The only remaining laboratory of one of the greatest American inventors may soon be purchased so that it can be turned into a museum, thanks to an Internet campaign that raised nearly a million dollars in about a week.
The lab was called Wardenclyffe, and it was built by Nikola Tesla, a wizard of electrical engineering whose power systems lit up the Chicago World's Fair in 1893 and harnessed the mighty Niagara Falls.
As far as portraits from the Civil War go, this one is quite famous. It shows a confederate soldier looking a bit disheveled and very serious while holding an 1855 Springfield single-shot pistol carbine.
Hand-run printing presses like these in 1909 produced 45 sheets an hour, while today's automated machines churn out 10,000 in the same amount of time. "This was considered the toughest job at the time," said Franklin Noll, a historical consultant at the U.S. Bureau of Engraving and Printing. "You had to work as fast as you could all the time on a rate where you only got paid for the good sheets."
Credit Library of Congress
Every day, tens of millions of crisp, green bills roll off fast, automated presses at the U.S. Bureau of Printing and Engraving.
A hundred years ago, the process looked very, very different. Back then, it took the bureau a year to make as many bills as it can now make in two days.
These beautiful, old photographs from the Library of Congress were taken near the turn of the 20th century. They show a time when making currency was a slow, hands-on process.
A photo from <a href="http://news.nationalgeographic.com/news/2012/08/pictures/120813-mummies-chinchorro-proceedings-desert-driest-chile/">a recent National Geographic story</a> shows a long-buried corpse, preserved by one of Earth's driest climates, Chile's Atacama Desert, where it has retained centuries-old skin, hair and clothing.
A couple of thousand years before the Egyptians preserved some of their dead, a much simpler society made the first known mummies.
The Chinchorros, the first mummy makers, lived about 7,000 years ago in South America, on the coast near the border between modern-day Peru and Chile. The desert area where they lived was so dry, dead people turned into mummies naturally.