Play Live Radio
Next Up:
0:00
0:00
0:00 0:00
Available On Air Stations

A Trick For Bending The Laws Of Physics

You see it on T.V. all the time: cops interrogating a suspect in a cramped room while prosecutors watch from the other side of a one-way mirror.

The prosecutors can see in, but the suspects can’t see out.

Those mirrors are specially coated and lighting is used to create the one-way illusion.

Now engineers at the University of Texas in Austin have figured out how to create a one-way illusion with sound.

From the Here & Now Contributors Network, Matt Largey of KUT in Austin explains.

Reporter

Copyright 2020 NPR. To see more, visit https://www.npr.org.