OCW
What has no ears but can still hear?
The world is always abuzz with sounds, many of which human ears simply can’t hear. However, other species have extraordinary adaptations that grant them access to realms of sonic extremes. And some of them don’t even have ears— at least, not like we typically imagine. So, which is the best lis..
TED
These animals can hear everything
The world is always abuzz with sounds, many of which human ears simply can’t hear. However, other species have extraordinary adaptations that grant them access to realms of sonic extremes. And some of them don’t even have ears— at least, not like we typically imagine. So, which is the best lis..
TED
Why broken hearts hurt — and what heals them
What's the relationship between physical and mental pain, and how can you ease both? Revealing how your experiences of love, loss and pain are deeply intertwined, neuroscientist Yoram Yovell sheds light on the surprising role of your brain's endorphins and opioid receptors to ease physical..
TED
Can you transplant a head to another body?
In 1970, neurosurgeon Robert White and his team carted two monkeys into an operating room to conduct an ambitious experiment. The objective was to connect the head of Monkey A to the body of Monkey B, in what he considered a whole-body transplant, with the ultimate goal of one day performing this su..
TED
My quest to cure prion disease — before it's too late
Biomedical researcher Sonia Vallabh's life was turned upside down when she learned she had the genetic mutation for a rare and fatal illness, prion disease, that could strike at any time. Thirteen years later, her search for a cure has led to new insights about how to catch and prevent disease ..
TED
How does an air conditioner actually work?
Typically, with any piece of technology, you pump one unit of energy in and you get about one out. That’s just the first law of thermodynamics: energy has to be conserved. But there’s a piece of technology called a heat pump, where for every bit of energy you put in, you get three to five times ..
TED
