Even Google itself embraced the trend. For a time, "Google Gravity" became an Easter egg—if you searched for it, the results page would slowly fall apart (though that feature has since been removed).

2009 / 11 / 04. Checkboxes Ball 2009 / 11 / 04. Google Sphere 2009 / 05 / 28. Google Gravity 2009 / 03 / 18. Ball Pool 2009 / 02 / Ball Pool - Mr.doob

Unfortunately, the original experiment was designed for desktop browsers with mouse input. On a smartphone, you may see it working, but dragging physics objects with touch is imprecise. Some mobile browsers may fail to load the Box2D engine. For the best experience, use a laptop or desktop PC.

The terms you provided refer to two separate, classic web experiments created by the developer Ricardo Cabello , popularly known as 1. Google Gravity

"It’s art," Elias corrected. "It reminds us that the internet isn't just flat text and boxes. It has depth. It has weight."

This variation is an interactive game where users interact with colorful balls of varying sizes and shapes.

⭐⭐⭐⭐½ (4.5/5) — loses half a star because it’s short-lived novelty.

To manipulate the Document Object Model (DOM) in real-time.

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