A dancer from the Brooklyn Ballet leaps into the air. With the assistance of motion sensor activated light-up tutus, the Brooklyn Ballet performed the Waltz of the Snowflakes. Lenny Martinez—The Tech May. 9, 2016 Facebook Twitter Reddit Print A dancer from the Brooklyn Ballet leaps into the air. With the assistance of motion sensor activated light-up tutus, the Brooklyn Ballet performed the Waltz of the Snowflakes. Lenny Martinez—The Tech