What in the World? EP04

1) How tsunamis work | Alex Gendler 2) Whoever builds something here will be rich beyond measure | Fabio Pacucci 3) How to grow a glacier | M Jackson 4) How light technology is changing medicine | Sajan Saini 5) How do ocean currents work? | Jennifer Verduin 6) What makes volcanoes erupt? | Steven Anderson 7) If superpowers were real: Immortality | Joy Lin 8) The science of symmetry | Colm Kelleher 9) Why is this 2,500 year old shipwreck so well-preserved? | Helen Farr and Jon Adams 10) Dark matter: The matter we can't see | James Gillies 11) The sonic boom problem | Katerina Kaouri