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.
The rumor that water in public swimming pools is treated with a chemical that turns urine purple or red is tailor-made for kids, to whom any embarrassment-based technology sounds plausible, especially coming from adults.
Read on to find out if this story holds water, or if it’s all wet.
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?
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.