If you have 3 apple pies and 19 people, how should you slice the pies so that each person gets an equal share? Each person should get 3/19 ≈ 0.1579 pies, but if you make each pie into 6 slices, that’s only 18 slices for 19 people. You have to slice each pie into 6 and 1/3 slices, with each slice being equal except the 1/3 being smaller, and then give the three 1/3 slices to the 19th person.

What if you have 1 pie and the Half-Blood Prince from Harry Potter and the Half-Blood Prince is the only person dining? Then you have 2 pies per person, assuming he’s half a person. In the expression 1/(1/2), move the denominator to the numerator and flip the ex-denominator, making the reciprocal and thereby converting division to multiplication. 1/(1/2) becomes 1*(2/1) which is just 2, because any number without a denominator has a denominator of 1.

Your neighbor lends you $8000 at 3.75% interest compounded annually, with no payments being required for 25 years and the full balance and interest being required to be repaid at that time. What is the payment? $8000*1.0375^25 ≈ $8000*2.5102 = $20,081.34.

What if you want to make a graph of the increasing amount owed on the Cartesian coordinate system where y is the number of years and x is the dollar amount in thousands? Use the equation y = 8*(1.0375^x).

PROBLEM: Your truck gets 15 miles per gallon in the city and 19 mpg on the highway. Your destination is 38 miles away as the crow flies, 42 miles away through the cities, and 49 miles away if you take Interstate-95. However, taking the interstate requires 5 miles of city driving. How many gallons of gas will be used on each route, which one uses the least gas, and how …

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I use the WordPress plugin Exec-PHP to use PHP in my posts, but under normal circumstances if I do this with “WordPress should correct invalidly nested XHTML automatically” (a.k.a. tag balancing) checked in Settings > Writing, I get this nasty error whenever I try to use PHP:

Parse error: syntax error, unexpected ‘?’ in /home/thripp/public_html/wp-content/plugins/exec-php/includes/runtime.php(42) : eval()’d code on line 1

The solution the developer provides is to simply disable that feature. That’s fine most of the time, but I encountered a tricky situation where I needed to use PHP and have WordPress close open HTML tags which I simply could not close.

My posts on this blog are usually photos with short descriptions, but occasionally I write long articles which may go on for thousands of words. Up until last year, my tag, category, and archive pages displayed the full content of my posts. WordPress excerpts were unacceptable for two reasons: 1.) they are always 55 words; 2.) I use Post Thumb Revisited to auto-convert 800×600 images to 400×300 thumbnails, but it only converts them through the_content filter, not the_excerpt. While the excerpt length is customizable in WP 2.8 or newer, I am unwilling to upgrade from WPMU 2.7. What I really needed was an excerpt that used the_content, respected all HTML tags, worked with Exec-PHP, and let me customize the excerpt length.

Enter The Excerpt Reloaded. The plugin was 5 years old, so I found an updated version with bugfixes that was only 3 years old. I quickly wrote this code for my theme’s index.php file and left it this way until today:

if(is_category() || is_archive()) the_excerpt_reloaded(200, ‘all’, ‘content’,
     true, “<strong>… continue reading</strong>”, false, 1, false, false,
     ’p’, ‘Click to see whole entry.’, true);
else the_content(__(’… CONTINUE READING’));

This has been the best of both worlds. It cuts off the …

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On 2009-09-30 I shot some studio portraits for my friend Anita Cohen at Daytona State College, of her pregnant daughter Jacquelyn and her daughter’s husband Shaughn. Even though I’ve been a photographer since I was 13 (5 years), this was my first time working formally. Thanks to Prof. Joe Vance for letting me use the photography studio at Daytona State College even though I’m not in the photography program (I’m a computer science student).

Jacquelyn is due to have Shaughn Brady Jr. at the beginning of Nov. 2009. Sadly, Shaughn has to return to Iraq for his second tour in Apr. 2010, so he’ll miss his son’s growth from the age of five months to over a year. Here, he is wearing his camouflaged U.S. Army uniform. He’s a driver rather than front-line infantry. I hope he stays safe and doesn’t have to kill anyone.

We had a white background. Anita helped me figure out how to set up the hot lights and deflectors. I used one incandescent light (warm a.k.a. yellowish) on the left and one fluorescent light (cool a.k.a. bluish) on the right, which worked well. While some maternity photographers exaggerate the size of the woman’s belly or emphasize deep, brooding poses, I did not do that here. I prefer realistic, upbeat portraits showing love and joy.

Shaughn kissing his wife’s belly. I wasn’t sure about Jacquelyn’s facial expression, but I think Shaughn’s outfit balances the discipline of the army with the love he has for his wife and first son.

The only portrait of Jacquelyn and Shaughn I used the flash on. This is a conventional rather than artistic portrait, but portraiture is about the people in the portraits, and not necessarily innovation of …

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My Mom just sent me this question:

Dear Son,
My coworker Mark asked me if you have any good suggestions on laserjet printers. His printer at home ran out of ink and he doesn’t want an ink jet. If you know of any good deals out there, could you let him or me know?

Thanks.
Love, Mama

My answer:

Dear Mom,

I used to recommend Lexmark and HP, but I no longer recommend them because they gouge on toner in their low-end laser printers. I now recommend BROTHER.

I have a Brother HL-2140 and I like it. I paid $50 on sale (OfficeMax)… it’s $80 on Amazon now. Watch for a sale. It prints fast and clean. While it doesn’t duplex, you can just put pages face up, top toward you to print on both sides manually. I’m still on the starter cartridge (1000 pages) but you can order third-party replacement cartridges online for $30 shipped (refilled), which print 2600 pages. Much cheaper than new Lexmarks which have no refilled cartridges… $100 a cartridge with them. Brother is usually cheaper.

If he orders it have him order through this link: http://www.amazon.com/exec/obidos/ASIN/B0010Z1W06/brilliaphotog-20

Then I get 4% ($3.20) and it costs him the same. That link puts an Amazon tracking cookie on your computer… I get a 4% commission on anything you order within 24 hours as long as you don’t delete your cookies.

Black and white (monochrome) laser printers are the de facto standard for printing text and documents. They use them exclusively at my college. Inkjets don’t even compare. Laser printing is one-tenth the cost of inkjet and the text quality is better. It’s also much faster… I can print a 20-page document in under a minute.

The HL-2140 is really for 8.5*11 paper… I think it’s not good with envelopes or other sizes.

Love, your son,
Richard

I haven’t printed a document …

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• Make sure everyone is smiling and pretending to be happy before taking the picture. Candid photography? Never heard of it.

• Don’t take photos of people; they don’t want you to take their photos anyway. Just stick to rocks and plants.

• Make your rocks blurry and your flowers over-exposed. Then claim it’s art.

• Pump up the saturation and contrast on that rose, so it’s just (255,0,0) all over. Then everyone will appreciate the beauty.

• Print your photos, then scan the prints at 600 pixels per inch. Now you have 48 megapixels!

• Never switch from auto mode. Only scary people use aperture priority. Manual mode is for the fully insane.

• Or, switch to manual mode, and refuse to use auto-focus. The camera doesn’t know how to focus. It’s just blocking your artistic vision.

• Always talk about your artistic vision, and the wonderful community of photographers your a part of. Maybe people will start believing it.

• Say a 12 megapixel camera is 20% better than a 10 megapixel camera.

• Buy a $2000 DSLR, then stick a cheap lens on it.

• Set your new $2000 camera down to go to the bathroom. Follow the advice in 10 Ways to Get Your Camera Stolen. Why would anyone want a camera?

• Refuse to use anything but a prime lens. Those zoom lenses are too modern and convenient. They’re not sharp enough either. It’s settled. You’re not a real photographer if you use a zoom lens.

• Constantly talk about “real photographers” versus the non-real photographers that are pervading your art form. Make sure some reference to film vs. digital is included.

• Say that film is useless, because digital is magical and does everything.

• Say that digital is useless, because film is the only true photographic medium.

• Assume you should always keep your camera zoomed out, …

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The five chapters in your adventure:

1. an introduction to stock photography
2. taking the photos
3. nitty-gritty editing
4. how to pitch a model release
5. building effective keywords

Stock photography is not art photography. If you’re looking to express your creative spirit while making a comfortable living, this is not the place for you. You can do the latter with work, but not the former, because stock images are boring as salt.

Curiously, the best stock photos are interesting. Crafting a photo that is not boring yet appeals to advertisers is a lot harder than creating a whole bunch of boring photos and making it on volume. I don’t know how to do the interesting, successful ones, but they usually involve people shaking hands or flying kites at the beach. In this article, I’ll be introducing you to the technical details that will help you to create boring stock photos. Then you can move up to better ones later. If you don’t learn these basics, your great ones will look slightly imperfect and won’t sell (read: won’t be accepted by your microstock agency), which we can’t have.

Most people elbowing their way into the stock world start with the microstock networks, because they’re the only shot for an average Joe to make any sort of money. Ones like iStockphoto, Shutterstock, fotolia, and Big Stock Photo. These websites let up upload your photos, which they then sell to their customers, taking much of the profits but giving you a commission (something like twenty-five cents per sale). They’ll only take stuff they think will sell, and only if the image is “perfect”: grain-free and plastic looking, six or more megapixels, no artifacts (if you have a cheap camera, this is …

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After weeks of threatening skies that produced nothing, we’re finally getting some rain in Daytona Beach, Florida (Ormond Beach actually, but they’re close). I was drenched on the way to school yesterday, and we just had quite a cloudburst at my house. Here are two photos:

One thing that you’ll find when it’s raining a lot… is that it’s hard to get a good picture! First, it’s very dark out, so motion blur becomes a big problem. Second, you’ll take lots of photos where it looks like nothing is happening! (I always do.) Just a bit of fog or a gloomy sky, instead of the big raindrops and howling winds that your eyes see.

You can only really show the wind with a motion blur shot of trees, or if there’s a tornado or tons of mist flying about. You get photos with no rain because it takes a fast shutter speed to show it, which you can’t use in the dark normally (try upping the ISO sensitivity and using a smaller f number). But I have some other tips to capture the mood:

• Over-ride the auto-metering by stopping down a bit. When you want a dark scene, the camera doesn’t know and will make everything look bright and cheery. You have to fix that yourself.

• Show puddles, big puddles. Or the raindrops hitting those puddles. Use as fast a shutter speed you can, or a slow one showing the blur of turbulent water.

• Get a shot of raindrops falling. This works best if it’s still raining and the sun has come out, because there’s plenty of light and you can easily use a fast shutter speed, like 1/2000 of a second.

• Show raindrops on a window with a dark sky …

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There’s one technique that I’ve found useful, when you’re waiting for the perfect photography moment, to never miss it.

Snap so many shots, you can’t miss.

You’re bound to get a good shot of those falling raindrops if you take 50 photos instead of one. Now, there are a few pre-requisites. First, you have to have the shot well composed. The shutter speed must be adequate, and the exposure dead center. If you mess up this, you’ll just end up with 50 bad shots instead of one. Focus can be a problem, because the camera may change itself automatically between shots. Switch to manual focus once you’re locked in if possible, or keep your eyes peeled for blurriness through the viewfinder or on the LCD screen.

If you’re working with a digital compact, switch to burst or continuous shooting mode first. With a DSLR, you can just click away. Here’s an example of what I shot yesterday of raindrops on my front porch:

Click to enlarge, and you can see I took no fewer than 35 distinct photos. All in a period of two minutes. But for something as chaotic as falling water, you need to do this to get the perfect moment. The masters in film photography did it despite the terrible expense, but the cost is nothing besides wear and tear on your camera in the digital age. You can delete all but the best afterward, but you won’t even get the best unless you shoot ten times more than what a normal person would.

As you can see above, my favorite was the second one. So why didn’t I just stop then? Because I had no idea what would come afterward. I just parked myself in the same space, and kept clicking away, because who knows what …

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Photos in print are much harder to brand than photos on your website. If your printing in any great quantity, the tedious process of writing out your name, website, and other pertinent information on the flip side becomes insurmountable. Secondly, most photographic papers have a resin-coated backing, which stubbornly refuses any water-based inks. My methods in this article are aimed toward unframed 4*6 prints, as that’s what I deal with myself, but they can be easily applied to other formats. In fact, the fundamentals of permanence at the end are essential to any print medium.

Whether your printing photos for your friends, family, art, or business, it is doubtless that any copies floating about can make convincing advertisements. Your very livelihood is at stake; what can you do to make sure that everyone knows that you are the creator of those photographic masterpieces? Luckily, you do have options.

1. Put your name right on the front of the print, straight from the digital source files. This is an easy way to demarcate your work; you don’t have to deal with any hand writing or messy backprinting. Unfortunately, it’s a bit distracting, and anything more than the title and your name is pushing it; include your website and the text will get more attention than the photo. Plus, if you’re going to put the info anywhere, it’ll have to be at the edge of the print, perhaps in a border surrounding the image. You’re going to have to deal with the bleed edge, and it’s a pain because what looks fine on the screen will often get cut off in a borderless print. This becomes especially important if you’re out-sourcing to …

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I was looking for ways to optimize my website . . . to make it quicker and easier for me to maintain and update, while being fun to browse for my visitors. The problem with the old gallery and random photos at the top of each page, was that I had to make the thumbnails and update the page and database for both (I was using the this randomizer plugin for Wordpress), each time I added a photo. It was good because I’d crop, scale down, and sharpen each image to look its best, but the extra work was too much. I found the Post Thumb plugin is the perfect solution. I installed it, set it to make 100×70 thumbnails, and then added this code to my blog header:

<?php the_random_thumb(”link=p&limit=5&category=8″); >

That makes it show five random photos from the category for my photos, linking to the page for each instead of the file. The great thing here is that the thumbnail folder and accompanying MySQL table is updated automatically, so photos are added to the pool as soon as I publish them. A random photos section is good for the casual browser, who just looks at what catches his eye.

Next, I wanted to create a dynamic gallery and random image page. I added the Exec-PHP plugin so I could use PHP code in pages and posts, but found that Wordpress inserts a line break between each thumbnail, against my wishes. For that, I added this modified version of Text Control by Jeff Minard, then setting it to not auto-format the gallery and random pages.

The code for page one of the gallery is:

<?php the_recent_thumbs(”subfolder=g&width=200&height=160&link=p&limit=60&category=8″); ?>

and for page two:

<?php the_recent_thumbs(”subfolder=g&width=200&height=160&link=p&limit=60&offset=60&category=8″); ?>

The