Clark Planetarium's Gravity Floor

The exhibit that started it all

Clark Planetarium in Salt Lake City, Utah is home to one of the most engaging interactive science exhibits I've ever experienced: the Gravity Floor.

What is the Gravity Floor?

The Gravity Floor is a large interactive display where visitors become gravity wells. By stepping on the pressure-sensitive floor, you create gravitational attraction points that pull in virtual stars and particles. The more firmly you press, the stronger your gravity well becomes.

Kids (and adults) can compete to see who can collect the most stars, create orbital patterns, or work together to form complex gravitational systems. It's physics made tangible and fun.

Part of the Interactive Universe

The Gravity Floor is part of Clark Planetarium's broader "Interactive Universe" exhibits, developed in collaboration with Ideum. The planetarium also features:

Visiting Clark Planetarium

Clark Planetarium is located at The Gateway in downtown Salt Lake City. The best part? Admission to all interactive exhibits is free! You only pay for the dome theater shows and IMAX films.

Hours: Open daily from 10 AM to 7 PM
Address: 110 S 400 W, Salt Lake City, UT 84101

Whether you're visiting with kids, on a date, or just curious about space, I highly recommend stopping by. The Gravity Floor alone is worth the trip.

Bringing Gravity Floor Home

After watching visitors have so much fun at the Gravity Floor, I wanted to recreate that experience at home. The result is Gravity Hands - instead of stepping on a floor, you hold up your hands to a webcam, and machine learning tracks them to create gravity wells.

It's not quite the same as the full-body experience of the real exhibit, but it captures the core magic: the joy of controlling gravity and watching particles dance around your influence.

"The Gravity Floor turns abstract physics into something you can feel with your whole body. Gravity Hands tries to capture that same sense of wonder in your browser."

Can't Visit Salt Lake City?

Experience the magic of gravity wells from anywhere with a webcam.

Try Gravity Hands

Learn More

For more information about Clark Planetarium and their exhibits, visit their official website.