Back to photostream

daria.boteva

Physics. Pressure formula. We write with chalk on a board.

www.shutterstock.com/video/clip-30521536-stock-footage-ph...

319 views
0 faves
0 comments
Uploaded on September 10, 2017

Physics. Pressure formula. We write with chalk on a board.

www.shutterstock.com/video/clip-30521536-stock-footage-ph...

319 views
0 faves
0 comments
Uploaded on September 10, 2017
All rights reserved