What Happens To Sunbeams On Their Journey To Earth? - Christmas Lectures with George Porter

George Porter shows what happens on a sunbeam’s journey from the sun to Earth, with some help from John Tyndall’s blue sky tube. Watch the full first lecture of the series: https://www.rigb.org/christmas-lectur... George Porter gave the 1976 Christmas Lectures "The Natural History Of A Sunbeam" about the power of light, from the role it plays in stimulating life to supplying energy to our homes. The first lecture "First Light", where this clip is from, sees George explaining how colour is created through light ‘scattering’ which John Tyndall discovered. Watch the full series: https://www.rigb.org/christmas-lectur... Comments have been disabled on this video in compliance with YouTube's COPPA regulations. Our Christmas Lecture series is aimed at children and we have marked the videos to reflect this. You can find out more about COPPA here: https://support.google.com/youtube/an... The Ri is on Twitter:   / ri_science   and Facebook:   / royalinstitution   and Tumblr:   / ri-science   Our editorial policy: http://www.rigb.org/home/editorial-po... Subscribe for the latest science videos: http://bit.ly/RiNewsletter