Catch up on stories from the past week (and beyond) at the Slashdot story archive

 


Forgot your password?
Close
typodupeerror
×
United States

Rube Goldberg and the Electrification of America 207

Posted by samzenpus from the start-of-something-great dept.
Hugh Pickens writes "Alexis Madrigal has an interesting essay in the Atlantic about the popular response of people in the 19th century to the development of the electric power industry in America. Before electricity, basically every factory had to run a bit like a Rube Goldberg machine, transmitting power from a water wheel or a steam engine to the machines of a manufactory but with the development of electric turbines and motors the public believed engineers were tapping mysterious, invisible forces with almost supernatural powers for mischief. 'Think about it,' writes Madrigal. 'You've got a wire and you've got a magnet. Switch on the current — which you can't see and have no intuitive way to know exists — and suddenly the wire begins to rotate around the magnet. You can reverse the process, too. Rotate the magnet around the wire and it generates a current that can be turned into light, heat, or power.' And that brings us back to Rube Goldberg, a cartoonist who was was shockingly popular in his heyday and whose popularity closely parallels the rise of electrification in America. 'I think Goldberg's drawings reminded his contemporaries of a time when they could understand the world's industrial processes just by looking. No matter how absurd his work was, anyone could trace the reactions involved,' writes Madrigal. 'People like to complain that they can't understand modern cars because of all the fancy parts and electronic doo-dads in them now, but we lost that ability for most things long ago.'"
Microsoft

66% of All Windows Users Still Use Windows XP 931

Posted by samzenpus from the if-it-ain't-broke-don't-fix-it dept.
An anonymous reader writes "Almost one year after the introduction of Windows 7 it appears that the hype surrounding it has faded. The overall market share of Windows has turned into a slight decline again. Windows 7 is gaining share, but cannot keep pace with the loss of Windows XP and Vista. Especially Windows XP users seem to be happy with what they have and appear to be rather resistant to Microsoft's pitches that it is time to upgrade to Windows 7."
Toys

Jet Packs, Finally On Sale 132

Posted by timothy from the pretty-penny-pretty-fun dept.
Bad_CRC1945 writes "The good news: Not one, but two companies are selling jet packs. The bad news: The tech has a long way to go. In the past, potential buyers have been stymied by two problems: Rocket belts aren't for sale, and even prototypes run on modern-day fuel (as opposed to whatever the Jetsons use) which means rocket belts can weigh upwards of 100 pounds, with only enough fuel to stay aloft for under a minute." That second problem's still with us, but the article hints that jet-fuel options (for the brave) could considerably extend users' time aloft.
The Courts

Paul Allen Files Patent Suit Against Apple, Google, Yahoo, Others 219

Posted by Soulskill from the going-for-the-gusto dept.
mewshi_nya writes "A firm run by Microsoft co-founder Paul Allen filed suit alleging 11 technology companies are violating patents developed at a Silicon Valley lab that Allen financed more than a decade ago. Named in the lawsuit: Apple, Google, AOL, eBay, Facebook, Netflix, Office Depot, OfficeMax, Staples, Yahoo and Google's YouTube subsidiary. The suit doesn't name Microsoft, Amazon.com or other tech companies in Seattle where Allen is based, and it doesn't estimate a damage amount. The suit lists violations of four patents (PDF) for technology that appear to be key components of the operations of the companies — and that of e-commerce and Internet search companies in general."
Security

UVB-76 Broadcasts New Voice Message 560

Posted by CmdrTaco from the you-can't-handle-the-truth dept.
Doug52392 writes "Following days of increased activity, the Russian numbers station UVB-76 has sent out a new voice transmission. The transmission, sent out on August 23, 2010 at 9:35AM PST, recited the following in Russian: 'UVB-76, UVB-76 — 93 882 naimina 74 14 35 74 — 9 3 8 8 2 nikolai, anna, ivan, michail, ivan, nikolai, anna, 7, 4, 1, 4, 3, 5, 7, 4' The station, believed to be a part of the former Soviet Union's dead man's switch system, has been continually broadcasting for over twenty years, and its purpose has never been fully explained."
Security

Searching For Backdoors From Rogue IT Staff 328

Posted by CmdrTaco from the i-left-you-a-present dept.
WHiTe VaMPiRe writes "When IT staff are terminated under duress, there is often justification for a complete infrastructure audit to reduce future risk to a company. Here is an exploration of the steps necessary to maintain security." Of course the first piece of advice is to basically assume you've been rooted. Ouch.

Comment Re:The only absurd part of this... (Score 1) 260

by Imabug (#33287894) Attached to: Sell Someone Else's Book On Lulu!

Stewart's Calculus (1st ed) still remains on my bookshelf 20+ years after I took my 2 years of undergrad calculus. Even back then it was an expensive text, but was the only one I needed to purchase for 4 calculus courses. It also served me well through the rest of my undergrad and Master's degree. It was one of a handful of textbooks I kept following my Great Textbook Purge of 2007 and I still use it on a regular basis. I've definitely gotten my money's worth out of it.
Hardware

Chips That Flow With Probabilities, Not Bits 153

Posted by samzenpus from the new-angle dept.
holy_calamity writes "Boston company Lyric Semiconductor has taken the wraps off a microchip designed for statistical calculations that eschews digital logic. It's still made from silicon transistors. But they are arranged gates that compute with analogue signals representing probabilities, not binary bits. That makes it easier to implement calculations of probabilities, says the company, which has a chip for correcting errors in flash memory claimed to be 30 times smaller than a digital logic-based equivalent."
Education

US Students Struggle With Understanding of the 'Equal' Sign 1268

Posted by Soulskill from the confusing-parallel-lines dept.
bickerd--- writes with news of research out of Texas A&M which found that roughly 70% of middle grades students in the US don't fully understand what the 'equal' sign means. Quoting: "'The equal sign is pervasive and fundamentally linked to mathematics from kindergarten through upper-level calculus,' Robert M. Capraro says. 'The idea of symbols that convey relative meaning, such as the equal sign and "less than" and "greater than" signs, is complex and they serve as a precursor to ideas of variables, which also require the same level of abstract thinking.' The problem is students memorize procedures without fully understanding the mathematics, he notes. 'Students who have learned to memorize symbols and who have a limited understanding of the equal sign will tend to solve problems such as 4+3+2=( )+2 by adding the numbers on the left, and placing it in the parentheses, then add those terms and create another equal sign with the new answer,' he explains. 'So the work would look like 4+3+2=(9)+2=11.'"
Networking

Telecom Cables Wanted For Climate Research 48

Posted by timothy from the mind-if-we-borrow-this? dept.
schliz writes "Oceanographers have called for telecommunications companies to use their active and retired submarine fibre to collect climate data. Sydney University's John You says voltmeters could simply be attached to cable landing stations to measure ocean currents via the electromagnetic current that they generate. More information about salinity and seismology could be collected by attaching sensors to repeater boxes that are typically installed every 100km of cable to amplify signals. Because fibre optic cables could remain under the sea for decades, they could be a consistent, continual source of data for researchers."
NASA

NASA Universe-Watching Satellite Losing Its Cool 153

Posted by CmdrTaco from the grandma-made-it-a-sweater dept.
coondoggie writes "NASA this week said its Wide-field Infrared Survey Explorer, or WISE satellite is heating up — not a good thing when your primary mission instrument needs to be kept cold to work. According to NASA, WISE has two coolant tanks that keep the spacecraft's normal operating temperature at 12 Kelvin (minus 438 degrees Fahrenheit). The outer, secondary tank is now depleted, causing the temperature to increase. One of WISE's infrared detectors, the longest-wavelength band most sensitive to heat, stopped producing useful data once the telescope warmed to 31 Kelvin (minus 404 degrees Fahrenheit)."
Social Networks

Can Twitter and Facebook Deal With Their Dead? 284

Posted by CmdrTaco from the i'll-get-my-cart dept.
Barence writes "One and a half million Facebook users die each year. Twitter faces a similar mortality rate. Yet the social networks have been relatively slow to deal with the uncomfortable business of death. Only this week has Twitter finally unveiled a policy for handling the accounts of dead members. Yet the process for closing the accounts of deceased relatives is complicated, while reminders to follow the accounts of people who have long since passed away continue to arrive, adding to the pain of grieving friends and relatives."
Social Networks

Could Crowdsourcing Help the SEC Detect Fraud? 148

Posted by Soulskill from the sure-couldn't-hurt dept.
An anonymous reader writes "The SEC failed to catch Bernie Madoff largely because they are understaffed (a fact the SEC itself has admitted), under-funded, and simply lack the resources to adequately investigate his activities. Undoubtedly, there were other smaller incidents of fraud that have gone unpunished because of this deficiency. To solve this egregious issue, NERA Economic Consulting proposed crowdsourcing, the concept behind Wikipedia's existence. Proving financial fraud is essentially an exercise in finding numbers that do not match. Through crowdsourcing, regulators would make financial data publicly available to the masses, who would do the 'grunt work' of sifting through them to find discrepancies. But would it work?"
Math

Possible Issues With the P != NP Proof 147

Posted by Soulskill from the intuitively-obvious-to-the-most-casual-observer dept.
An anonymous reader writes "We previously discussed news that Vinay Deolalikar, a Principal Research Scientist at HP Labs, wrote a paper that claimed to prove P is not equal to NP. Dick Lipton, a Professor of Computer Science at Georgia Tech, analyzed the idea of the proof on his blog. In a recent post, he explains that there have been many serious objections raised about the proof. The post summarizes the issues that need to be answered in any subsequent development, and additional concerns are raised in the comment section."
Security

The Shoddy State of Automotive Wireless Security 260

Posted by Soulskill from the can't-wait-for-toyota-two-point-oh dept.
angry tapir writes "Researchers from Rutgers University and University of South Carolina have found that wireless communications between new cars and their tires can be intercepted or even forged. While the potential for misuse may be minimal, this vulnerability points to a troubling lack of rigor with secure software development for new automobiles, said Wenyuan Xu, a computer science assistant professor at the University of South Carolina, who was a co-lead on the study. The researchers will present their findings at the Usenix Security Symposium, being held this week in Washington DC."

Slashdot Top Deals

If you analyse anything, you destroy it. -- Arthur Miller

Close