An Evolutionary Timeline of Homo Sapiens - Smithsonian Magazine
WebFeb 2, 2021 · These five skulls, which range from an approximately 2.5-million-year-old Australopithecus africanus on the left to an approximately 4,800-year-old Homo sapiens on the right, show changes in the ...
Seven Surprising Facts About the Matterhorn - Smithsonian …
WebMar 9, 2016 · Dominic Steinmann/epa/Corbis. On July 14, 1865, a seven-member team of climbers made the first ascent to the top of the Matterhorn using ropes woven out of manila hemp, but only three lived to ...
A Brief History of Solar Panels - Smithsonian Magazine
WebA few decades later, French mathematician Augustin Mouchot was inspired by the physicist’s work. He began registering patents for solar-powered engines in the 1860s. From France to the U.S ...
How Physics Keeps Figure Skaters Gracefully Aloft
WebFeb 7, 2018 · In order to jump higher, skaters might build strength, which could cause them to gain muscle mass. That extra mass could further increase their moment of inertia, slowing them down in the air ...
Here’s How Scientists Reconstruct Earth’s Past Climates
WebMar 23, 2018 · Scientists apply different methods to the geologic record with the goal of better understanding and quantifying ancient Earth's temperatures.
Was the Navy’s F-111 Really That Bad? - Smithsonian Magazine
WebThe F-111B was designed to defend the fleet, but only one landed aboard an aircraft carrier, the Coral Sea, in 1968, after the program was cancelled. The controversy swirling around the F-35 joint ...
New Artificial Spider Silk: Stronger Than Steel and 98 Percent Water
WebJul 26, 2017 · The silk of the humble spider has some pretty impressive properties. It’s one of the sturdiest materials found in nature, stronger than steel and tougher than Kevlar.It can be stretched several ...
A 42,000-Year-Old Man Finally Goes Home - Smithsonian Magazine
WebThe next surprise came when carbon dating put “Mungo Man” at 40,000 to 42,000 years old—some 5,000 years older than the Cro-Magnon sites in Western Europe. The researchers retested Mungo ...
How Posters Helped Shape America and Change the World
WebMay 22, 2012 · Introduction. (Paul Fusco / Magnum Photos) For at least 80 years, posters have been a powerful lever in America’s tool kit for social change. Though no single poster changed national policy ...
A Brief History of the Stoplight - Smithsonian Magazine
WebA newsboy’s stand and traffic light in Los Angeles, 1942 Library of Congress. In a century the traffic light went from a contraption that only an engineer could love to a pervasive feature of ...
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