Could you survive in a falling lift if you jumped at the last minute? Adrenaline junkie and self-confessed geek Greg Foot will suffer for science to answer your questions..
BBC © 2012 The BBC is not responsible for the content of external sites. Read more.
This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.