Gizmodo 
Enter your username and password.
Tip your editors:
Editorial Director:
Brian Lam | | Twitter
Editor:
Jason Chen
| AIM | Twitter
Features Editor:
Wilson Rothman
| Twitter
Senior Contributing Editors:
Jesus Diaz
| AIM | Twitter
Mark Wilson, Reviews
| AIM | Twitter
Contributing Editors:
Matt Buchanan
| AIM | Twitter
Adam Frucci
| Twitter
Sean Fallon
| Twitter
Jack Loftus
| Twitter
John Herrman
| Twitter
Dan Nosowitz
Chris Mascari
Kat Hannaford
| Twitter
Rosa Golijan
| Twitter
Chris Jacob
Columnist:
Brendan I. Koerner
Interns:
Don Nguyen
Kyle VanHemert
Comment Account Questions:
Original material is licensed under a Creative Commons License permitting non-commercial sharing with attribution.
Jumplay: Double Dutch for the New Millennium
We have all seen those gadgets that display the time or a message using a rapidly oscillating wand fixed with tiny LEDs. However, only designer Jacky Wu was clever enough to apply this technology to a jump rope. After all, it makes perfect sense—as you jump, the device records each revolution then displays that figure (along with time and calories burned) using LEDs embedded on the rope. More »Ropeless Jump-Rope, More Useful Than You Think