morphovar forwards a writeup in Low-tech Magazine recounting an almost-forgotten predecessor to email and packet-switched messaging: the optical telegraph. The article maps out some of the European networks but provides no details of those built in North America in the early 1800s. Man-in-the-middle attacks were dead easy. "More than 200 years ago it was already possible to send messages throughout Europe and America at the speed of an airplane — wireless and without need for electricity. The optical telegraph network consisted of a chain of towers ... placed 5 to 20 kilometers apart from each other. Every tower had a telegrapher, looking through a telescope at the previous tower in the chain. If the semaphore on that tower was put into a certain position, the telegrapher copied that symbol on his own tower. A message could be transmitted from Amsterdam to Venice in one hour's time. A few years before, a messenger on a horse would have needed at least a month's time to do the same."

UpnAtom writes "People who refuse to give up their bank records, tax records & details of any benefits they've claimed, and the records of their car movements for the last year, or refuse to submit to an interrogation on whether they are the same person that this mountain of data belongs to — will be denied passports from March 26th. The Blair government has already admitted that this and other data will be cross-linked so that the Home Office and other officials can spy on the everyday lives of innocent Britons. Britons were already the most spied upon nation in Western Europe — more so even than Sweden. Data-mining through this unprecedented level of mass-surveillance allows any future British government to leapfrog even countries like China and North Korea."

s31523 writes "Lawrence Livermore National Laboratory in California has announced they have working in the lab a Solid State Heat Capacity Laser that averages 67 kW. It is being developed for the military. The chief scientist Dr. Yamamoto is quoted: 'I know of no other solid state laser that has achieved 67 kW of average output power.' Although many lasers have peaked at higher capacities, getting the average sustained power to remain high is the tricky part. The article says that hitting the 100-kW level, at which point it would become interesting as a battlefield weapon, could be less than a year away."

42istheanswer writes "Open source is so much more than Linux these days. A lot is happening beyond the popular operating system. Open source models are thriving in CRM (SugarCRM), messaging (Scalix), and systems management (Zenoss). Datamation has identified ten leading commercial open-source innovators and the projects they are working on in their article, Ten Leading Open Source Innovators."

An anonymous reader writes "The Times of London has an article on how Garry Kasparov, former world chess champion, is using his fame and intellect in an attempt to defeat President Putin at the presidential elections in March 2008. Kasparov believes that Putin is virtually a dictator who is dismantling democracy and returning Russia to an authoritarian regime. Some high-profile Putin critics, such as Alexander Litvinenko, have been the victims of unsolved murders, and Kasparov is aware of the dangers: 'I can calculate the possibilities as a chess player and I have to be honest and say that our chances are not high. But I take this as a moral duty, and when you do something out of moral duty, then who cares?'" From the article: "[Kasparov] will not be a contender for the presidency but [his political umbrella group] The Other Russia aims to create the conditions under which an anti-Putin candidate can win. It appears, however, to be an uneven contest against a man who enjoys 80 per cent approval ratings. Most Russians want Mr. Putin to overturn a constitutional bar on a third term in office. Many will back whomever Mr. Putin endorses to succeed him."

doug141 writes "Liberal and progressive Christian groups say a new computer game in which players must either convert or kill non-Christians is the wrong gift to give this holiday season and that Wal-Mart, a major video game retailer, should yank it off its shelves.Players can choose to join the Antichrist's team, but of course they can never win on [his] side. The enemy team includes fictional rock stars and folks with Muslim-sounding names, while the righteous include gospel singers, missionaries, healers and medics."

Iphtashu Fitz writes "Would 15 seconds be enough warning time to prepare for an earthquake? It certainly wouldn't be long enough to evacuate from where you live, but it may be just long enough to get out of a building or brace yourself in a doorframe or under a solid desk. Italian scientists may have discovered a way to measure the initial shockwave of an earthquake two seconds after it starts, and from it predict the extent of the destructive secondary wave that will follow. It typically takes twenty seconds for the secondary wave to spread 40 miles, so sensors that can transmit warnings at the speed of light may provide just enough warning before a major quake for people to brace themselves. Even more importantly, such a warning could allow for utilities like gas companies to close safety valves, preventing potential fires or explosions in the aftermath of the quake."

Rigor Morty asks: "I am an older man (44), an avid fan of video games, and I am faced with a problem; my hands are becoming arthritic as I get older. I fear I will soon have to completely give up the console games I have loved over the years. To that end, let me ask the Slashdot Nation — if you were going to give it up, what games would you insist on playing before you had to quit? I'm willing to make some effort to do this, and spend some cash; I will buy the new consoles if I need to, or try to find obscure titles."

Mantrid42 writes "Schools in the UK are getting rid of their WiFi network, citing health concerns from parents and teachers. The wireless emanations, parents fear, may be the root cause of a host of problems from simple fatigue to the possibility of cancer. A few scientists think younger humans may be more vulnerable to the transmissions, because of thinner skulls. From the article: "Vivienne Baron, who is bringing up Sebastian, her ten-year-old grandson, said: 'I did not want Sebastian exposed to a wireless computer network at school. No real evidence has been produced to prove that this new technology is safe in the long term. Until it is, I think we should take a precautionary approach and use cabled systems.'"

Tom writes "Everyday objects can produce interesting effects when you stick them in a standard microwave. Grapes spark, matches create superheated plasma fireballs, mini lightning-bolts arc between sheets of aluminum foil, and soap both splits open and puffs up, creating a somewhat vulgar spurt of bubbly excrement that has to be seen to be fully appreciated. However, as cool as microwave experimentation can be, balls of plasma and the like are bad for both your eyes and your microwave, so it's probably best not to try these things at home. update This site apparently is behind a really nasty popup that I missed (yay Firefox) the first time through. You've been warned... here it is but given the overall rottenness of the pop-up, I guess I wouldn't bother. Some folks know no shame. My apologies to the readers.