Christmas Science Lectures

Oxford University
Christmas Science Lectures

Join the hundreds of school children from around the country taking part in the annual Oxford University Christmas Science Lectures, where world renowned scientists aim to entertain and inspire the next generation with their (often explosive) insights into science.

  1. 15/12/2015

    Carrots, spiders and red salt – a fascination with light capture in biology

    Using physics, chemistry and biology, the fascination with light capture in nature will be explained in a multi-coloured and animated well – prepare for six-eyed spiders, purple carrots and red salt. One of the most complex organs in higher life forms is the eye – even Charles Darwin commented that evolution of the eye by natural selection at first glance seemed "absurd in the highest possible degree”. Many living things on earth, from the most simple of single cell organisms to humans, respond to light using a chemical compound that appeared around 400 million years ago – the compound is called retinal. Biology has evolved and exploited this compound using some of the most fundamental principles of physics in ways that are so incredible, that the topic still fascinate scientists today. For more information about the lecturer's work please go to: http://www.bioch.ox.ac.uk/aspsite/index.asp?pageid=603 Our eyes can detect huge ranges of light, at a resolution and precision that far escapes any known man-made device. Even simple organisms that use retinal produce electrical energy from the sun at efficiencies that far exceed any solar cell. And to add to these amazing observations, light detection in nature occurs faster than in any man-made device. Creative Commons Attribution-Non-Commercial-Share Alike 2.0 UK: England & Wales; http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

    38 phút

Giới Thiệu

Join the hundreds of school children from around the country taking part in the annual Oxford University Christmas Science Lectures, where world renowned scientists aim to entertain and inspire the next generation with their (often explosive) insights into science.

Nội Dung Khác Của Oxford University

Bạn cần đăng nhập để nghe các tập có chứa nội dung thô tục.

Luôn cập nhật thông tin về chương trình này

Đăng nhập hoặc đăng ký để theo dõi các chương trình, lưu các tập và nhận những thông tin cập nhật mới nhất.

Chọn quốc gia hoặc vùng

Châu Phi, Trung Đông và Ấn Độ

Châu Á Thái Bình Dương

Châu Âu

Châu Mỹ Latinh và Caribê

Hoa Kỳ và Canada