Re: Math posers. Re: An new and very interesting intellectual game!

Mark Brader wrote:
> > > > Mm, sometime in the 1890s?
>
> > His most famous work was ... The Exploration of Cosmic
> > Space by Means of Reaction Motors ... published in 1903 ...
>
> Yeah, that's what I was thinking of.  Oh well.
> 

You were right. But that's not the answer.