We were about to write this off as a harmless gimmick, and a great gift to slow down a couple FPS rivals of ours, but after staring mesmerized at the sheer craziness of it all, we're starting to think these Combimouse peeps are on to something. Their concept is quite simple: reduce the repetitive and arduous task of moving your hand from keyboard to mouse and back again a few thousand times a day. They accomplish that by splitting the keyboard and making the right half into a full fledged mouse. Your merely switch up your grip and the mouse function automatically springs into action. You might look a bit dorky in the act, and it surely won't work for everybody, but it seems to us that a spreadsheet pusher could quickly get used to the setup and learn to rock it. The creators of the Combimouse have recently completed their final prototype and are on the lookout for a manufacturer. We'll keep you posted.
[engadget]
The short answer is "no", but it is a qualified "no" because there are odd ways of interpreting the question which could justify the answer "yes". Light is composed of photons so we could ask if the photon has mass. The answer is then definitely "no": The photon is a massless particle. According to theory it has energy and momentum but no mass and this is confirmed by experiment to within strict limits. Even before it was known that light is composed of photons it was known that light carries momentum and will exert a pressure on a surface. This is not evidence that it has mass since momentum can exist without mass. [ For details see the Physics FAQ article What is the mass of the photon? ]. Sometimes people like to say that the photon does have mass because a photon has energy E = hf where h is Planck's constant and f is the frequency of the photon. Energy, they say, is equivalent to mass according to Einstein's famous formula E = m...
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