Citrus fruits contain small pockets of liquid which burst upon contact releasing a jet of strong smelling oil into the air. The strong smell is designed to attract animals to the site to help to spread the seeds of the fruit as far as possible. Andrew Dickerson at the University of Central Florida has recorded the squirting motion using high speed cameras to try to understand the exact process of these 'micro-jets' of citrus oil.Watch Now
CARTA (Center for Academic Research and Training in Anthropogeny) at the University of California San Diego celebrates its 10th anniversary with a whirlwind tour of anthropogeny, the study of the origin of humans, by addressing these questions across multiple disciplines: What do we know for certain? What do we think we know? What do we need to know? How do we proceed?Watch Now
Professor John Hardy, University College London, explains how knowledge of the role that genetics play in the development of neurodegenerative conditions has been harnessed to develop novel and more successful therapeutics.
Aerogels are the world's lightest (least dense) solids. They are also excellent thermal insulators and have been used in numerous Mars missions and the Stardust comet particle-return mission. The focus of this video is silica aerogels, though graphene aerogels are now technically the lightest.
In ancient Greece, the best-known remedy for a long-standing headache was to drill a small hole in the skull to drain supposedly infected blood. Fortunately, doctors today don’t resort to power tools to cure headaches, but we still have a lot to learn about this ancient ailment.Watch Now