"SNL50: The Homecoming Concert" romped at Radio City Music Hall Friday. Inside the musical bash featuring Cher, Lady Gaga, ...

I transformed circular bokeh into heart shapes using a homemade aperture disc that I made using sticky tape and black paper ...

Celebrate President's Day the right way -- by saving a bunch of cash on the tech recommended by Engadget reviewers.

My Replika avatar was supposed to help me understand why people fell for virtual companions. It taught me so much more.