One of the most powerful online tools at your disposal is the sprawling Google Earth project, which allows you to use satellite imagery to view a three-dimensional representation of the planet, ...

Tetris can be played in unlikely places like PDFs and Excel spreadsheets. MIT successfully displayed Tetris on a building using window lights. The HP 54602B Oscilloscope has a Tetris Easter egg ...

Michael Breus is a sleep doctor who has treated a variety of disorders. He reveals some of the weirdest things people do in their sleep without even realizing it. Follow BI Video: On Twitter More ...

Here are some of the weird things people do when they are dating or even married: Finishing each other's sentences: This may or may not be weird, but couples do it most of the time. Being in a ...

Some, however, are just plain weird ... to do with the chair. This is Bodyfriend, a massage chair with arms and legs that can move as if it were a robot. That, supposedly, helps people stretch ...

Before coins and paper bills, people used all kinds of strange things to trade for goods and services. Over time, humans have used some very unusual objects as currency—things that may surprise you.