Slashdot is powered by your submissions, so send in your scoop

 



Forgot your password?
typodupeerror
×
Image

Halloween Pumpkin Carving With CNC Robotics Screenshot-sm 73

An anonymous reader writes "A guy at Lumenlab has created a way to carve his face on a pumpkin using his DIY CNC gantry robot. I think this demonstration says a lot about the future ubiquity of the technology. I'm really looking forward to the day that I have one of these machines in my garage."
Image

Slashdot's Disagree Mail Screenshot-sm 202

Slashdot has one of the best discussion systems there is. It's grown and adapted over the years to meet various challenges and suit the needs of our users. A lot of time and effort has gone into it and we are always open to user input to help make it better. Some of our best ideas start as user suggestions and we appreciate the feedback. Of course they can't all be gems and sometimes the suggestions we get are unworkable or just bizarre. Here are a few of my favorite unhelpful, helpful suggestions.
United States

Report is Critical of US For Dumping E-Waste Overseas 152

coondoggie writes "In what may be the least astonishing news of the day, some major US companies who say they are environmentally recycling electronic waste — aren't. Rather more startling — they are dumping everything from cell phones and old computers to televisions in countries such as China and India where disposal practices are unsafe to people and dangerous to the environment. Controlling the exportation of all of the e-waste plops on the doorstep of the US Environmental Protection Agency which is doing a woeful job, according to a scathing 67-page report issued by the Government Accountability Office today."
Image

City Uses DNA To Sniff Out Dog Poop Offenders Screenshot-sm 252

An Israeli city is using DNA analysis of dog droppings to reward pet owners who clean up after their pets and punish those who don't. A six-month trial program launched this week, in the city of Petah Tikva, to tackle the dog mess problem in a high tech way. The program asks dog owners to take their pets to a veterinarian, who then swabs its mouth and collects DNA. The city will use the DNA database it is building to match droppings to a dog and identify its owner. Owners who scoop up their dogs' droppings and place them in specially marked bins will be eligible for rewards of pet food coupons and dog toys. Those who leave the poo on the street face fines. I wonder what sin you had to commit in a previous life to find yourself the official dog poop examiner of Petah Tikva, Israel.
Earth

1,500-Ship Fleet Proposed To Fight Climate Change 692

Roland Piquepaille writes "According to UK and US researchers, it should be possible to fight the global warming effects associated with an increase of dioxide levels by using autonomous cloud-seeding ships to spray salt water into the air. This project would require the deployment of a worldwide fleet of 1,500 unmanned ships to cool the Earth even if the level of carbon dioxide doubled. These 300-tonne ships 'would be powered by the wind, but would not use conventional sails. Instead they would be fitted with a number of 20 m-high, 2.5 m-diameter cylinders known as Flettner rotors. The researchers estimate that such ships would cost between £1m and £2m each. This translates to a US$2.65 to 5.3 billion total cost for the ships only."
Image

Dolphin Inspired Mini-sub Screenshot-sm 181

What do you get the millionaire in your life who has everything? How about the Seabreacher mini-sub. Described as a dolphin-inspired cross between a jet ski and a submarine, the Seabreacher has a top speed of 45mph above the waves and 20mph below them. The two-man £30,000 craft is 15' long and its design makes it self-righting. Strangely, this doesn't come with a laser package.
Image

Slashdot's Disagree Mail Screenshot-sm 264

In this week's Disagree Mail, I try to show the range of messages I get. It's not all angry or insane, sometimes it's sent to us for no apparent reason. We start off a little mad, slip into a whole bunch of crazy and finish with someone who has a complaint about racism at his favorite restaurant. Read below to get started.
Image

Teens Arrested For Motorized Office Chair Screenshot-sm 338

German police have confiscated the world's fastest office chair and arrested its 17-year-old inventors. The duo added a lawnmower engine, brakes and a metal frame to the office chair and were reported to be driving it all over the streets of Gross-Zimmern. Police did not comment on the chair's handling or acceleration but I look forward to it being profiled on Top Gear.
Supercomputing

Simple Mod Turns Diodes Into Photon Counters 118

KentuckyFC writes "The standard way to detect single photons is to use an avalanche photodiode in which a single photon can trigger an avalanche of current. These devices have an important drawback, however. They cannot distinguish the arrival of a single photon from the simultaneous arrival of two or more. But a team of physicists in the UK has found a simple mod that turns avalanche photodiodes into photon counters. They say that in the first instants after the avalanche forms, its current is proportional to the number of photons that have struck. All you have to do is measure it at this early stage. That's like turning a Fiat 500 into a Ferrari. Photon counting is one of the enabling technologies behind optical quantum computing. A number of schemes are known in which it is necessary to count the arrival of 0, 1 or 2 photons at specific detectors (abstract). With such a cheap detector now available (as well as decent photon guns), we could see dramatic progress in this field in the coming months."

Firefox Breaks 8 Million, Gets Into Guinness 199

Punkster812 writes "Mozilla has gotten the results back from the Guinness World Records and the official number that will be set as the record is 8,002,530 downloads. The day started out a little rough for them, with server troubles during the initial launch, but once they got everything going, they were able to transfer 62,419,734 MB in 24 hours. You can get more information, including a breakdown of how many downloads each country did from around the world, by visiting spreadfirefox.com. Congratulations, Mozilla, on the new record."

Comment Re:Its sad (Score 1) 64

Using stuff that's cheap because it's left over doesn't meet the goals.
It certainly could. This problem seems easily solved the same way we do in the engineering competition I participate in... use whatever you can get your hands on, but it needs to be available for purchase from somewhere, and you have to apply the full retail price against your budget limit. Then you still create a product that is reproducible within the design constraints, but you didn't have to spend 100% on your prototype.
Space

Stephen Hawking Thinks Aliens Likely 579

OMNIpotusCOM writes "Noted astrophysicist Stephen Hawking thinks that alien life is likely, albeit primitive, according to a lecture delivered at George Washington University in honor of NASA's 50th anniversary. It begs the question of if we need to consider a Prime Directive before exploring or sending signals too far into the depths of space."
It's funny.  Laugh.

Submission + - Playing Bad Video Games for Charity (desertbus.org)

katicli writes: Desert Bus, the adventure of driving from Tuscan Arizona to Las Vegas real time by Penn and Teller, was designed to be absolutely horrible and painfully realistic. There are no other cars, no scenery aside from the occasional cactus, and no other passengers. Only an occasional slight list of the bus to the right breaks the monotony of the trip (which is approximately 8 hours each way). If the bus is crashed it will be towed back to the city of origin (real time). If the player completes the trip they are awarded a single point and invited to drive back. There is no pause button. Needless to say it exceeded its design goal of complete boringness and was never released. Now the game is back, in its full Sega CD glory, for a second (first?) life as a charity event. Comedy group Loading Ready Run is playing the game to raise money for the Child's Play Charity (founded by Penny Arcade). Four members of the comedy group are playing the game non-stop for a sentence that increases by the amount of money that is donated (currently 104 hours and counting). You can tune into the wonderful adventures of this virtual road trip by a live feed of the video game, a live IRC chat room with the drivers and fans, or a live video of the group playing the game. Residents of Victoria BC invited to stop by for the event and are encouraged to bring snacks. Donations are accepted on the DesertBus.org website.
Security

Submission + - Hackers Cause Generator to Self-Destruct

An anonymous reader writes: It has been revealed that in a U.S. Department of Homeland Security exercise codenamed "Aurora" conducted in March of this year, researchers were able to cause a power generator to self destruct remotely via a "cyber attack" which changed the operating cycle of the generator. "Government sources said changes are being made to both computer software and physical hardware to protect power generating equipment."

Full Story

Slashdot Top Deals

Understanding is always the understanding of a smaller problem in relation to a bigger problem. -- P.D. Ouspensky

Working...