Page 592 - (DK) The Ultimate Visual Dictionary 2nd Ed.
P. 592

THE MODERN WORLD
       Wearable technology                                                                        Customizable


                                                                                                  watch face
       WEARABLE TECHNOLOGY DEVICES are clothing or accessories, such as
       jewelery or glasses, that have connected computer devices incorporated
       in their design. Such devices contain many smart sensors and are connected   On/off
                                                                           button
       wirelessly—either via the internet or Bluetooth—to another device, such
       as a smartphone, that tracks the data the wearable device collects. Wearable
       technology has been around since the late 1970s, with devices such as the
       calculator watch and digital hearing aid. However, progress in wearable
       technology advanced rapidly in the early twenty-first century, when sensors
       and chip sets became much cheaper and more readily available. Wearable
       technology can have many different functions. Some devices are used to
       track medical data, such as measuring heart rate, breathing patterns,    Interchangeable
                                                                          band
       and temperature. Others are used to monitor
       fitness, with many using GPS (below) to track                                    PEBBLE
       how many steps a user has walked, or how
                                                        Battery   Frame accommodates
       many miles they have run, for example.                       prescription lenses
       Some wearable technology is designed to
       merge the digital world with the physical
       world—for example, Google Glass, which
       projects digital information, such as maps
       and text notifications, onto the glasses’
       screen without obstructing the view
       of the real world.                    Speakers
                                                   CPU
        HOW GPS WORKS
                                                        Camera
                                         Satellite 2                         Prism
        Satellite 1
                                                                                GOOGLE GLASS

                                              The receiver takes a
                                              reading of  its distance
                                              from two satellites. The
                                              receiver is located along
                                              the plane where the two
                                              resultant spheres meet

                                               Earth

        Satellite 3
                              A signal from a third
                              satellite defines two
                              positions on that plane.
                              The position on the
                              Earth’s surface is read
                              as the correct location
                                                  Optical
                                                 touchpad
                                                                              RECON JET
                                                      HD camera
                                                                                           Polarized   Battery
                                                                                           lens

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