As you watch Olympic diving, you may have wondered how the camera follows the divers every inch of the way from the platform to underwater. The answer is extremely old-fashioned: they drop the camera!

"Ideally," Rob Brear said the other day, "the diver and the camera drop at the same time." Mr. Brear, who is the DiveCam's chief dropper, was in Beijing's colossal "Water Cube," the National Aquatic Center, standing behind a plastic screen on a ledge built just below the diving tower's 10-meter platform. Between him and the platform, the DiveCam's pipe hung suspended by a chain from the roof.

Mr. Brear, a 54-year-old Australian, was warming up -- with the divers -- for the first platform events of the Games on Monday and Tuesday. "After the camera drops," he went on, "what you do is you pull it up again." Ken East, another Australian and Mr. Brear's teammate, sat behind him on a stool with his hand on the pulley's brake. "It's called gravity," he said.

There are some other factors. The camera operator has to drop it at the right time, and a bungee cord is used to keep the camera from smashing against the bottom of the pool. The Wall Street Journal has an interactive graphic that shows how the tracking works. Link -via Geek Like Me

The EcoJohn incinerating toilet uses no water at all!

The EcoJohn Sr. is a waterless, incinerating toilet certified for safety by Underwriters Laboratories, which, for classification purposes, called it a barbecue.

"Toilets haven't really changed for the past 100 years," Stefan Johansson said. "People are always looking for better products, better solutions. The EcoJohns are better, cleaner and good for the environment."

The unit can be installed at a site as a primary toilet or carted via trailers and used as portable toilets.

The toilets, one of several waste disposal products offered by the company, operate pretty much like the units found in homes across America today. But while those toilets use water to carry waste away, the EcoJohn Sr. is equipped with a propane-fueled burner.

After a user does his business, he closes the lid and a large, screw-like auger turns and carries the waste to the burn chamber where the propane burner then bakes urine, feces and paper into ashes.

The EcoJohn is useful for places where it is impractical to install a sewage system, such as vacation cabins, rooftop parties, and construction sites. But the question in everyone's mind is: why does it have to be classified as a barbecue?! Link -Thanks, Julie Anne!

(image credit: Mark Martinez/Orange County Register)

Bubble Tanks is a pleasant shoot-em-up game with soothing music. You are a bubble under the sea. Shoot bubble clusters to collect bubbles and grow, but avoid being shot! Link -via Buzzfeed

Sometimes when I take group pictures, I'll ask the kids to make funny faces for one photo, to loosen them up and give them a natural smile. The funny face pictures are often the best of them all! Dark Roasted Blend has a collection of pictures of funny faces, some intentional, some not, some not even human! Link

Emily Spivack began the blog Sentimental Value to preserve some of the more interesting stories that accompany clothing for sale on eBay. For example:

I just loved this dress. But the size that was on clearance was a small. Did I mention I’m not a small? Yeah, so I figured I’d just lose some weight and be a small, right? Ladies? Sound familiar? Can I get an Amen from the choir? Yeah, so I never wore it.

Some stories are funny, some are heartbreaking, and some make you doubt their truth. Link -Thanks, Jan!

Today's lunchtime quiz at mental_floss asks you to identify a quote: Did it come from The Wizard of Oz, the HBO series Oz, musician Ozzy Osbourne, or baseball manager Ozzie Guillen? I scored 50%, since I don't have HBO and don't follow baseball that closely -but I knew all my Wizard of Oz quotes! http://www.mentalfloss.com/blogs/archives/17449

This seems to be more of an art project than a telecommunications aid. Dial the published number, and an answering machine will relay your message to Telemegaphone Dale, which will amplify it and broadcast it over the hills of Norway.

Telemegaphone Dale stands seven metres tall on top of the Bergskletten mountain overlooking the idyllic Dalsfjord in Western Norway.

When you dial the Telemegaphone’s phone number the sound of your voice is projected out across the fjord, the valley and the village of Dale below.

There are no worries about an electrical outage, since the device is powered by wind. Only time will tell if the residents of Dale and the surrounding valley will put up with calls coming in from all time zones. http://www.unsworn.org/telemegaphone/ -Thanks, Sid Morrison!

(image credit: Magnus Torstensson)

Photoshop enthusiasts make existing Olympic events more exciting for the spectator at Worth1000. http://www.worth1000.com/contest.asp?contest_id=20627&display=photoshop#entries -via Geek Like Me

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For the first time ever, a woman has won the hog calling title at the Illinois State Fair. Doris Probst of Effingham, Illinois entered both contests at the 2008 Husband and Hog Calling Contest, but didn't place in the husband calling event. She beat out two previous winners to take the hog calling honor. Link

Japanese police say 20-year-old Masayuki Ishikawa was on a Tokyo street corner after midnight when he objected to strangers who stared at him. They were staring at him because he was wearing a Winnie-the-Pooh costume, accompanied by two other people dressed as a panther and a mouse.

Ishikawa and his friends beat up the two victims and stole $160 (84 pounds) from them, the spokesman said, adding the group had apparently donned the unusual garb because they had run out of clean clothes.

Link -via Arbroath

(image credit: Disney)

You think groceries are expensive where you are? In Ishikawa Prefecture, Japan, a bunch of grapes sold for 100,000 yen Monday. That's $920! The new variety Ruby Roman grapes are the size of ping pong balls and sell for an average of $248 a bunch. Link -Thanks, Jee!

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"Relativity" is an art project by Drzach & Suchy in which pictures are created using raised tabs. The art is revealed by the shadows of the tabs, and the picture changes depending on the direction of the light. This particular piece is called "Marilyn". Link -Thanks, Drzach & Suchy!

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This ad for United Airlines features lovely animated sea creatures performing Rhapsody in Blue. It was produced by the Barrie D'Rozario Murphy agency. Do yourself a favor and see the high-definition version here. -via Metafilter

Where is Bob? is a blog about one person, one subject.

We have a manager - Bob. Bob is incompetent, overweight, unattractive, uncouth, socially awkward, and generally, not a very nice person at all.

For a while, we were convinced that Bob had no redeeming qualities whatsoever. But then, something happened - Bob stopped showing up for work on a regular basis. Several times a week Bob would take a vacation day, a personal day, a sick day. Sometimes he wouldn’t even bother explaining his absence, acting as if spontaneous five-day weekends were simply the norm. And that is how everyone came to wonder - where is Bob? The question became perpetual in the office and among the other people at BPU with whom we work. And that is when I took up my current hobby - keeping chronicles of Bob’s strangeness at the office, and away from it. What is lacking in facts has been more than made up for with an overactive imagination.

This blog is about us, Bob, and the bizarre things that he does instead of coming to work.

It only took reading one post for me to be completely hooked. Whether Bob is real or not is beside the point; the stories are a hoot! And quite believable, because all of us have had a "Bob" in our past. Or maybe several. You might even have one in your present. Link -via reddit

When a person tastes victory, such as Michael Phelps winning the gold at the Olympics, he will raise his hands and puff out his chest. Apes and monkeys do this, too. And you don't even have to learn how to do it!

Scientists from the University of British Columbia and San Francisco State University looked at thousands of photographs of judo matches taken during the 2004 Summer Olympics and Paralympic Games in Athens, for such classic in-your-face victory moves as clenched fists, thrown-back heads and outstretched arms.

The images of the 140 blind and sighted athletes from 37 countries revealed that Paralympic athletes blind from birth struck the same triumphant stance as sighted Olympic athletes. Since the blind athletes could not have learned the victory dance by watching others, the scientists concluded that the behavior was innate.

They found that the dance was the same for all, regardless of what culture or country they came from.

The converse gestures of slumping shoulders and downcast face when experiencing a defeat is also innate.

Blind athletes across all cultures slumped their shoulders and narrowed their chests, a posture that signals shame in humans and submission in other primates. Sighted athletes from most parts of the world did the same.

However, athletes from some countries tend to hide their feelings of shame in defeat by putting on a brave or nonchalant front. Researchers speculate this is a learned response. Link -Thanks, Geekazoid!

(image credit: Mark J. Rebilas/U.S. Presswire)