| The Long and Winding Road: DNA Evidence for Human Migration; Plus July Issue Highlights Gary Stix discusses his July Scientific American cover article on DNA evidence for the history of human migration. And editor in chief, John Rennie, talks about the neuroscience of dance, the quantum cosmos and Rubik's Cubes. Plus, we'll test your knowledge of some recent science in the news. Web sites mentioned on this episode include www.sciam.com/sciammagPodcast Transcription [More] feeds.feedburner.com |
Hunting for a Mammoth in the Yukon [Slide Show] This week, SciAm frequent contributor Charles Q. Choi spends his days in the Yukon on an expedition with researchers from the American Museum of Natural History in New York City. Their goal: to recover intact DNA from mammoths, which once roamed the tundra but went extinct some 11,000 years ago.Slide Show: Mammoth Excavation Photos [More] feeds.feedburner.com |
American Red Cross founded In Washington, D.C., humanitarians Clara Barton and Adolphus Solomons found the American National Red Cross, an organization established to provide humanitarian aid to victims of wars and natural disasters in congruence with the International Red Cross.Barton, born in Massachusetts in 1821, worked with the sick and wounded during the American Civil War and became known as the "Angel of the Battlefield" for her tireless dedication. In 1865, President Abraham Lincoln commissioned her to search for lost prisoners of war, and with the extensive records she had compiled during the war she succeeded in identifying thousands of the Union dead at the Andersonville prisoner-of-war camp.She was in Europe in 1870 when the Franco-Prussian War broke out, and she went behind the German lines to work for the International Red Cross. In 1873, she returned to the United States, and four years later she organized an American branch of the International Red Cross. The American Red Cross received its first U.S. federal charter in 1900. Barton headed the organization into her 80s and died in 1912. history.com |
First barrel ride down Niagara Falls On this day in 1901, a 63-year-old schoolteacher named Annie Edson Taylor becomes the first person to take the plunge over Niagara Falls in a barrel. After her husband died in the Civil War, the New York-born Taylor moved all over the U. S. before settling in Bay City, Michigan, around 1898. In July 1901, while reading an article about the Pan-American Exposition in Buffalo, she learned of the growing popularity of two enormous waterfalls located on the border of upstate New York and Canada. Strapped for cash and seeking fame, Taylor came up with the perfect attention-getting stunt: She would go over Niagara Falls in a barrel.Taylor was not the first person to attempt the plunge over the famous falls. In October 1829, Sam Patch, known as the Yankee Leaper, survived jumping down the 175-foot Horseshoe Falls of the Niagara River, on the Canadian side of the border. More than 70 years later, Taylor chose to take the ride on her birthday, October 24. (She claimed she was in her 40s, but genealogical records later showed she was 63.) With the help of two assistants, Taylor strapped herself into a leather harness inside an old wooden pickle barrel five feet high and three feet in diameter. With cushions lining the barrel to break her fall, Taylor was towed by a small boat into the middle of the fast-flowing Niagara River and cut loose.Knocked violently from side to side by the rapids and then propelled over the edge of Horseshoe Falls, Taylor reached the shore alive, if a bit battered, around 20 minutes after her journey began. After a brief flurry of photo-ops and speaking engagements, Taylor's fame cooled, and she was unable to make the fortune for which she had hoped. She did, however, inspire a number of copy-cat daredevils. Between 1901 and 1995, 15 people went over the falls; 10 of them survived. Among those who died were Jesse Sharp, who took the plunge in a kayak in 1990, and Robert Overcracker, who used a jet ski in 1995. No matter the method, going over Niagara Falls is illegal, and survivors face charges and stiff fines on either side of the border. history.com |
U.N. votes for partition of Palestine Despite strong Arab opposition, the United Nations votes for the partition of Palestine and the creation of an independent Jewish state.The modern conflict between Jews and Arabs in Palestine dates back to the 1910s, when both groups laid claim to the British-controlled territory. The Jews were Zionists, recent emigrants from Europe and Russia who came to the ancient homeland of the Jews to establish a Jewish national state. The native Palestinian Arabs sought to stem Jewish immigration and set up a secular Palestinian state.Beginning in 1929, Arabs and Jews openly fought in Palestine, and Britain attempted to limit Jewish immigration as a means of appeasing the Arabs. As a result of the Holocaust in Europe, many Jews illegally entered Palestine during World War II. Radical Jewish groups employed terrorism against British forces in Palestine, which they thought had betrayed the Zionist cause. At the end of World War II, in 1945, the United States took up the Zionist cause. Britain, unable to find a practical solution, referred the problem to the United Nations, which on November 29, 1947, voted to partition Palestine.The Jews were to possess more than half of Palestine, though they made up less than half of Palestine's population. The Palestinian Arabs, aided by volunteers from other countries, fought the Zionist forces, but the Jews secured full control of their U.N.-allocated share of Palestine and also some Arab territory. On May 14, 1948, Britain withdrew with the expiration of its mandate, and the State of Israel was proclaimed by Jewish Agency Chairman David Ben-Gurion. The next day, forces from Egypt, Transjordan, Syria, Lebanon, and Iraq invaded.The Israelis, though less well equipped, managed to fight off the Arabs and then seize key territories, such as Galilee, the Palestinian coast, and a strip of territory connecting the coastal region to the western section of Jerusalem. In 1949, U.N.-brokered cease-fires left the State of Israel in permanent control of those conquered areas. The departure of hundreds of thousands of Palestinian Arabs from Israel during the war left the country with a substantial Jewish majority. history.com |