Op 24/02/2022 om 17:57 schreef Robert McGregor:
> David Buck <dav### [at] simberoncom> wrote:
>> This visualization is mesmerizing.  It shows that the primes aren't
>> completely random but they also aren't predictable.  It really makes you
>> think about the nature of primeness.
>>
>> Thanks for sharing.
> 
> Thanks David!
> 
> David Buck <dav### [at] simberoncom> wrote:
>> BTW, is there any reason some of the spheres are green and others are blue?
> 
> No reason, they were all blue at first. Just for variation I added some random
> green/blue coloration to each sphere:
> 
>     pigment { rgb <0, RRand(0.2, 0.5, R), RRand(0.25, 0.9, R)> }
> 
> 
> Cheers,
> Rob
> 
> 

Mesmerizing indeed. And an excellent way to show this. First time I 
heard about an ulam spiral...

-- 
Thomas

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