This website uses cookies and similar technologies to deliver its services, to analyse and improve performance and to provide personalised content and advertising. Information about your use of this website will be shared with Google and other third parties. Read our privacy policy.

An image showing Malika Jeffries-EL with 'Beyond the Elements' presenter David Pogue. Both are wearing white lab coats. Malika is holding long tweezers with which she is pulling a stringy substance - nylon - out of a beaker filled with a reddish liquid.