Phil Plait: How to Defend Earth From Asteroids
What's six miles wide and can end civilization in an instant? An asteroid - and there are lots of them out there. With humor and great visuals, Phil Plait enthralls the TEDxBoulder audience with all the ways asteroids can kill, and what we must do to avoid them.
Other Videos That May Interest You:
'Hiroshima' by Sarah Kay
Wonderful spoken word poetry from a young master wordsmith.
Britta Riley: A Garden in My Apartment
Britta Riley wanted to grow her own food (in her tiny apartment). So she and her friends developed a system for growing plants in discarded plastic bottles -- researching, testing and tweaking the system using social media, trying many variations at once and quickly arriving at the optimal system.
Defying Gravity
What happens in our brain when we view an optical illusion? The information gathered by the eye is processed in the brain to create an idea or image that does not match with a physical measurement of the stimulus source.
Eve Ensler: Suddenly, My Body
Poet, writer, activist Eve Ensler lived in her head. In this powerful talk from TEDWomen, she talks about her lifelong disconnection from her body -- and how two shocking events helped her to connect with the reality, the physicality of being human.
The Psychology of Your Future Self - Video by Dan Gilbert
Dan Gilbert shares recent research on a phenomenon he calls the 'end of history illusion,' where we somehow imagine that the person we are right now is the person we'll be for the rest of time.