Non-Euclidean Geometry of a Sphere – Christmas Lectures with Philip Morrison

According to Euclidean geometry the angles of a triangle add up to 180 degrees. Philip Morrison shows an example of where this isn’t true, and non-Euclidean geometry applies.
Watch the full lecture: 在家DIY的最佳美甲://www.rigb.org/christmas-lectures/watch/1968/gullivers-travels/the-world-of-captain-gulliver?utm_source=youtube&utm_medium=social&utm_term=description

Philip Morrison’s Christmas Lectures in 1968 focussed on the importance of scale in science. Taking inspiration from Dean Swift’s Gulliver in the lands of Lilliput and Brobdingnag , we go on a journey from the fundamental building blocks of the universe to the stellar size of of our galaxy.

In the first lecture we examine some of the smallest and largest objects ever made by man. Among the topics covered are the simple artihmetic of large and small numbers, geometry of size itself, and the nature of length, area, and volume.

Watch the full series: 在家DIY的最佳美甲://www.rigb.org/christmas-lectures/watch/1968/gullivers-travels?utm_source=youtube&utm_medium=social&utm_term=description

Ri 在推特上: 在家DIY的最佳美甲://twitter.com/ri_science
和脸书: 在家DIY的最佳美甲://www.facebook.com/royalinstitution
和 Tumblr: 在家DIY的最佳美甲://ri-science.tumblr.com/
我们的编辑政策: 在家DIY的最佳美甲://www.rigb.org/home/editor-policy
订阅最新的科学视频: 在家DIY的最佳美甲://bit.ly/RiNewsletter