Faced with a booming population and a disappearing water supply, the city of San Antonio responded by dramatically cutting consumption, pioneering new storage techniques and investing in water recycling and desalination projects. It now boasts that it is "Water's Most Resourceful City."
There are so many programs and projects that Chuck Ahrens of Water Resources and Conservation with the San Antonio Water System can hardly keep track.
Originally published on Thu August 9, 2012 2:30 pm
Fossils discovered in East Africa suggest that Homo erectus, the species believed to be humans' direct ancestor, may have shared Earth with two genetically distinct but similar species. Some paleontologists believe that these species may be distant relatives to modern humans, while others need more evidence.
The Olympic Games seem to celebrate the extremes of athletic physique — from tiny gymnasts to impossibly huge shot-putters. But why are they shaped that way?
We've put together an infographic that explores how athletes' bodies have changed over the last century, and the role physics plays in each event. Here on Shots, we're taking a look at some of the athletes featured in the graphic.
Originally published on Fri August 30, 2013 1:57 pm
Credit Adam Cole / NPR
Olympians from the 1912 games seem a bit shorter, a bit scrawnier, a bit more ... average. Over the past century, elite athletes' bodies have changed a lot, and this evolution has been propelled by the laws of physics.
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Check out some of the world's most important - and threatened - aquifers. <a href="http://media.npr.org/assets/img/2012/08/08/aquifers_archive.jpg">Click to see a high-resolution version of this map.</a>
This map is disturbing, once you understand it. It's a new attempt to visualize an old problem — the shrinking of underground water reserves, in most cases because farmers are pumping out water to irrigate their crops.
Yes, it was an amazing landing, an engineering triumph, a 150-million-mile slam dunk, spectacular in every way, except ... I think my grandpa would be disappointed. I'm not sure of this, since he died 50 years ago, but I have a hunch.
It starts with a handwritten letter he wrote back in 1907. He was a travelling salesman. He sold men's hats, and his job was to visit retailers all over the country. "One evening," he wrote, "train riding between Chicago and Kansas City or St. Louis, sitting the club car, I read a magazine, The Century..."
A copy of Philosphiae Naturalis Principia Mathematica by Sir Isaac Newton at the Science Museum Library and Archives in Swindon, England.
Credit Daniel Berehulak / Getty Images
Can we make sense of the world without belief? This is the central question behind the faith and science dichotomy, and one that informs how an individual chooses to relate to the world. Contrasting mythic and scientific explanations of reality, we could say that at the extreme, religious myths attempt to explain the unknown with the unknowable, while science attempts to explain the unknown with the knowable. Much of the tension springs from the belief that there are two mutually inconsistent realities, one within this world (and thus knowable) and one without (and thus unknowable).
Originally published on Thu August 9, 2012 10:44 am
Credit Ayodha Ouditt / NPR
Shiny glass buildings are a hallmark of modern architecture, but for birds, that shimmer can be deadly. Every year, an estimated 100 million to 1 billion birds die by flying into glass windows. By studying how birds interact with buildings, architects and ornithologists are trying to create special features designed to keep birds alive.
Below, click around to see architectural features that can make buildings safer for birds — or more deadly.