How Encryption Keys Work - with Chris Bishop

What does the padlock icon on your internet browser mean and why is encryption important? In this clip from 2008 CHRISTMAS LECTURES "Hi-tech trek", Chris Bishop uses coloured water to demonstrate how information is transferred on the internet.
Subscribe for regular science videos: http://bit.ly/RiSubscRibe

This video is from our 2017 advent calendar. Watch the full series here: Transmissions through Time

Or watch the full lecture here: http://www.rigb.org/christmas-lecture...

The Royal Institution 2017 advent calendar ‘Transmissions Through Time’ looks through the lens of CHRISTMAS LECTURES past to share the best demonstrations around the science of communication. From Attenborough and Sagan to Woollard and Fong, we revisit old favourites and find new gems to bring you a little gift of science every day in the lead up to Christmas. http://bit.ly/RiAdvent17

The Ri is on Twitter: Twitter: ri_science
and Facebook: Facebook: royalinstitution
and Tumblr: Tumblr: ri-science
Our editorial policy: http://www.rigb.org/home/editorial-po...
Subscribe for the latest science videos: http://bit.ly/RiNewsletter

• #science_technology
• #ri
• #royal_institution
• #christmas_lectures
• #encryption
• #chris_bishop