A journey through the centre of the earth

[GeoffW1]

Hi,

This would be apparently quite quick once you overcame a few small difficulties:

http://www.abc.net.au/science/articles/2015/05/19/4236492.htm

Cheers

[goober]

I recall this being discussed a few years ago (on QI?) and they came to the same conclusion.

For those into that sort of thing, Melvyn Bragg's excellent In Our Time podcast featured The Earth's Core a few weeks back. It was very good.