Primes and Squares

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Nathan Merrill

00:44

@El'endiaStarman are there flat-earthers who believe in the speed of light?

I feel like those both fail at the same time

El'endia Starman

01:17

I mean, yeah, nothing in that blog series is going to convince flat-earthers.

Nathan Merrill

I feel like the camera one is a really good one though

dunno. Past ones have felt less sciency. I'd argue the less science required, the better the proof

El'endia Starman

I don't disagree. I will make the point though that this proof is #29. I'd have run out of proofs at #5, if not earlier. I'm sure David MMR has probably effectively exhausted the easy non-sciency ones.

Nathan Merrill

Oh yeah. The only proofs I know are the ones I've been told

I think it's incredible how much the roundness of the earth affects us

2 hours later…

Nathan Merrill

03:52

Clarke and Dawe - The Front Fell Off

►

6 hours later…

flawr

10:13

@DJMcMayhem but it doesn't look very Bézier-ish?

ah the emphasis was probably not using a Bézier curve, but on the shape:)

Isn't it satisfying to find a really nice solution like yours?:)

In case you can draw implicit curves easily you could also consider using algebraic formulations

See e.g. here: en.wikipedia.org/wiki/Lemniscate

or here:codegolf.stackexchange.com/questions/86879/… :)

or here codegolf.stackexchange.com/questions/191062/plane-blowup :D

DJMcMayhem

10:50

@flawr Oh sweet. I knew that had a mathematical name, but I couldn't remember what it was. The Bernoulli shape is lot nicer than mine, I night change it to that

flawr

11:00

@DJMcMayhem The bernoulli lemniscate also has a very simple representation in polar coordinates as well as a nice parametrization in cartesian coordinates.

DJMcMayhem

11:25

@flawr r² = 2a² cos(2 theta)

You're right, that is very nice :)

Although one advantage of what I'm doing right now is that it's very easy to define it as having a certain width (which is important to what I'm doing). If I switched to Bernoulli I'll have to find out a relation between a and the total width of the lemniscate

Wait I'm dumb

The width is just 2a haha

flawr

12:07

@DJMcMayhem whenever you say something like this to yourself it means that you actually just learned something,

so at least you're less dumb than before:)

DJMcMayhem

12:34

@flawr One of my favorite long running jokes in TNB is how anytime someone says "I'm an idiot" it gets stars

3 hours later…

Nathan Merrill

15:20