To Sleep, Perchance to Dream

To Sleep, Perchance to Dream

Why do we sleep? Well… that’s a tricky question. More easily answered is the question,”How do we sleep?”

In this episode of Crash Course Psychology, Hank discusses some of the ways our brain functions when sleeping and how it can malfunction as well.

The new bionics that let us run, climb and dance

The new bionics that let us run, climb and dance

Hugh Herr is building the next generation of bionic limbs, robotic prosthetics inspired by nature’s own designs.

Herr lost both legs in a climbing accident 30 years ago; now, as the head of the MIT Media Lab’s Biomechatronics group, he shows his incredible technology in a talk that’s both technical and deeply personal — with the help of ballroom dancer Adrianne Haslet-Davis, who lost her left leg in the 2013 Boston Marathon bombing, and performs again for the first time on the TED stage.

Casimir Effect And Black Holes

Casimir Effect And Black Holes

[msa-ads data-ad-client=”ca-pub-6965588547261395″ data-ad-slot=”7732882042″]

Professor Mike Merrifield from the University of Nottingham explaining Casimir Effect, Black Holes and Hawking Radiation.

Perceiving is Believing

Perceiving is Believing

[msa-ads data-ad-client=”ca-pub-6965588547261395″ data-ad-slot=”7732882042″]

So what does perception even mean? What’s the difference between seeing something and making sense of it?

In today’s episode of Crash Course Psychology, Hank gives us some insight into the differences between sensing and perceiving.