On 2/08/2015 21:13, Anne Courtois wrote:
> Never mind.
>
> I played with the cylinder to discover the basic concept of the lightsource
> being inside the cylinder. Silly me.
>
> If the moderators want to delete my post, I'll play along. LOL

a bit off topic, but: does this happen? Forums (technically, this is a 
newsgroup, but I suppose I'm the only one still using nntp to access 
this) that delete posts where a person answers his/her own question?

Sounds like throwing away possibly useful information :/

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