RT @PopMech: The world’s tallest building, Dubai’s Burj Khalifa, closed due to a pileup of 57 elevators, many stacked in the same shaft....

[gallery] infoneer-pulse: Wi-Fi Turns Arizona Bus Ride Into a Rolling Study Hall Students endure hundreds of hours on yellow buses each year getting to and from school in this desert exurb of Tucson, and stir-crazy teenagers break the monotony by teasing, texting, flirting, shouting, climbing (over seats) and...