Joe Elliott

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  • How Things Work: Credit Cards


    SciTech | November 15, 2004
  • How Things Work: Magnetic Storage Devices

    In this so-called "Information Age," more and more of the data on which our civilization relies is stored electronically rather than on paper. The majority of electronic data-storage mechanisms are magnetic in nature. Compact discs and related technologies (such as DVDs) are the notable exception, as they use optical means of recording data. Hard disks, video tapes, audio tapes, most removable med...

    SciTech | March 22, 2004
  • HOW THINGS WORK: Trackpads

    Since I explained traditional mice, optical mice, and trackballs in this column last year, a number of laptops have felt left out of the fun because I didn?t explain their trackpad pointing devices. I would have done it sooner, but it?s not an easy mechanism to understand, and I fear that readers without a strong background in physics will have no idea what I?m trying to say, and those of you that...

    SciTech | March 1, 2004