Scrolling through page after page of text on a computer screen is one of those tedious activities that has ensured the paperless office remains a dream. One of the reasons why people prefer to print documents out is because repeated pointing and clicking with a mouse, or turning a finger wheel, can cause repetitive strain injury, particularly as most people always use the same hand to operate a mouse.
Now, Kenneth Hinckley at Microsoft in Redmond, Washington (US patent application 2004/141009) suggests placing a pressure-sensitive strip down each side of a PC keyboard. Moving a finger slowly up or down…
