Posted on December 31st, 2012 2 comments
I am often amazed at how some websites don’t manage to update the copyright notice at the bottom of the page to the current year. As I write this, I have hundreds of pages that have a copyright notice and in about 12 hours from now (since today is December 31st), they will automatically update to the year 2013 without me having to do anything. I noticed that when a new year arrives that for several months many websites will have the latest copyright date set to last year, and in some cases, they can be years out of date. When I see that, it makes me feel that someone is asleep at the switch.
Google uses more than 200 ‘signals’ to measure the influence of a page, and it would surprise me if they didn’t include the latest date in a copyright notice as something that might be of interest. Fresh content is king, and stale content is like two-day old bread and that’s why the bots never stop crawling your content. But to see a copyright that is years out of date on content that has obviously been updated today, well, it makes the site owner look like he’s just not paying attention to the details.
So, how does my copyright update without my intervention? Well all of my pages are sent through a PHP parser, and my copyright notice has this little snippet of PHP code:
Copyright © 2001-<?php echo date(Y); ?> Lee Devlin
When it’s run through the PHP parser and rendered on a browser, it translates to:
Copyright © 2001-2014 Lee Devlin
I have that code in all my footers, both on my WordPress and static pages, and it updates the second date every year, without me having to think about it.
If you want to edit your footer, WP themes generally keep the code in a file called footer.php in the wp-content folder. Feel free to copy that code into your footer, you have my permission. Just remember to change it to your name ;-).
Posted on November 14th, 2012 72 comments
I’ve been hearing an ad on the radio lately about a discovery that the power company doesn’t want you to know about from a guy named Frank Bates. He mentions that he could get in a lot of trouble for talking about it and calls the power companies and the government “incompetent, lying crooks who are counting on your ignorance and fear to keep your electric bills and heating bills criminally high.” OK, I’m intrigued, so what’s this guy selling?
He wants to show you the secret of how he beat ‘em, and how you can beat ‘em too. It’s described as a “weird” trick on the website. It sounds almost too good to be true. You can hear the commercial along with a video at the Power4Patriots website.
Upon looking further into what Mr. Bates is selling, I discovered it’s a CDROM and downloadable access to a series of pdf ebooks (about 300 pages total) and videos covering the topics of solar and wind energy. Much of it involves DIY information on how to build your own solar panels, wind turbines, and solar water heaters from components you can find in local hardware stores and online for less than you can buy equivalent off-the-shelf products. The value of this ‘package’ is $297, but with the 90% discount, the CD and downloads can be yours for only $27 + 2.99 S&H. After purchasing it, you’ll find that if you pay $67 more, you get a physical spiral bound book along with 3 DVDs that also cover solar and wind DIY projects which is basically the same material, just in a format that might be more convenient for you. If you turn that down, you’ll be offered the printed book for another $27. After that, you’ll be offered heirloom seeds for another $67 to help you through any upcoming societal collapse. So there’s a lot of upselling going on after the initial $27 investment. I’m also now on the email list and I suspect I’ll be hearing a lot more from the company in the future.
How do I know this? I know this because I invested the $29.99 in the ebook/CDROM product. After all, what kind of blogger would review a product he didn’t own? I gotta tell you, this guy’s good. I’m surprised I got out without spending another $134 for the physical book/DVDs and heirloom seeds.
You’d have to be living under a rock if you haven’t heard all the fuss about how Chinese solar panels are coming down in price so fast that they are putting companies out of business that were trying to manufacture solar panels in the U.S. Witness what happened with Solyndra and Abound Solar.
One of the ebooks and 6 of the videos are related to making your own solar panels. I was curious to see just how cheap these homemade panels would be and the book shows a bill of materials of $175 for a 65 watt panel. That’s almost $3/watt not including your labor, and the amount of labor looks quite substantial. I’d estimate the labor at 10 hours per panel or more. That’s not cheap, especially now that you can get manufactured panels that are $1/watt that are already assembled and guaranteed. The manufactured panels are designed to last 25 years, are safety agency-approved, and can withstand all kinds of weather, including hail up to 1 inch in diameter. So trying to roll your own solar panels would be a waste of time and money. And the cost of a solar system doesn’t just depend just on the panel cost. The inverter costs about $.50/watt which is quite expensive in the grand scheme of things, or about half of what you’d be paying for the panels.
And then there’s the installation cost. Of course, you can do the installation yourself if you’re capable and comfortable working on roofs. Once you add in the other ancillary parts and equipment, you can put together a solar system for about $2/watt these days using off-the-shelf components. That’s about half of what they cost just 4 years ago, thanks primarily to the drop in panel costs.
A typical house in the U.S. uses about 730 kWh in electricity per month. To satisfy this need, you are looking at approximately a 5 kW system. That system would cost about $10,000 for materials even if you’re handy and can do the installation yourself. With U.S. electricity rates now at an average at $.12/kWh, it would take about 10 years to pay for itself. That’s not too bad, considering most things you buy for your home will just depreciate over time and not save you a dime, let alone break even or start making you money in the long run. My grid-tied solar system is 5.6 kW and I haven’t purchased any electricity since it was installed nearly 4 years ago but I do get charged about $8/month to be connected to the grid. I have accumulated a surplus (about 5000 KWh) on the meter that could run an electric car for more than 20,000 miles.
The radio commercials imply that you could slash your energy bills and live free of these greedy utility companies but you cannot do that if you install a grid-tied solar system with net metering, which is the most common kind. To disconnect from your utility company, you’d need to have a battery storage system, a charge controller, and a backup generator for those times that you may have a few cloudy days in a row. A set of batteries that would hold a day’s charge of 24 kWh would cost at least another $4K and generator would add another $1K to it. So you’re looking at a much bigger expense when you talk about completely disconnecting from the power grid, I’d say at least $5K more. And those batteries would need to be replaced every 6 years or so. That makes the whole payback period kind of a moot point because of this extra recurring expense so unless you live in an area where there is no grid power, or you believe we are on the verge of complete societal collapse, it’s hard to justify an off-grid system when you can get away with the less expensive grid-tied solar system.
There are some other books included in the package related to making and installing a wind turbine (probably good for 5-10% of the average household energy needs), and some simple solar hot water and solar hot air DIY projects. Bonus materials include ebooks on surviving disasters, storing emergency water, and building a solar cooker.
So for $27, you get 10 ebooks all of which contain some useful information, especially if you’re into renewable energy or worrying about Armageddon. I didn’t feel ripped off afterwards, although the quality of some of the graphic images in the pdf files was pretty poor. I don’t know what the printed materials might look like, but the numbers on many of the charts were unreadable like the image shown below.
I’m always intrigued when I hear an over-the-top advertisement for an energy product. Most of the time they turn out to be truly worthless and horrible investments. But this one is harmless enough, and you might even find a few good ideas for your $27. But don’t get your hopes up that you’ll take your electric and heating bills down to nothing without a significant investment in time and money even if you follow all of the DIY information in the ebooks.
Posted on September 27th, 2012 No comments
I teach computer science at our local community college’s Computer Information Systems department. Over the past few years, I’ve taught classes and tutored students in the areas of object oriented computer programming, advanced web design, and management of information systems. I also do consulting in web applications, which usually involves PHP programming, ecommerce, and Content Management Systems (CMS) like Magento and WordPress. Periodically, people ask me what they need to know to be a web designer these days. They may have had a passing familiarity with HTML from some web pages they created a decade ago, but web design has changed a lot since then and they want to wrap their minds around what it requires today to work in web technology. To be an effective web designer today, it is necessary to master what I call the 5 pillars of modern web design.
When the world wide web was introduced back in the early 1990s, it was based on HyperText Markup Language (HTML), and it was simple. I recall back then you could learn web design by using the ‘show source’ feature of the browser to see how a page was constructed. Everything you needed to know was right there in a single page. HTML is the first pillar of web design, you must understand HTML to do anything with web pages. However, if HTML is all you know, the pages you create will look like they’re straight out of the 1990s.
Shortly after HTML was invented, a styling language known as CSS (Cascading Styling Sheets) was developed which took the appearance of the page and separated it from the content. Although having a separate styling language complicated things, it was for the best because you could change the way a page appeared simply by changing a few values in the CSS. However, CSS isn’t so easy to learn by inspection. In fact, there are things about the way CSS works that can make it quite complicated. I consider CSS to be the second pillar of web design.
4. Server Side Scripting
The fifth pillar of web design is the database. Just about all advanced websites today have migrated to some form of a database-backed content management system (CMS). There are many CMSs to choose from, but what they all have in common is that they rely on dynamic calls to the database to get the data they need to render the pages. This means the web designer needs to understand how to interact with databases and have a good understanding of SQL (Structured Query Language).
Even if you master these 5 pillars, you’ll need a few more skills to put together attractive websites. For example, you still need to know about graphics design and how to edit images so that they look good and load fast on a web page. Knowing about typography, color schemes, and other artistic concerns are also very important so that your website doesn’t scare people away and for that, you may need to rely on an expert in that field.
Now I know there are some who might argue that with modern Content Management Systems such as WordPress, much of the work is done for you and you can be a web designer without having to know anything about databases, scripting languages, CSS or HTML. That may be the case for some websites. You can learn WordPress in just a few hours using the WordPress Starter guide eBook by Lisa Irby shown in the adjacent ad. It’s a great resource to get you up and running quickly. After that, I highly recommend visiting Lisa’s site to learn lots of tips and tricks for creating websites. And if you ever find yourself lost, there are always experts available who who understand how all this stuff works who will help you for some reasonable fee, but you should make sure that they know the 5 pillars of website design before hiring them.
Posted on May 21st, 2012 1 comment
A few months ago, my friend Don showed me a picture he had of himself as a young boy along with his younger sister and older brother. Don will turn 80 this year and it appears he was about 5 in the photo, so it was about 75 years old. The photo had some damage from creases, missing areas, and a few dark spots and he wanted to get it restored but didn’t want to let go of the original since it was irreplaceable. He had an photo scanner sitting next to his computer, so I scanned in the original and emailed it to Jay Yozviak at Photography by Jay, who is the premier photographer in Northeastern Pennsylvania. I figured he’d know of a reliable service where the photo could be sent and restored to remove the defects it had accumulated over its 75 year life. You can see an image of the original photo here (you can click on images for higher resolutions versions of them):
I know that Jay is very capable with PhotoShop but didn’t realize that he also does photo restoration as part of his photography business. In a few days, Jay had restored the image and sent back the results. My friend was extremely pleased with how it turned out. As you can see below, the defects are gone.
He also made up a framed version of the image in black-and-white:
If you’d like to get a quote on getting your irreplaceable photos restored to their original condition, you can contact Jay at:
Photography by JAY
284 Dennison Street
Swoyersville, PA 18704
If you’re curious how photo restoration is done, here’s a time-lapsed video of someone doing it on YouTube. The video is only a few minutes, but it shows about 6 hours of work: