A biomechanical engineer explains the science behind the design of wheelchairs in a variety of different Paralympic sports. [5:16]

Dr. Tony Knap, of BIOS in Bermuda explains how climate change is causing ocean temperatures to rise, and what impacts it may bring around the world. [6:05]

Scientists predict the rise in sea level will only increase, and they're studying changes in the ocean and land to better understand how and why the water is rising. [6:20]

A company called Veristride demonstrates their assistive walking technology at the 2015 International Consumer Electronics Show. They have developed insoles that incorporate data tools for analyzing a person's movements and walking gait....

A look at potential problems that could develop during a cycle of strong sunspot activity. [57]

A demonstration of how to write a reversible secret message using goldenrod colored paper, a candle, and ammonia-based window cleaner. [1:58]