The buildings are designed to resemble a giant mobius strip - a continuous loop with only one side.

BBC: Landscape House

The gravity-based system responded as it was designed to, circulating water and steam in a continuous loop to keep the scale-model reactor at a safe temperature automatically.

CNN: Today/Tomorrow - Helping nuclear plants keep their cool

For those extended shoots, a new loop recording mode allows continuous, non-stop recording between the two cards -- no more swapping out your micro-SD on the move.

ENGADGET

In my battery tests, where I turn off all power-saving features, crank the screen brightness up all the way, leave the Wi-Fi on, and play a continuous loop of music, they fell well short of that.

WSJ: Ultrabooks Bring Light and Speedy to Windows

Users whose adventures span hours, and even days, will especially appreciate the loop recording mode that allows for continuous, non-stop recording between two memory cards, eliminating the hassle of manually restarting recording and swapping out memory cards.

ENGADGET: iON reveals Adventure and Air Pro 2 sports cameras, we go hands on

In my tough laptop test, where I turn off power-savings software, crank up the screen to 100%, leave the Wi-Fi on to collect email, and play a continuous loop of music, the XPS 12 lasted just 3 hours and 31 minutes.

WSJ: Review of Dell XPS 12: Dell Laptop Does Flips to Try to Be a Thick Tablet