You can scroll down on a web page by tapping the space bar

browsers

#1

Bored of using scroll wheels and scroll bars? Try scrolling this webpage by tapping the space bar now.

The space bar can also be used for play and pause functions. Tap the space bar to play or pause videos and slideshows.

If you are watching a Youtube video in full-screen mode, tap your space bar anytime to pause the video and tap again to play.