TOP 100 HISTORY SITES
| |||
|
| |||
| |||
|
| |||
| Bigfoot Press Conference Yields Little Evidence, Lots of Scorn PALO ALTO, CALIF.--It was perhaps the most highly touted press conference of the week, but it didn't reveal much in the way of evidence: Three bigfoot enthusiasts announced today that a series of genetic tests performed on samples taken from a carcass they claim is a Sasquatch came back as a mixture of human and opossum.In addition to the mixed DNA results, Tom Biscardi, Matthew Whitton and Rick Dyer showed the audience two blurry photos, one of a solitary figure in mixed hardwood forest and another of the mouth of what appeared to be the tongue and teeth of a primate. [More] feeds.feedburner.com |
Seismic "Noise"--Oil Prospecting Data Could Decipher Ocean Mixing Three decades ago researchers discovered what are essentially enormous saltwater lakes in the Atlantic Ocean. These “lakes,” called meddies, are gently spinning lenses of water up to 100 kilometers across and one kilometer thick. They float a few hundred meters below the surface of the ocean. Such large, warm bodies, which turned out to come from the Mediterranean Sea, should have an impact on heat exchange in the ocean--and on the planet’s climate. But efforts to study meddies--conventionally by dropping probes that directly measure the ocean’s temperature, salinity and velocity--have proved too costly, infrequent and spread out to reveal how the meddies dissipate their heat.Now researchers have demonstrated that a tool adapted from the oil industry can take rapid, high-resolution snapshots of the meddies. The technique, first used to find oil deposits under the seafloor, exploits sound reflections. Prospectors on ships fire air guns just below the sea surface; the acoustic waves then propagate down through the seafloor and bounce back to a towed array of microphones. The timing of sound waves’ return reveals the density of the material through which they passed. [More] feeds.feedburner.com |
Step into another time, another life This summer, experience the life and times of lumberjacks, lighthouse keepers, Victorian children and others when you visit the Michigan Historical Museum System's eleven history-filled locations. michigan.gov |
Sputnik launched The Soviet Union inaugurates the "Space Age" with its launch of Sputnik, the world's first artificial satellite. The spacecraft, named Sputnik after the Russian word for "satellite," was launched at 10:29 p.m. Moscow time from the Tyuratam launch base in the Kazakh Republic. Sputnik had a diameter of 22 inches and weighed 184 pounds and circled Earth once every hour and 36 minutes. Traveling at 18,000 miles an hour, its elliptical orbit had an apogee (farthest point from Earth) of 584 miles and a perigee (nearest point) of 143 miles. Visible with binoculars before sunrise or after sunset, Sputnik transmitted radio signals back to Earth strong enough to be picked up by amateur radio operators. Those in the United States with access to such equipment tuned in and listened in awe as the beeping Soviet spacecraft passed over America several times a day. In January 1958, Sputnik's orbit deteriorated, as expected, and the spacecraft burned up in the atmosphere.Officially, Sputnik was launched to correspond with the International Geophysical Year, a solar period that the International Council of Scientific Unions declared would be ideal for the launching of artificial satellites to study Earth and the solar system. However, many Americans feared more sinister uses of the Soviets' new rocket and satellite technology, which was apparently strides ahead of the U.S. space effort. Sputnik was some 10 times the size of the first planned U.S. satellite, which was not scheduled to be launched until the next year. The U.S. government, military, and scientific community were caught off guard by the Soviet technological achievement, and their united efforts to catch up with the Soviets heralded the beginning of the "space race."The first U.S. satellite, Explorer, was launched on January 31, 1958. By then, the Soviets had already achieved another ideological victory when they launched a dog into orbit aboard Sputnik 2. The Soviet space program went on to achieve a series of other space firsts in the late 1950s and early 1960s: first man in space, first woman, first three men, first space walk, first spacecraft to impact the moon, first to orbit the moon, first to impact Venus, and first craft to soft-land on the moon. However, the United States took a giant leap ahead in the space race in the late '60s with the Apollo lunar-landing program, which successfully landed two Apollo 11 astronauts on the surface of the moon in July 1969. history.com |
Great Chicago Fire begins On this day in 1871, flames spark in the Chicago barn of Patrick and Catherine O'Leary, igniting a 2-day blaze that kills between 200 and 300 people, destroys 17,450 buildings,leaves 100,000 homeless and causes an estimated $200 million (in 1871 dollars; $3 billion in 2007 dollars) in damages. Legend has it that a cow kicked over a lantern in the O'Leary barn and started the fire, but other theories hold that humans or even a comet may have been responsible for the event that left four square miles of the Windy City, including its business district, in ruins. Dry weather and an abundance of wooden buildings, streets and sidewalks made Chicago vulnerable to fire. The city averaged two fires per day in 1870; there were 20 fires throughout Chicago the week before the Great Fire of 1871. Despite the fire's devastation, much of Chicago's physical infrastructure, including its water, sewage and transportation systems, remained intact. Reconstruction efforts began quickly and spurred great economic development and population growth, as architects laid the foundation for a modern city featuring the world's first skyscrapers. At the time of the fire, Chicago's population was approximately 324,000; within nine years,there were 500,000 Chicagoans. By 1893, the city was a major economic and transportation hub with an estimated population of 1.5 million. That same year, Chicago was chosen to host the World's Columbian Exposition, a major tourist attraction visited by 27.5 million people, or approximately half the U.S. population at the time. In 1997, the Chicago City Council exonerated Mrs. O'Leary and her cow. She turned into a recluse after the fire, and died in 1895. history.com |