Are robot vacuums worth it or more hassle than helpful? We say the first one — but Black Friday is a great time to try one for yourself. Credit: Ian Moore / Mashable Deal pricing and ...

A bionic robot dog has been developed in China which has the ability to outrun human athletes. The four-legged machine at 38-kg and 0.63-meters tall named "Black Panther 2.0" can even sprint 100 ...