MathAlive!: If you go

Oscar Williams/MathAlive! - Visitors operate a viewing camera on a robotic arm that extends from a 3-D version of the International Space Station. Here they are exploring the coordinate system as a way to locate objects in two-dimensional space.

What: MathAlive!

Where: The Ripley Center, 1100 Jefferson Dr. SW, right next to the Smithsonian Castle. Go down the stairs to the International Gallery.

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When: Every day 10 a.m.- 5:30 p.m. until June 3.

How much? Free.

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