how do you feel about tau
τ is cool, but really not practical for me.
And I honestly do not feel like the τ vs π argument makes any sense at all. The two numbers are both technically correct and are just different ways of relating the circumference of a circle to two related, but DIFFERENT aspects of its geometry.
As far as learning goes, τ does make a lot more intuitive sense than π and I will definitely give it that. It most certainly does make sense to relate the radius of a circle to its circumference!
But the idea that π is wrong and that τ is somehow “more correct” is a weird logical fallacy:
There is a relation between the diameter of a circle and the circumference called π
There is a relation between the radius of a circle called τ
We use the measurements utilizing radii more than we use diameters
Therefore π is wrong.
???? This argument doesn’t make sense. They’re two different relationships based on two different things. It’s like saying Fahrenheit is wrong because Celsius is easier to use.
From the stance of someone in astrophysics, I really don’t think making τ the standard is practical at all. I have issues with it because τ is used as a symbol for many many MANY other things in my field. We use τ to represent time constants, optical depths, and torque and I feel like making the switch would be incredibly difficult and confusing because we use π in some of those. It’d make my life (and a bunch of other peoples’ lives) a lot more difficult to make the big shift, especially since π is not technically incorrect given its definition.
I say that both of them are good. I’m in camp “using π” because it’s most practical for me, but I don’t care if someone else uses τ because it works for them!
Ok I got distracted but anyways yes this is my opinion
If people do not believe that mathematics is simple, it is only because they do not realize how complicated life is.
(via brittbutterfly21)
Fifty years of space exploration. Well, American space exploration at least. Originally published by National Geographic back in 2008, a few things have changed:
Several new missions have embarked to our Moon since 2008, including the Lunar Reconnaissance Orbiter, GRAIL (mission complete, RIP) and LADEE, just launched last week.
The Mars Curiosity rover, duh!
Juno, launched in 2011, is only halfway to Jupiter today. That big planet is far away.
The Solar Dynamics Observatory has given us beautiful solar spectra to stare at.
New Horizons is set to be the first spacecraft to fly by Pluto and its moons in 2015. It rode on the fastest launch vehicle ever in order to begin its epic journey.
And Voyager has left the building …
Embigginate this beautiful piece of work here.
Mount Shasta, California
four-bar linkages, and how changing the length of the bars affects the motion in one particular case
On the back roads of Glacier National Park, Montana With Andrea
Illustrations from John Stillwell’s Classical Topology and Combinatorial Group Theory
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