Smithsonian Perpetual Motion Machine category_T-shirts and has focused on exploring

and has focused on exploring the Hopi view of the universe throughout his diverse career

the rainbow maker from Kikkerland uses the sun to fill a room with rainbows

there is a star in the Northern Hemisphere that seems to be fixed -- Polaris

Because the Earth’s axis changes gradually over time

Every 12” Little Thinker doll is distinctively dressed and wields a biographical tag with essential dates

Smithsonian Perpetual Motion Machine category_T-shirts and has focused on exploringExplore the fascinating science of motion and energy with the Smithsonian Perpetual Motion Machine. This interactive kinetic display uses steel balls and balanced motion to show how momentum and force are transferredcreating a continuous chain reaction effect. A mesmerizing STEM learning tool and desk display for ages 8+. Bring physics to life with the Smithsonian Perpetual Motion Machine, an engaging kinetic science model that visually demonstrates