Category Archives: How To

Like a Bridge Under Troubled Waters

A partially disassembled tunnel boring machine (TBM)
A partially disassembled tunnel boring machine (TBM). Photo by Mike.

Between the years of 1825 and 1843 , through floods and financial failures, Marc Isambard Brunel and his son dug a tunnel under London’s Thames River. Our ambitions have grown since then, but the technology we use still bears a striking resemblance to Brunel’s shipworm-inspired device.

In this article, I look at some of the worlds most breathtaking underwater tunnels and delve into how they were constructed.

How do you build an underwater tunnel?

The Art of the Bunt: Deconstructing Dickey’s “Tricky Hit”

Aki Iwamura lays down a bunt. Photo by imagesbyferg.

Bunting, says Bill James of Sabermetrics fame, is “the only play in baseball that both sides applaud.” But years ago, every player – even sluggers like Babe Ruth and Mickey Mantle – used bunting as a fundamental part of the game, and some coaches still prefer the bankable bunt when it comes to advancing runners, especially when a weak hitter steps to the plate.

Whatever your viewpoint, there’s little doubt that bunting is an art. Read on for the ins-and-outs of this venerable and controversial technique.

How Bunting Works

Hobbled Horses Under the Hood – and How to Get Them Running Again

Well, there’s your problem. Photo by Leo-setä.

Does it feel like lately your car has exchanged horsepower for hamster power? If so, you might have a power problem, but good luck nailing it down; the same intricate fuel systems that mostly conquered vapor lock also introduced a slew of failure points, and pinpointing which one is responsible can try the patience of a shade-tree saint.

 Thankfully, there are some clear signs to look for, so get the banana out of your tailpipe and read…

5 Signs Your Engine Is Losing Power

How It’s Made: Crystal Edition

Photo by Alexander Van Driessche (note human for scale)

In physics, the term “crystal” designates a solid substance with internal symmetry and a related, regular surface pattern. But such a dry description cannot capture the intricacy and variety of materials found in snowflakes and crown jewels, or that power stereos and ultrasound machines, or that flavor our food. Nor can it convey the delicate dance of temperature, pressure and time that crystal growth requires.

Historically, growing crystals was as much art as science. Today, it requires precise technologies and technologies to control growth, often on a molecular scale.

How are crystals made?

Fecal transplants: One man’s trash…

C. diff photo
Scanning electron micrograph of C. diff, courtesy CDC

Accepting a transplant of someone else’s stool might sound extreme, but it might just be the next big thing in medicine, thanks in part to a potentially deadly stomach bug called Clostridium difficile.

C. diff, an emerging epidemic in hospitals and nursing homes that tears through the gut like Sherman through Georgia, has grown increasingly virulent and antibiotic-resistant in recent years. For many sufferers, fecal microbiota transplantation offers hope when all else fails. Can we get over the “ick factor” when our lives are on the line? You bet we can.

How Fecal Transplants Work