Become a fan of Slashdot on Facebook

 



Forgot your password?
typodupeerror
×

Comment Re:home use? (Score 1) 270

So you'll avoid hyperinflation by engaging in the very herd-behaviour patterns that cause it? Maybe you haven't thought this through :)

What I'm arguing against here is what I see as a deep misunderstanding amongst pop-economists of thermodynamics and the economics of energy supply (eg. EROI), the disastrous failure of existing economic models to effectively manage limited energy resources, the vulnerability of economies, and industrial civilization itself, to sudden collapse in the face of declining cheap energy supplies, and ignorance amongst economists about the necessity of maintaining atmospheric homeostasis for the continued existence of our species.

I hear arguments all the time of the form "$x/bbl oil will make energy technology x economically viable.", as though there would be capacity in an economy to re-equip its industry at a time when the vast majority of its people cannot obtain food or fuel and their homes are underwater. That doesn't work at all.

Unfortunately economics today is a counterproductive pseudoscience that compromises people's critical faculties, their capacity for big picture analysis, and their ability to help us prepare for / prevent a future characterized by hazardous environmental conditions and absence of cheap, availably energy sources.

Image

Own Your Own Fighter Jet Screenshot-sm 222

gimmebeer writes "The Russian Sukhoi SU-27 has a top speed of Mach 1.8 (more than 1,300 mph) and has a thrust to weight ratio greater than 1 to 1. That means it can accelerate while climbing straight up. It was designed to fight against the best the US had to offer, and now it can be yours for the price of a mediocre used business jet."
Space

Spectrum of Light Captured From Distant World 32

An anonymous reader writes with this excerpt from Cosmos: "Astronomers have made the first direct capture of a spectrum of light from a planet outside the Solar System and are deciphering its composition. The light was snared from a giant planet that orbits a bright young star called HR 8799 about 130 light-years from Earth, said the European Southern Observatory (ESO). ... The find is important, because hidden within a light spectrum are clues about the relative amounts of different elements in the planet's atmosphere. 'The features observed in the spectrum are not compatible with current theoretical models,' said co-author Wolfgang Brandner. 'We need to take into account a more detailed description of the atmospheric dust clouds, or accept that the atmosphere has a different chemical composition from that previously assumed.' The result represents a milestone in the search for life elsewhere in the universe, said the ESO. Until now, astronomers have been able to get only an indirect light sample from an exoplanet, as worlds beyond our Solar System are called. They do this by measuring the spectrum of a star twice — while an orbiting exoplanet passes near to the front of it, and again while the planet is directly behind it. The planet's spectrum is thus calculated by subtracting one light sample from another."
Media

Tired of Flash? HTML5 Viewer For YouTube 372

An anonymous reader writes "Instead of spending the next 10 years trying to find a Flash implementation for Linux or OS X that doesn't drain CPU cycles like there's no tomorrow, NeoSmart Technologies has made an HTML5 viewer for YouTube videos. It loads YouTube videos in an HTML5 video container and streams (with skip/skim/pause/resume) against an MP4 resource, and an (optional) userscript file can update YouTube pages with the HTML5 viewer. The latest versions of Firefox, Chrome, and Safari are supported. Personally, I can't wait until the major video sites default to HTML5 and we can finally say goodbye to Flash."
The Internet

Family's Christmas Photos Hawk Groceries In Prague 263

Hugh Pickens writes "The Telegraph reports that Jeff and Danielle Smith sent a photo of themselves with their two young children to family and friends as a Christmas card, and posted the image on her blog and a few social networking websites. Then, last month, a friend of the family was vacationing in the Czech Republic when he spotted a full size poster of the Missouri family's smiling faces in the window of a local supermarket in Prague, advertising a grocery delivery service. The friend snapped a few pictures and sent them to the Smiths, who were flabbergasted. Mario Bertuccio, who owns the Grazie store in Prague, admitted that he had found the photo online but thought it was computer-generated and promised to remove it, and 'We'll be happy to write an e-mail with our apology,' he says. Meanwhile Mrs. Smith has received 180,000 visitors and over 500 comments on her blog since she posted the story. She says she is glad the photo wasn't used in an unseemly manner. 'Interesting. Bizarre. Flattering, I suppose,' writes Mrs. Smith. 'But quite creepy.'"
Power

Ubiquitous Hydrogen Power Not Getting Any Closer 267

NewScientist has a story about the "hydrogen economy" that has been resting on the horizon for a decade or more. Despite a great deal of enthusiasm for and research into hydrogen-based power systems, the technology seems just as far away from everyday use as it's always been. A British startup, ITM Power, has recently claimed a breakthrough in lowering production costs by using a nickel catalyst (rather than platinum) with a membrane small enough for home use. But, even if their method is proven and adopted, it still wouldn't address huge energy efficiency problems in the process. "The point was made forcefully by Gary Kendall of the conservation group WWF in a recent report called Plugged In (PDF, pgs. 135-149). Kendall, a chemist who previously spent almost a decade working for ExxonMobil, highlights how the energy losses in the fuel chain - from electrolysis to compression of the hydrogen for use to inefficiencies in the fuel cell itself — mean that only 24 per cent of the energy used to make the fuel does any useful work on the road."
The Internet

AT&T Begins a Trial To Cap, Meter Internet Usage 421

An anonymous reader writes "On the heels of Comcast's decision to implement a 250-GB monthly cap, and Time Warner Cable's exploration of caps and overage fees, DSL Reports notes that AT&T is launching a metered billing trial of their own in Reno, Nevada. According to a filing with the FCC (PDF), AT&T's existing tiers, which range from 768 kbps to 6 Mbps, would see caps ranging from 20 GB to 150 GB per month. Users who exceed those caps would pay an additional $1 per gigabyte, per month."
Space

Space Litter To Hit Earth Tomorrow 443

A refrigerator-sized tank of toxic ammonia, tossed from the international space station last year, is expected to hit earth tomorrow afternoon or evening. The 1,400-pound object was deliberately jettisoned — by hand — from the ISS's robot arm in July 2007. Since the time of re-entry is uncertain, so is the location. "NASA expects up to 15 pieces of the tank to survive the searing hot temperatures of re-entry, ranging in size from about 1.4 ounces (40 grams) to nearly 40 pounds (17.5 kilograms). ... [T]he largest pieces could slam into the Earth's surface at about 100 mph (161 kph). ...'If anybody found a piece of anything on the ground Monday morning, I would hope they wouldn't get too close to it,' [a NASA spokesman] said."
Software

Submission + - Torvalds calls Apple file system 'utter crap'

An anonymous reader writes: http://www.engadget.com/2008/02/05/linus-torvalds-calls-apples-file-system-utter-crap/ In a recent interview, Linus says that OS X is a "much better system" than Windows Vista overall, but that "in some ways is actually worse than Windows to program for." Apparently these problems are rooted firmly in OS X's file system (HFS and HFS+), which he describes as "complete and utter crap," and even "scary."

Slashdot Top Deals

A morsel of genuine history is a thing so rare as to be always valuable. -- Thomas Jefferson

Working...