MasterPlaid - Slashdot User

Hydrogen Won't Save Our Economy 723

Posted by kdawson on Wednesday December 13, 2006 @06:21AM from the tell-us-something-we-don't-know dept.

anaesthetica writes "Physorg.com is featuring a story asserting that hydrogen is economically infeasible as a replacement for our current energy sources. The premise is that isolating and converting hydrogen into a usable energy source takes up a great deal of energy to begin with, and that subsequently converting that hydrogen fuel into usable energy results in an overall efficiency of only about 25%. Apparently, the increasing scarcity of water is going to make hydrogen too costly and just as politicized as oil." From the article: "[Fuel cell expert Ulf Bossel's] overall energy analysis of a hydrogen economy demonstrates that high energy losses inevitably resulting from the laws of physics mean that a hydrogen economy will never make sense. The advantages of hydrogen praised by journalists (non-toxic, burns to water, abundance of hydrogen in the Universe, etc.) are misleading, because the production of hydrogen depends on the availability of energy and water, both of which are increasingly rare and may become political issues, as much as oil and natural gas are today."

Icebergs Sailing Past New Zealand 236

Posted by samzenpus on Thursday November 16, 2006 @12:51AM from the kiwi-smoothie dept.

An anonymous reader writes "A fleet of icebergs is heading north from Antarctica and at least one has reached New Zealand, an event that has not occurred in decades. While not necessarily a consequence of global warming it is very cool!"

Global Warming Debunked? 1120

Posted by kdawson on Monday November 06, 2006 @04:11PM from the concensus-or-what? dept.

limbicsystem writes, "I'm a scientist. I like Al Gore. I donate to the Sierra club, I bicycle everywhere and I eat granola. And I just read a very convincing article in the UK Telegraph that makes me think that the 'scientific consensus' on global warming is more than a little shaky. Now IANACS (I am not a climate scientist). And the Telegraph is notoriously reactionary. Can anyone out there go through this piece and tell me why it might be wrong? Because it seems to be solid, well researched, and somewhat damning of a host of authorities (the UN, the editors of Nature, the Canadian Government) who seem to have picked a side in the global warming debate without looking at the evidence." The author of the Telegraph piece is Christopher Monckton, a retired journalist and former policy advisor to Margaret Thatcher.

Tackling Global Warming Cheaper Than Ignoring It 586

Posted by kdawson on Sunday October 29, 2006 @08:03PM from the ounce-of-prevention dept.

Coryoth writes, "In a report commissioned by the UK government, respected economist Sir Nicholas Stern concludes that mitigating global warming could cost around 1% of global GDP if spent immediately, but ignoring the problem could cost between 5% and 20% of global GDP. The 700-page study represents the first major report on climate change from an economist rather than a scientist. The report calls for the introduction of green taxes and carbon trading schemes as soon as possible, and calls on the international community to sign a new pact on greenhouse emissions by next year rather than in 2010/11. At the very least the UK government is taking the report seriously; both major parties are proposing new green taxes. Stern points out, however, that any action will only be effective if truly global."

Crunching the Numbers on a Hydrogen Economy 396

Posted by CowboyNeal on Tuesday October 17, 2006 @07:20AM from the kilowatt-hourly-rates dept.

mattnyc99 writes "In its new cover story, 'The Truth About Hydrogen,' Popular Mechanics magazine takes a close look at how close the United States is to powering its homes, cars and economy with hydrogen — including a calculation of where all the hydrogen would come from to meet President Bush's demands. Interesting that they break down the future of hydropower not by its advantages but by its challenges: production, storage, distribution and use."

MySpace Organizes Sudan Fundraiser 164

Posted by ScuttleMonkey on Monday October 09, 2006 @11:27PM from the court-of-public-opinion dept.

tanman writes to tell us CNN is reporting that MySpace is sponsoring a series of 20 concerts as an effort to raise awareness about the humanitarian relief efforts in Sudan. From the article: "The concerts will take place October 21. Artists include TV on the Radio in Philadelphia, Alice in Chains in Winston-Salem, North Carolina, Ziggy Marley in Medford, Oregon, Citizen Cope in Seattle, Gov't Mule in Spokane, Washington, and Insane Clown Posse in St. Petersburg, Florida."

Mass Extinctions from Global Warming? 348

Posted by Zonk on Sunday October 08, 2006 @07:24AM from the ruh-roh-raggy dept.

uncleO writes "The current issue of Scientific American has an interesting article, Impact from the Deep, about the possible causes for the five major global extinctions. It contends that only the most recent one was caused by a 'dinosaur killer' asteroid impact. Evidence suggests that the others were caused by 'great bubbles of toxic H2S gas erupting into the atmosphere' from the oceans due to anoxia." From the article: "The so-called thermal extinction at the end of the Paleocene began when atmospheric CO2 was just under 1,000 parts per million (ppm). At the end of the Triassic, CO2 was just above 1,000 ppm. Today with CO2 around 385 ppm...climbing at an annual rate of 2 ppm...to 3 ppm, levels could approach 900 ppm by the end of the next century."

Will the Wii Work? 425

Posted by Zonk on Wednesday September 20, 2006 @03:37PM from the like-a-charm-or-an-anvil dept.

Today BusinessWeek is running an article asking Will Nintendo's Wii Strategy Score? With the Tokyo Game Show this week, they run down the trials facing Nintendo's little-box-that-could both here in the States, and in Japan. From the article: "Few expect truly dedicated gamers to choose the Wii over the PS3 or Xbox. And ultimately, the advantage may go to Sony. Yuta Sakurai, an analyst at Nomura Securities in Tokyo, expects the PS3 to sell 71 million units by 2011, compared with 40 million units for the Wii. Microsoft, meanwhile, is planning a stripped-down version of the Xbox without a hard-disk drive and other accessories that will cost about $250 in Japan, where the U.S. software maker has endured disappointing results."

Pluto Decision Meets with Frustration 464

Posted by Zonk on Friday August 25, 2006 @06:31PM from the tiny-grey-different dept.

fuzzybunny writes "The BBC reports that the IAU's controversial Prague vote on demoting Pluto from planet status was irregular. 'There were 2,700 astronomers in Prague during that 10-day period. But only 10% of them voted this afternoon.'" On a less serious note, lx writes "Nonplussed by Pluto's recent downgrade from Planet Status, Fox News's own John Gibson does an incredible Stephen Colbert impersonation to correct the 'revisionist history' of the IAU's decision. Exemplifying 'truthiness,' from the article: 'Long ago I learned it was a planet and I see no reason to unlearn it. Why should I?' "

Comment MOND (Score 4, Insightful) 459

by MasterPlaid on Monday August 21, 2006 @08:59PM (#15952692) Attached to: Dark Matter Exists

From the title - "This result doesn't rule out alternate gravity theories like MOND". Actually, this directly rules out MOND. That's a big part of the point of the experiment.The idea is that the mass in these clusters doesn't come from the obvious sources of visible matter (the gas), as it would in a MOND or normal gravity scenario, but rather from the invisible (i.e., dark) matter.

Dark Matter Exists 459

Posted by samzenpus on Monday August 21, 2006 @08:08PM from the not-just-ordinary-matter-anymore dept.

olclops writes "It's a big day for astrophysics. After much speculation, scientists now have conclusive proof of dark matter. This result doesn't rule out alternate gravity theories like MOND, but it does mean those theories will have to account for exotic forms of dark matter."

Dvorak Adores YouTube 193

Posted by Hemos on Saturday August 12, 2006 @05:46PM from the and-someday-we'll-have-a-real-business-model dept.

prostoalex writes "MarketWatch columnist John C. Dvorak tells the public to stop fretting about YouTube's business model and just start enjoying the functionality: "Since I like to run videos on my blog this turns out to be a great way to both transcode and save bandwidth since YouTube picks up the tab on the video stream. Would I pay for this service, yes. I have seriously looked at the alternatives to YouTube. With no exceptions they are all flawed.""

PR Firm Behind Al Gore YouTube Spoof? 777

Posted by ScuttleMonkey on Sunday August 06, 2006 @06:11PM from the new-intarweb-trolls dept.

mytrip writes to tell us ABC News is reporting that a supposed amateur video posted to YouTube.com may have actually been designed and posted by a Republican public relations firm called DCI. From the article: "Public relations firms have long used computer technology to create bogus grassroots campaigns, which are called 'Astroturf.' Now these firms are being hired to push illusions on the Internet to create the false impression of real people blogging, e-mailing and making films."

NASA Revives Main Hubble Telescope Camera 111

Posted by Zonk on Friday June 30, 2006 @07:29PM from the i-can-see-you-again dept.

antikarma writes "NASA engineers successfully activated the Advanced Camera for Surveys at 9:12 a.m. EDT Friday aboard the agency's Hubble Space Telescope. Checkout was completed at 10:20 a.m. EDT with science observations scheduled to resume Sunday, July 2. 'This is the best possible news,' said Ed Ruitberg, deputy associate director for the Astrophysics Division at NASA's Goddard Space Flight Center, Greenbelt, Md. 'We were confident we could work through the camera issue, and now we can get back to doing more incredible science with the camera.'"

Net Neutrality, Schlocky Salesmen vs Monopolist Plumbers 385

Posted by ScuttleMonkey on Tuesday June 20, 2006 @03:53PM from the end-user-stuck-in-the-middle dept.

Andy Kessler has written a short tongue-in-cheek summary of the net neutrality debate over on the Weekly Standard. Kessler identifies the two sides as the 'schlocky ad salesmen' (Google, Yahoo!, etc) and the 'monopolist plumbers' (Verizon, AT&T, etc) and when you add the politicians to the mix it creates a pretty untenable situation. From the article: "But the answer is not regulations imposing net neutrality. You can already smell the mandates and the loopholes once Congress gets involved. Think special, high-speed priority for campaign commercials or educational videos about global warming. Or roadblocks--like requiring emergency 911 service--to try to kill off free Internet telephone services such as Skype. And who knows what else? Network neutrality won't be the laissez-faire sandbox its supporters think, but more like used kitty litter. We all know that regulations beget more lobbyists. I'd rather let the market sort these things out."

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