Category Archives: Swimming

Endocrine Pollutants Spike in U.S. Rivers During Low-Flow Periods

The Santa Cruz River just north of Sahuarita, Arizona. Photo by $1LENCE D00600D.

The pipeline leak that spilled sewage into Arizona’s Santa Cruz River is sealed, but another pollution problem persists — one many other American waterways share.

Contaminants of emerging concern, or CECs, are chemicals from drugs and personal care products that most wastewater treatment plants don’t filter out. Some, including estrogenic compounds from products like synthetic birth control, disrupt the hormones of aquatic wildlife, harming reproduction.

Read/listen to my full story at KJZZ’s Arizona Science Desk:
U.S. Streams Like Santa Cruz River See High Endocrine Pollutant Concentrations During Low-Flow

Competitive swimsuits get a good ribbing from NASA

NASA spin-off technologies find their way into our lives in unexpected ways. Shock-absorbing memory squeezed its way into Tempur-Pedic mattresses, football helmet padding, shoe insoles, hospital beds, prosthetics, cars, amusement parks and modern art, while an invention designed to decrease airplane drag made a huge splash in the competitive swimming arena. Find out how as I answer the question…

Why did NASA invent the ribbed swimsuit?

Two parts heart and one part obsession

When you come right down to it, humans are lousy at swimming. It’s not our fault—it’s simply fluid dynamics at work: The more fluid we’re in, the less dynamic we are. That’s why it’s so amazing to watch a practiced swimmer glide through water. How do they do it? It’s more than physical fitness: Their technique is nearly flawless. In this article, I’ll show you how a few minor adjustments can pay big dividends in terms of speed, power and energy expenditure in the water.

How to increase your swimming speed