The following JavaScript experiments demonstrates the amazing capabilities of the modern browsers such as Chrome and Safari. In this post I will showcase to you an array of experiments that will surely blows your mind off.
1. Twitch

TWITCH is a series of minimal games within small Chrome windows. How fast can you solve them all? Each game only responds to clicking; mouse position and keyboard are ignored.
Can you stay on the perilous belt? Can you accurately aim the booming cannon? Can you navigate through the electric pyramids? Can you solve the eerie labyrinth?
2. Browser Ball

Browser Ball attempts, with only moderate success, to allow the configuration of a seemingly endless array of continuous spaces using multiple overlapping browser windows. Within this multivariate space, users are invited to toss a beach ball both hither and yon.
3. Ball Pool

Start by shaking the browser, then create new balls (click on empty space), move some others (drag) and reset the screen (double click).
4. Google Gravity

“Everything that goes up must come down. But there comes a time when not everything that’s down can come up.”
This applies in the Google main page. Play with the elements and try to search on anything. It’s fun.
5. Depth of Field

300 balls form a plane, a cube, a little universe, a sphere and then disappear. Amazing!
6. Wavy Scrollbars

Touch scrollbar thumb to make waves. Based on verletphysics library by toxi.
7. Sketchpad

Sketchpad is a drawing/painting application developed in pure HTML and Javascript. It includes a number of Drawing Tools — including: Text, Shape, Spirograph, Brush, Calligraphy, Pencil, Paint-Bucket, and Stamp. It also includes a few generic Drawing Utilities — including: Marquee, Crop, Eraser, and a HSL/RGBA Color-Picker.
8. JS Wars

JS WARS is a classic shoot em up written to demonstrate the power of modern web browsers.
9. Vectomatic

Vectomatic is a vector graphics editor: you create drawings by freely combining shapes, curves and segments and modifying their geometric and visual properties. At this stage the project is just a demo to explore the feasibility of a full-featured online graphics editor a la Google Docs.
10. JS Fireworks

Write a message, then launch fireworks over London to show your message in the sky. A shortened link to your fireworks message is provided, to post to Twitter, Facebook or other.
{VIA INSICDesigns}