And you didn't flush baby wipes.

No.

Dental floss?

No.

Cat litter?

Ah, no, no.

Hmm. I just can't understand what...

Hang on a moment.

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This podcast originally aired in 2013. This is the Nature Pastcast, each month raiding Nature's archive and looking at key moments

in science. In this show, it's back to the swinging 60s, a time when Continent 2 began to move.

Nature, 7th September, 1963.

Page 947.

Magnetic anomalies over oceanic ridges.

The paper, when published, went over like the provobial lead balloon.

I mean, there's all sorts of comments in the literature, you know, people referring to it as a startling idea.

Now it's kind of taken as one of the first and most important steps on the way towards

plate tectonics, but at the time, it kind of fell like a stone in the water.

...