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Comment Using Incandescents means *more* mercury release. (Score 5, Insightful) 1049

I see the CFL = Mercury thing all the time and frankly it's avoiding the fact that the power savings from replacing an Incandescent with a CFL mean you take less power, burn less coal and release less mercury into the air.

Here's the math:
Take a 100w bulb and replace it with a 17W CFL - average lifetime of a CFL is about 10,000 hours. So that 83w power difference over 10,000 hours is 3 gigajoules. Coal power content is about 33 megajoules per kilogram - so that works out to about 90kilograms of coal over the lifetime of the bulb. Mercury content varies but about 10 parts/million is a reasonable average - so that pile of coal will contain about 900 miligrams of mercury. CFL's contain about 5milligrams (although there are 'eco friendly' bulbs that contain less than a milligram.

Now, there are other factors, firstly the fuel cycle of power plants isn't 100% so the amount of coal will be higher, on the other hand, in the US only about 50% of the electrical power comes from coal.

Regardless - Incandescents are *worse* in terms of mercury pollution, and anyone telling you otherwise is either misinformed or lying.

Comment Some notes From The Creator (Score 5, Informative) 154

I hadn't quite finished this, I wanted to record a voiceover, but a friend submitted it before I was ready.

So essentially the video shows asteroids which are known, so in the early portions around 1980 we have less than 10,000 and by the start of this month we have over half a million. Asteroids are highlighted on discovery and within a second they fade to the colour appropriate to their orbit (Green, Yellow and Red), asteroids are usually observed intensely around discovery and once an orbit is determined observers can go back and follow up to refine the exact elements, I only show the discovery, not follow up measurements. This does mean that a number of the objects that are being plotted have orbits that may be so poorly determined that they are 'lost in space' because they were only observed for a short time and by the time people attempted to follow up they were lost.

At the start of the videos, the 1980's, CCD's weren't used for astronomy, photographic plates were the primary technology for imaging the sky, furthermore, there were no digital systems for identifying asteroids on these plates, so while many asteroids were no doubt imaged they were generally not of interest to the observers who were probably taking nice pictures of nebula or other photogenic phenomena. Many of the discoveries in the 1980's were still made visually by minor planet hunters who knew what they were looking for. One of the earliest 'bursts' in the video is most likely related to observations of Jupiter searching for new moons around the giant planet, they'd look for objects moving on the plates and then make an orbit determination to see if it was a moon, it's waaaaay cooler to find a moon since they're a rarer commodity, but if you merely find an asteroid at least you get a chance to name it.

By the time we get to the mid 1990's we start to see automated sky search programmes like LINEAR, LONEOS, Spacewatch and the Catalina Sky Survey and these are primarily searching for asteroids in opposition since they're closer to Earth and at peak brightness so you can see a discovery cluster radiating out from the Earth.

In the last 8 months you see WISE which is a satellite performing a full sky survey in the Infrared, its scans the sky at 90 degrees to the sun, so its discovery pattern is very distinctive.

Comment Have you tried the alternative store? (Score 5, Insightful) 509

I unlocked my phone within minutes of getting it home. I then proceded to take a look at the apps available via the Cydia store, which is unencumbered by the Apple review process.
Pretty much everything I tried was garbage with the developers doing just enough to get something ported and then abandoning it regardless of what kind of glaring bugs are in the system, yes the reveiw process is harsh but it does help maintain a minimum level of quality that is bettter than 99% of the apps in the cydia store.
(still, being able to get low level access to my phone still makes the jailbreak worthwhile)

Comment Re:Monkey see, monkey do.. (Score 1) 435

Yes you'd be surprised at how quickly kids pick up things, my 4 year old is at least as capable as the kid in the ad. And it's not just with computers, while she likes playing tunes on her mp3 player she prefers to go into the basement and play records from my extensive vinyl collection. She has her own laptop and likes to play all sorts of things on it.

Space

The Quietest Sun 227

Orbity sends in a Boston Globe report on the unusual calm on the surface of the sun. The photos, many taken in more active solar times, are excellent — see the sequence from last year of a coronal mass ejection carrying away the tail of a comet. "The Sun is now in the quietest phase of its 11-year activity cycle, the solar minimum — in fact, it has been unusually quiet this year — with over 200 days so far with no observed sunspots. The solar wind has also dropped to its lowest levels in 50 years. Scientists are unsure of the significance of this unusual calm..." As if to be contrary, New Scientist mentions that the number of sunspots seem to be increasing.
Music

Submission + - Record Labels Change Minds About Sharing MP3s 1

Mass Defect writes: "While the RIAA continues to sue people for p2p file sharing the record labels have made an about face and given their blessing to users sharing mp3's via the social networking site imeem.com. In May this year the site was being sued by Warner for running a site which allowed users to upload photos, videos and music to share on the site. However to everyone's amazement, instead of being sued out of existence, the site managed to convince the label that this free promotion was a good thing, and in July signed a deal with the label. Since then the site has added Sony, BMG, EMI and now the biggest fish of them all Universal. Imeem now has the royal flush of record labels supporting its media sharing service, each getting a cut of the advertising revenues generated by their catalogue. Finally someone has figured out a way to do 'youtube for mp3s' without getting lawsuited out of existence."
Social Networks

Submission + - imeem ('youtube for mp3s') Goes Legit (news.com)

illectro writes: "imeem.com has signed a deal with Universal music making it's 'youtube for mp3s' site completely street legal. This caps off an eventful year for the social site which has seen it sued by Warner Music before signing a deal with them, later followed by deals with Sony/BMG and EMI music and now Universal. This gives them legal access to all major label music and allows users of the site to freely upload and share music, with a cut of the advertising revenue going to the copyright holders."
Google

Submission + - To use Orkut or not to use Orkut... (blogsport.com)

An anonymous reader writes: With all of the different web sites supporting blogging, social networking, and the like; which one seems to be taking the leadership spot? I am interested in establishing an online community and am thinking of using Orkut. My reasoning behind this decision is based on the fact that Google controls it and I hope, one day, Orkut will be seamlessly integrated into the Google collective.

Right now, Google seems to be offering parallel services amongst Google Groups, Blogger, Orkut, gmail, gtalk, Page Creator, and Local Business Center. I understand some of these services were not "Invented" at Google, so there will be some redundancy; but I hope this is just a temporary inconvenience.

It would be very cool if Google could get all of these services integrated, along with Google Earth/Map, and have a dashboard (iGoogle?) providing a one-stop site to do all of my blogging/networking/searching/time wasting.

What does the /. Community think of Orkut and the idea of having Google integrate all of these services and eliminate some of the redundant functionality?

Music

Submission + - A New Era Of Ad Supported Music?

youngsteve writes: "With Amazon launching its DRM free music service and Virgin closing their service it would appear that selling music with limitations is becoming a losing proposition. However a number of companies have done the next logical thing and started giving away music supported by advertising revenues. imeem.com has been running a 'youtube for music' style site for the last couple of years and recently 'went legit' when they signed deals with Warner Brothers and Sony/BMG the music is high quality, on demand and user supplied which makes it feel a lot like the original Napster. Spiralfrog goes beyond browser based streaming and provides downloads of DRM protected windows media files (it's restricted to Internet Explorer users in North America) which allow you to load them onto some mp3 players but you're not allowed to burn them to CD. A third ad supported service — QTrax has yet to do much beyond press releases. So is there a market that will accept this restricted content because it's available for free, or is it a halfway step between p2p and paid downloads that has no place in the market."

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