The producer of the canned pork product Spam has lost a bid to claim the word as a trademark for unsolicited e-mails. EU trademark officials rejected Hormel Foods Corp.'s appeal, dealing the company another setback in its struggle to prevent software companies from using the word 'spam' in their products, a practice it argued was diluting its brand name. The European Office of Trade Marks and Designs, noting that the vast majority of the hits yielded by a Google search for the word made no reference to the food, said that 'the most evident meaning of the term SPAM for the consumers ... will certainly be unsolicited, usually commercial e-mail, rather than a designation for canned spicy ham.
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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