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Curiosity Weekly

Could You Adapt to Having an Extra Thumb?

Curiosity Weekly

Warner Bros. Discovery

Science

4.6963 Ratings

🗓️ 8 July 2021

⏱️ 13 minutes

🧾️ Download transcript

Summary

Learn about a robotic “third thumb”; how measuring time increases entropy; and how to distinguish friends from foes.

People's brains adapted to having a robotic "third thumb" by Steffie Drucker

Measuring time increases the entropy in the universe by Briana Brownell

To Scope Someone Out, See How They Judge Others by Anna Todd

Follow Curiosity Daily on your favorite podcast app to learn something new every day with Cody Gough and Ashley Hamer. Still curious? Get exclusive science shows, nature documentaries, and more real-life entertainment on discovery+! Go to https://discoveryplus.com/curiosity to start your 7-day free trial. discovery+ is currently only available for US subscribers.

 

Find episode transcript here: https://curiosity-daily-4e53644e.simplecast.com/episodes/could-you-adapt-to-having-an-extra-thumb


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Transcript

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0:00.0

Hi, you're about to get smarter in just a few minutes with Curiosity Daily from Curiosity.com.

0:06.0

I'm Cody Gough.

0:07.0

And I'm Ashley Hamer.

0:08.0

Today you learn about how quickly people's brains adapted to having a robotic third thumb, how measuring time increases the entropy

0:16.1

in the universe, and how to scope someone out by seeing how they judge others.

0:21.3

Let's satisfy some curiosity.

0:23.0

Usually people use prosthetics to replace a body part that they've lost.

0:29.2

But what if you could use prosthetics to gain extra abilities. Would that even work? Well according to a team

0:36.0

of researchers at University College London, the answer is yes. People trained to use a

0:42.0

prosthetic third thumb not only learned to use it, but could do more than they could before.

0:49.0

This was a venture where Art met science.

0:52.0

Designer Danny Clode designed the robotic thumb for her graduate project,

0:57.0

which aimed to reframe how we think about prosthetics

1:01.0

as an extension rather than a replacement. A group of

1:05.0

neuroscientists at University College London happens to be investigating how the

1:09.6

brain adapts to bodily augmentation, so they teamed up.

1:14.0

Here's how the thumb works.

1:16.0

It's 3D printed and designed to be worn on the opposite side of the hand from the real thumb.

1:22.0

You control it by pressing on wireless

1:24.8

pressure sensors under your big toes, kind of like the way you would press a

1:28.8

pedal on a sewing machine. Twenty right-handed people put on the thumb and learn to use it over five days.

1:36.0

In their practice sessions, they performed tasks that required using their natural hand together with the third thumb, stuff like picking up several wine

...

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