually need or use? Observable universe to within the width of a single hydrogen atom.Įven if we went out and measured pi with the most sophisticated instruments that we have, we wouldn't be able to get very many digits of accuracy. Taking pi to 39 digits allows you to measure the circumference of the For example in Greg Bear's Eon there's a mathematician character who concludes she's in a curved area of space by measuring the value of $\pi$ and getting a nonstandard value. Science fiction authors sometimes get this wrong. A circle of the same size located in empty space would have a $\frac CD$ much closer to $\pi$). (The curvature is caused by Earth's mass being inside the orbital circle. The experiment didn't actually measure the circumference of a large circle, but the results imply that the geometric circumference of a circle approximating the satellite's orbit around the earth is about one inch shorter than $\pi$ times its diameter, corresponding to $\frac CD\approx 0.9999999984\, \pi$. This has been measured directly in the vicinity of Earth by the Gravity Probe B experiment. However, $\pi$ as the limit of $\frac$ for small circles is the same mathematical constant for all possible curvatures of space.Īccording to the General Theory of Relativity we live in a slightly curved space. For small circles (with diameter tending towards 0) the ratio will converge towards the one unchanging mathematical constant $\pi$ - as circles get larger the ratio will either become larger and smaller according to whether the curvature of space is negative or positive. More precisely, the ratio will depend on the size of the circle. What happens in a curved space is that the ratio between a circle's circumference and diameter is no longer the same for all circles. TL DR: Just pick another dating site - there are several.There's an underlying error in the question, namely the assumption that being in a curved space would result in a "different measured value of $\pi$".
#Is there a difference between circle and circle pay app professional#
Probably green=currently manned by a professional scammer, gender unknown, ready to coax personal info out of you however they can lol You’re paying them to latch on to your credit card and keep charging it as long as they can legally get away with it, and not much else.įor what it’s worth, one would assume the red and green lights are supposed to mean this person is currently on line, or currently on line BUT using their call feature, or maybe haven’t logged in in x days, but honestly, I’m pretty sure most of those profiles are fake anyway. But, its just so weird, seeing these lonely, just-trying-to-get-a-date-ffs /r/match posts float through my back pages every once in a while, where nobody just goes ahead and says what we’re all thinking:
Why am I even subscribed to this subreddit? I only feel guilty about shitting on the site, where I’m sure, real, probably perfectly nice human beings are working there, just trying keep the lights on at the office long enough to line up a new job or whatever. You should probably google “how to successfully unsubscribe from match /r/match” while you’re at it. Just scroll through this subreddit and you’ll soon get an idea why.
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