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Archive for December, 2009

Best RoI for Green Tech

Posted by Andrew at 3:05 AM on December 7, 2009

In GNC #532, Todd mentioned that the price of solar was going to fall by 30%.  In this, case, he was talking about photovoltaic cells, i.e. ones that generate electricity from sunlight, but there are a whole host of green energy technologies.  So what gives the best return on your green investment?

The Self Build show was on in Belfast in the summer.  It’s an exhibition much like any other with stands and booths but this one caters for people who want to plan, build or extend their home.  The exhibitors are really diverse from brick manufacturers to bespoke furniture makers but this year it was the green technologies that were most prevalent.
 
I’d visited the show a couple of years ago and then there might have been a handful at most of stands doing eco-friendly stuff.  Wind turbines, heat recovery and roof tiles made from recycled car tyres was about it.  This year there was a whole hall of stands with ground source heat pumps, solar panels, woodchip-fired boilers, wind
turbines, super insulation, triple-glazed windows – the works.
 
What I wanted to pass on was a presentation given by a local housing association who had been proactive in trying out different energy sources and properly measuring the energy benefit gained.  Given that it was only a ten minute presentation, he didn’t go into detailed facts and figures but the findings were still of interest.  Remember this relates to about 55 degrees North and there may be regional variations.
 
Here are the technologies that were investigated and a summary of the findings.
 
i) Ground source heat pumps – these work well where underfloor heating or air heating is used to heat the house, as the temperature only needs to be raised to 25-30C.  Savings are greatly reduced if trying to raise temperature to 60C for hot water or for radiator-based
central heating.  Consequently, it’s difficult to retro-fit this technology to an existing house, but it’s ideal for new builds.
 
ii) Air source heat pumps – as for the ground source heat pumps but pumps tend to be less reliable and noisier.  This may not be so much of an issue in the US or hot countries, where air conditioning units are more prevalent.
 
iii) Wind turbines – the small wind turbines used in domestic situations are often not high enough off the ground and suffer badly from turbulence.  The cost / benefit of these devices was often marginal, but it does depend a great deal on location.  The presenter
thought that vertical axis turbines might overcome some of the issues but hadn’t been able to do a study.  If the turbine does generate surplus electricity, this can be sold back to the grid.
 
iv) Photovoltaic cells – currently too expensive and provide too little energy in northerly latitudes to be worthwhile.
 
v) Solar panels (evacuated tube) – after the ground source heat pump, probably the best next thing to consider.  Usually only used to heat hot water as heating effect varies during the year, but overall good cost-benefit, even in northerly climates.  Evacuated tubes are more efficient than similar flat plat models and are easier to fix if damaged.  Can be retrofitted to existing properties.
 
vi) Solar panels (flat plate) – as for evacuated tube but less efficient.
 
vii) Woodchip fired boilers – instead of burning oil or natural gas, the fuel is woodchip pellets.  The main benefit of these boilers is the low cost of the fuel which is typically a quarter that of oil or gas for a similar heat output.  The biggest downside is the storage space need for the storing the woodchip pellets.  If you have the space, can be fitted into existing homes.
 
While this is not an exhaustive analysis, it should provide enough information for you to start your own in-depth analysis.  I’m installing into an existing property and previously, I’d been considering the wind turbines.  However, I think that the evacuated tube solar panels are now the best choice and will be looking into those instead.

Do also bear in mind the environmental conditions that you currently live in – this study was for the northerly part of the UK so pick your tech accordingly and do your homework.

I broke my Kindle and it really Sucks!

Posted by geeknews at 2:56 AM on December 7, 2009

I broke my Kindle and it was my own fault. Sat my computer bag on it when I pulled it out of the overhead to pack things away from my flight home. I knew instantly that I had jacked the screen and that really was not the way I wanted to end my latest trip. I went online to check pricing for a new unit and because I have such a huge assortment of books, I really have no alternative. This time I am going to get a protective jacket for it.

Totally sucks because I love my Kindle. When I travel I read a great deal, and you know I travel a lot. This is the first time in many years I have broken a piece of electronics. I have had stuff fail on me before but this was a case of smashing the screen with my over weight computer bag, it did not stand a chance. The worst part I was hot and heavy into a book I was reading, and now will have to wait till my new unit shows. up.

So what have you broken lately?

Draft 2009 24hr Podcast Schedule!

Posted by geeknews at 12:54 AM on December 7, 2009

Folks this is the rough draft and I am sure some times are going to change somewhat over the next couple of days. I also have some more participants to add. We have plenty of time slots for the middle of the night on the 13th please consider participating.

As a reminder this is a charity event to raise money for Ronald Mcdonald House Charities Donate Today. 100% of all Donations will go to this charity on December 21st 2009


Clear WiMax Hawaii

Posted by geeknews at 10:42 PM on December 6, 2009

I have been a Clearwire / Clear customer for 2+ years. Overall the service has been pretty bad over the past 2 years and we only used the service for a backup connection. On the old Clearwire 1st gen system we saw average Speed Test in the 1500 kbps down  350 kbps up and the connection was really bad.

Last week I decided to give Clear one more shot. Essentially I decided to do a head to head test with Hawaiian Telecom DSL and the new Clear WiMax. Let me show you the new Hawaii Clear WiMax speed test.

sprint3

In all honesty with all the hype I was expecting a whole heck of a lot more speed. The Upload speed is horrible as you can see. I was getting that upload speed with Sprint EVDO 3G.

My clear modem has a strong signal all bars are lite so it is not a matter of signal strength. The modem sits in a window facing the tower so I know we are getting a good signal. But the problems with clear service continues.

In streaming video off of YouTube, Ustream it is choppy the video stop and sputters. I find email times out and overall the service quality while the speed is faster is about the same.

The DSL modem that I got from Hawaiian Telecom has none of these issues. I am a long way from the switch and maintain a steady 3000 kbps down and 1000 kbps up and the video on YouTube and Ustream does not sputter and email has been solid.

Unless someone at Clear Hawaii can explain to me why their service is still crap I am cancelling my Clear WiMax service and do not recommend it at this time to any Hawaii customer. Call Road Runner or Hawaiian Telecom and you will get a connection that is wired and works.

Hawaii Sprint 4G – Wimax – 3G Speed Test

Posted by geeknews at 10:30 PM on December 6, 2009

Over the past 4 years I have been a subscriber of Sprint 3G/EVDO service here in Hawaii and have traveled extensively with the service. Up until last week I was using Novatel U720 card which in Hawaii and almost everyplace I went was able support 1550 kbps Down and 500 kbps up.. This was the speed I was able to achieve in almost any Sprint market.

Wanting to get in on the 4G / WiMax action I ordered the Sprint U300 card which is dual purpose 3G/4G or as they call it WiMax.

When I put the card in 3G mode and connect to the internet and do a speed test my speed has dropped of to unacceptable levels. Now remember with my old card I was getting 1500 down and 500 up. Here is what I am getting on the new card on the old 3G Network.
sprint2

Can you believe that crap.. This is the speed I got out of the card here in Hawaii, Dallas and Austin.

So lets look at performance of Spring WiMax / 4G for the Hawaii which was turned on 6 days ago.

sprint1

Not bad and I am happy with the new speed but the question remains why did the speed drop of with the 3G portion of the card. Well I have been doing some test and it is the card. The Sprint U300 is a piece of crap for 3G. Sadly the U300 has no antenna port either? I am at a toss-up on what to do.. I may cancel the 3G service for this card and sign up for a second account that is 3G only with the other card. This way I can still get high-speed 3G when I travel to non WiMax /4G areas.

I would love to talk to sprint on this and see if they can make me happy. My advice do not upgrade to the U300 card unless you are willing to never get any value out of the 3G connection.

GNC-2009-12-03 #533 Turn the Heat Down Dummy!

Posted by geeknews at 10:37 PM on December 3, 2009

Reminder to oneself turn the heat off in the room before starting the show. Not good to record the show when its 80 in the room. The folks watching the live stream got to watch a meltdown. :) Full tech show for you tonight. Ready to head home plans for 24hr Podcast are progressing. I review names submitted for the skypesaurus email me your choice.

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Listener Links:
Man controls robot arm by mind!
Windows 7 Upgrade Advisor.
Distracted Drive Story #1
Distracted Drive Story #2

Show Notes:
Playstation at 15!
HD Optical Implants?
Touch Screen for Cannon Cameras
Need more USB Charging Ports?
Have a Dell get your Updates!
Computer the size of two mouses.
Installation CD/DVD Please!
Gifts for those hard to buy for relatives.
Netbook Application Store.
Comcast and NBC Universal.
The 411 of the Comcast / NBC Universal deal.
Google DNS is this more Big Brother?
Will Google, Twitter & Facebook control logins?
FCC inquiry going after TV Spectrum!
Do we need a Twitter Clone?
Chrome Browser for Mac to be released soon!
Journalist get it way wrong on Black Screen of Death.
How fast is your Site Google wants webmaster to check!
Alex from Diggnation hints at cheap Apple Tablet.
Mars Odyssey reboots.
ISS down to two!
Quasar Puzzle!
Be careful of H1N1 emails.
Microsoft wants your Windows 7 Tips and Tricks.
AT&T and Verizon Kiss and Make up.
BBC shuts down Counterfeit sites.
Comcast roles out Bandwidth Usage Page.
Space based Solar power a go in Sunshine State.

Send in your stories to geeknews@gmail.com and be sure to provide a link to your websites!

McAffee: .cm Top Level Domains are the Worst

Posted by Jeffrey Powers at 11:48 AM on December 2, 2009

mcaffeeMcAffee put out their annual “Mapping the Mal Web” report. It is a PDF that lets you know how risky a website in a Top Level Domain (TLD) can be. Since the .com is so widely used, it’s easy to say it’s on the top of the list. But it’s not #1 – that dubious honor is left to Camroon – the .cm domain.

I always said that TLD’s in other countries are not the best way to go for a domain. Generic TLDs are controlled by the Internet Assigned Numbers Authority (IANA). These include .com, .net, .edu, .org, .biz and a host of others. This is because an individual company that holds a TLD could fold at any time and the TLD with it.

Take the case of .md – It was a TLD held by an independant company from 1995 – 2003. On May 20th, 2003, the IANA was informed that the parent company – dot MD, LLC – fell under chapter 11 bankruptcy. The TLD was in flux for a while, but eventually became sponsored (which is all you can ever do for a TLD) by MoldData.

In the case of .md, health care or those in Moldova, would use this TLD. If this was a TLD that really didn’t work for a country or a profession (let’s say .qq), it would have most likely been disbanded unless a new sponsor was found. Also, unless you were a doctor or one of 3.5 million residents of the country, this TLD would show small risk for malware.

The top 3 on McAffee’s list – .CM, .COM and .CN. The 3rd is the People’s Republic of China, but what’s more interesting is the fact that if you accidentally mistype, you could easily go to google dot cm or google dot cn.

McAffee stated in their report that 5.8% of all domains showed risk. Up from last years’ 4.1%. Seven of the twenty riskiest TLDs were in the Asia – Pacific region. .CM came in with a risk level of 36.7%, .com was at 32.2% , .cn was 23.4% and .info was at 15.8%.

On a good note, Hong Kong dropped from the top 10 in 2008 to 34th place. Therefore, some TLDs are doing a lot to make their areas of the web a little safer. Congrats .hk.

On the other end of the spectrum, .gov (Government), .jp (Japan), .edu (Education), .ie (Ireland) and .hr (Croatia) are the least risky. It makes perfect sense with .gov and .edu – because you need to be in government or education to have the TLD. However, Japan, Ireland and Croatia were a surprise – especially since with Ireland you can easily make words out of the TLD, like Carr.ie, bird.ie, coll.ie, yupp.ie and microsoft.ie (could point to MS’s Internet Explorer website).

McAffee checked sites on each TLD for Viruses, spyware and what they call “Potentially unwanted programs (PUPs). Overall, malware downloads decreased slightly in this last year. 2009 showed a 4.5% risk of downloads as opposed to 4.7% in 2008. Romania (.ro) topped the charts with 21% risk. .info had 17.2% risk for email malware.

Still, out of 27 million domains, only 5.8% had risk to them. It’s still up from 4.1% of 2007 and 2008, but McAffee did mention they changed their methodology to the report to show the 5.8%. They also mentioned that there are still “Hidden risks” out there that McAffee is determined to find.

So before you buy your next domain, check out the .pdf. It’s a pretty informative document on not only which top level domains are risky, but who your giving your money to. Did you know that .ly is the ccTLD (country code Top Level Domain) for Lybia? Did you also know that if you buy a .ly that you are helping the sponsor – General Post and Telecomunications Company?

Not to say it’s a bad thing, but it’s definitely something to think about.

Use of SETI = $1.2 Million?

Posted by susabelle at 11:39 AM on December 2, 2009

SETIAn Arizona school district information technology administrator is being investigated for misuse of campus computers because he installed and ran SETI software on up to 5,000 machines. The school district contends that this cost between “$1.2 and 1.6 million dollars over a 9 year period.” As I would have expected, quite a few people are giving that figure a wide-eyed look. SETI, a research project sponsored by some pretty big names (Sun Microsystems, Intel, and Fujitsu, to name a few), is intended to let ordinary computers search for extra-terrestrial life using already-existing idle time on computers all over the world. The tiny-footprinted program runs in the background on your PC and for the most part is unnoticeable, and rarely causes difficulty.

What strikes me odd about the story is not only that horrendously over-inflated “cost of operating” figure they are using to charge the man, but how the media is picking up on the SETI aspect of the story, without really telling the whole story. The IT Administrator, who has since resigned amid the probe, was warned several years ago about job performance that had nothing to do with SETI. And he was terminated (or resigned, depending on who you are talking to) for theft of equipment from campuses, abuse of purchasing oversight, not training his staff effectively, and downloading pornography. The use of SETI on campus equipment is a minor footnote compared to everything else that is coming out about this administrator and his activities on the campus.

But isn’t it much more fun for the media to sensationalize the somewhat marginal belief in UFO’s? The fact that he downloaded pornography, had no firewalls on the campus system, and spent the district’s money on unapproved hardware and software, is somehow not as prurient as his penchant for UFO hunting. I also find it ludicrous that the school district is claiming that over a million dollars was spent running SETI, rather than focusing on the real possibility that student and staff’s personal information was likely accessed because of the lack of security employed on the campus’s network by the administrator.

I’m not saying the guy didn’t show a distinct lack of judgment, I’m just not sure the SETI angle is all that important. It looks like they have much more to charge him with than that.

Google to Murdoch: Here’s a Piece of Rope. Have Fun!

Posted by susabelle at 9:13 AM on December 2, 2009

thumbs upToday, according to the Google Blog, Google is making some changes in the “First Click Free” way they have been indexing pages. Up until now, Google and publishers have worked together to allow Google to spider and index news sites, so that searchers can find it when they want it, but limiting the number of times or pages a searcher may see a particular news site (or link to other pages within the site), instead bringing up a registration/pay wall if the user wants more use. It’s all a bit complicated, but well-explained in the blog. Up until now, click-throughs on links inside news articles would progress normally; now, after five of these click-throughs, the user may encounter a registration or subscription page.

I think this is a really good move on Google’s part. Why? Because they’ve just handed Rupert Murdoch and others enough rope to hang themselves with. What do they think will happen with page rank when searchers can’t click through to articles anymore? The Google spider will stop at all such pages, dump them out of the indexing stream, and move on. This could effectively, and quickly, reduce the amount of news articles available to searchers, or put those news articles so far down the list that no one ever sees them. Google is essentially saying “go ahead, it’s your head on a platter, not ours.” If online news sources were already feeling the pinch of lowered ad revenues, what happens when their page rank drops, and the cost per ad view goes up because of it? Do they think advertisers will stick around for such little return on their investment?

Free news is not the problem. Plenty of news outlets are surviving (and thriving) by offering free news. What Murdoch and company hasn’t figured out is that the business model is changing, and that if they don’t change, they will die. And they will have been the source of their own demise.

Just Put the Installation/Recovery CD In the Box, Okay?

Posted by susabelle at 8:00 AM on December 2, 2009

cdA couple of days ago, a friend of my son’s called me with panic in her voice. Her fancy media-enabled Acer laptop had died. Kept booting into a recovery mode but then could not recover, so would shut down, only to do it all over again. I asked her if there were any CD’s or DVD’s that came with the computer, which is only about six months old.

“No, but there’s a booklet.”

I had her drop the laptop and booklet off at the house yesterday and last night I started it up to see what I could do. I could get to a dos prompt and was able to do some disk checking, enough to find out it didn’t seem to be a hardware issue. But beyond that, with the Windows recovery not functioning, and no CD or DVD installation disks, I was pretty much dead in the water to do anything else. I looked through the little manual that was shipped with the laptop. It has a section on safety (“never use your laptop in the rain or bathtub”), and a section on how to properly plug it in, plus sections on how to use the fancy media functions on the face of the laptop. But nothing about troubleshooting or recovery, other than a phone number for Acer and a website where I could buy (and have shipped to me in 2 weeks) a recovery CD.

Google is my friend, so I started plugging in keywords and phrases hoping to come up with something I could use to restore this machine. Forty-five minutes later, I had nothing but torrent sites and the same information: “reinstall from disk” or “use your backup recovery CD’s you made.” I also saw in multiple places that people who had made backup/recovery CD’s had coasters instead of working software once they got done, and this didn’t build much confidence – even if I had the recovery disks that should have been made when the machine was first used, it didn’t sound like they would have worked anyway. I had a Vista disk, but it wasn’t the right one (the laptop needed Vista Home Premium and all I have are Home Basic and Ultimate), and I was still hoping for a recovery rather than a complete start-from-scratch do-over. Plus, I wanted whatever proprietary software and drivers needed for the Acer, not just generic ones from the CD/DVD’s that I had on hand. What to do.

I changed search terms slightly and finally got a hit that was worth something. cnet to the rescue! Finally, I found instructions for accessing Acer’s recovery console on the sick laptop. All it took was a reboot, the alt key, and tapping the F10 key about 80 times, but I got into the console, and did a repair from there. Worked like a charm, and the laptop was back up and running in just under thirty minutes. Of course, that was after spending an hour searching for an answer. Had there just been the original CD/DVD’s in the box with the laptop to begin with, I would not have had to waste so much time.

How much money does it really save to print the CD and put it in the box? Really, is this an insurmountable issue? Makes me wonder if laptop makers (and desktop makers too, for that matter) are just more interested in selling you new hardware than allowing you to repair the ones you already have. After all, if my son’s friend had not had access to a geek-mom like me, she’d have probably just ended up buying another laptop. She was sure the machine was dead and unrecoverable.

Before I gave it back to her, I did go through the process of making Acer-specific recovery DVD’s. I don’t know how good they will be if/when I need them for another restore. My confidence in the Acer brand is not strong.

I have another laptop sitting at home waiting for me to repair it. This one is a Dell 1525, and it came with its CD/DVD’s. And its issue is hardware (has a bad hard drive), rather than software. I don’t anticipate any problems with restoration because I have the actual media that belongs to the laptop to begin with. That right there is a whole load off my mind.