Sawing Sound (video study grid)

Play any or all of these videos to see & hear them together (click the green arrow below to minimize the left navigation and make the grid larger). 

Use caution with the sound, as the more videos played the louder it will be.

This works best on desktop/laptop browsers (mobile devices tend not to let multiple videos play at once), and the larger the grid, the more likely volume controls will be visible for all the videos.