"Pakistan is apparently ready to move ahead of the USA in the deployment of a mobile wireless network." From the article: "The deployment is a milestone in the spread of WiMax, a superfast wireless technology that has a range of up to 30 miles and can deliver broadband at a theoretical maximum of 75 megabits per second. The 802.16-2004 standard, which is used in fixed WiMax networks, is being skipped in favor of a large-scale introduction of 802.16e, which was only recently agreed upon by the WiMax Forum. 'We made the decision 18 months ago to jump over (802.16-2004) and go straight to 802.16e,' Paul Sergeant, Motorola's marketing director for Motowi4, told ZDNet UK on Tuesday. 'We've been working on it for a while, which is how we're able to ship so soon after agreement.'"
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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