Comedian Ryan Singer (@RySing) joins the proceedings this week to talk about Eskimos, heart-to-heart hugs, the origin of toasting, when to use questions to influence people, the return of brontosaurus, the head transplant volunteer and the fears about what could happen to him, deaf people sneezing silently, wiping memories and the need for reinforcement, lip-synching and the death of comedy, the world's first battery rocket, a mesh that separates oil from water and Ryan's podcast Me & Paranormal You.

This episode is sponsored by Western Razor. Visit westernrazor.com and use offer code "science" at checkout for $5 off your order.

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Direct link to mp3 (right-click to download)