Getting in Touch with Touch

By simulating the sense of touch, engineers hope to improve robots, surgery, and even video games.

By Emily Sohn, 00:00 AM April 3, 2007

Next time you open a door and close it behind you, try this quick test. While the door is open, put your hand on the doorknob. Close your eyes. Now, gently push the door shut.

Were you able to do it? If so, good job!

Our sense of touch helps us close a door without slamming it.

Our sense of touch helps us close a door without slamming it.

iStockphoto

You might have found this test easy, but it actually posed quite a few challenges. Without looking, you had to keep track of how far the door was open. You had to know how hard to push to close it with...

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