Ball machine at the DC Science convention

23 views · Published 21 May 2016 · 2:36 · Indexed 20 October 2026

Channel: Mr. John Munyeul Sulu (Joong Yeul) · 2016 · Travel & Events

Watch on YouTube

One of the experiments at the science event at the Washington Convention center.  Recorded on April 16, 2016.

More from this channel