Daniel Dennett, known for having previously explained thinking, religion, and consciousness, recently spoke at the Royal Institution where he did a most excellent job of explaining memes [1-hour video].
What do 3D printing, jelly, liver transplants, chainmail, dental fillings, ferrofluids, and the Six Million Dollar man have to tell us about our future? Materials scientist and engineer Mark Miodownik lets us know in this Royal Institution lecture.
Royal Institution Christmas Lectures: inspiring and educating children and adults alike since 1825 (with a break for WWII)
"The Christmas Lectures at the Royal Institution are, by a time-honoured custom, invariably addressed to a "juvenile audience." This term, however, has always been held to be an elastic one, and to include those who are young in spirit as well as those who are young in years. The conditions, therefore, necessarily impose on the Lecturer the duty of treating some subject in such a manner that, whilst not beyond the reach of youthful minds, it may yet posses some elements of interest for those of maturer years." Thus began the preface to Waves and Ripples in Water, Air and Æther (alt. link: Google books), the published version of the 1901 lecture given by J.A. Fleming, M.A., D.Sc, F.R.S., providing a good overview of the lecture series that started in 1825 (list in PDF). [more inside]