. >> adam ben david says he came up with the idea for a desk gym sitting in while he was in college. >> we got a few dumbbellsd thosd had those around the chair and got an exercise band and it started to snowball. >> it wraps around a pulley system built into the chair. the user can adjust the tension by raising or lowering the street. >> up to hundred pounds and we have thinner bands, as well. you can dial it up. >> but for desk bound professionals, it offers something more valuable, convenience. >> if i had to get up and do a quick set of pushups or sit-ups and i'm not going to get away from the screen in front of me. >>> a san francisco company has unveiled a way for mobile devices to track and identify 3-d objects. richard hart describes it. >> first we use our phones to scan bar codes such as the product name. then we went to these codes, more two dimensional code that provided pictures and links on ternet. now, we can get information from pointing the camera at picture. >> that is the scan bottom. >> button. >> add 3-d information. that is called augmented reality. it's the spe