| People Found Who Don't Use Numbers [60-Second Science] [The following is an exact transcript of this podcast.]Counting is one of the first things we teach our kids. I mean, every parent’s probably said, “You had better be in that bed by the time I count to three.” Followed by “One…two…two-and-a-half…” But counting might not be as universal as it seems. Because scientists from M.I.T. have found that a tribe living in the Amazon has no words for numbers. [More] feeds.feedburner.com |
The Daily Delicious for July 24, 2008 Menon for BR.Lakshmi Menon for Banana RepublicJust noticed that model Lakshmi Menon is all over the BR web site. Wish the clothes were cooler but excited she’s being used by a mainstream brand. —Priya(tags: design fashion shopping)Natalie Portman Stars in a Bollywood-themed music video for Devendra Banhart’s “Carmensita”Love it or leave it? I’m on the [...] niralimagazine.com |
The Workings of an Ancient Nuclear Reactor Editor's Note: This article originally appeared in the October 2005 issue of Scientific American.In May 1972 a worker at a nuclear fuel–processing plant in France noticed something suspicious. He had been conducting a routine analysis of uranium derived from a seemingly ordinary source of ore. As is the case with all natural uranium, the material under study contained three isotopes-- that is to say, three forms with differing atomic masses: uranium 238, the most abundant variety; uranium 234, the rarest; and uranium 235, the isotope that is coveted because it can sustain a nuclear chain reaction. Elsewhere in the earth’s crust, on the moon and even in meteorites, uranium 235 atoms make up 0.720 percent of the total. But in these samples, which came from the Oklo deposit in Gabon (a former French colony in west equatorial Africa), uranium 235 constituted just 0.717 percent. That tiny discrepancy was enough to alert French scientists that something strange had happened. Further analyses showed that ore from at least one part of the mine was far short on uranium 235: some 200 kilograms appeared to be missing-- enough to make half a dozen or so nuclear bombs. [More] rss.sciam.com |
First ATM opens for business On this day in 1969, America's first automatic teller machine (ATM) makes its public debut, dispensing cash to customers at Chemical Bank in Rockville Center, New York. ATMs went on to revolutionize the banking industry, eliminating the need to visit a bank to conduct basic financial transactions. By the 1980s, these money machines had become widely popular and handled many of the functions previously performed by human tellers, such as check deposits and money transfers between accounts. Today, ATMs are as indispensable to most people as cell phones and e-mail.Several inventors worked on early versions of a cash-dispensing machine, but Don Wetzel, an executive at Docutel, a Dallas company that developed automated baggage-handling equipment, is generally credited as coming up with the idea for the modern ATM. Wetzel reportedly conceived of the concept while waiting on line at a bank. The ATM that debuted in New York in 1969 was only able to give out cash, but in 1971, an ATM that could handle multiple functions, including providing customers' account balances, was introduced.ATMs eventually expanded beyond the confines of banks and today can be found everywhere from gas stations to convenience stores to cruise ships. There is even an ATM at McMurdo Station in Antarctica. Non-banks lease the machines (so-called "off premise" ATMs) or own them outright.Today there are well over 1 million ATMs around the world, with a new one added approximately every five minutes. It's estimated that more than 170 Americans over the age of 18 had an ATM card in 2005 and used it six to eight times a month. Not surprisingly, ATMs get their busiest workouts on Fridays.In the 1990s, banks began charging fees to use ATMs, a profitable move for them and an annoying one for consumers. Consumers were also faced with an increase in ATM crimes and scams. Robbers preyed on people using money machines in poorly lit or otherwise unsafe locations, and criminals also devised ways to steal customers' PINs (personal identification numbers), even setting up fake money machines to capture the information. In response, city and state governments passed legislation such as New York's ATM Safety Act in 1996, which required banks to install such things as surveillance cameras, reflective mirrors and locked entryways for their ATMs. history.com |
Ford pardons Nixon In a controversial executive action, President Gerald Ford pardons his disgraced predecessor Richard Nixon for any crimes he may have committed or participated in while in office. Ford later defended this action before the House Judiciary Committee, explaining that he wanted to end the national divisions created by the Watergate scandal.The Watergate scandal erupted after it was revealed that Nixon and his aides had engaged in illegal activities during his reelection campaign--and then attempted to cover up evidence of wrongdoing. With impeachment proceedings underway against him in Congress, Nixon bowed to public pressure and became the first American president to resign. At noon on August 9, Nixon officially ended his term, departing with his family in a helicopter from the White House lawn. Minutes later, Vice President Gerald R. Ford was sworn in as the 38th president of the United States in the East Room of the White House. After taking the oath of office, President Ford spoke to the nation in a television address, declaring, "My fellow Americans, our long national nightmare is over."Ford, the first president who came to the office through appointment rather than election, had replaced Spiro Agnew as vice president only eight months before. In a political scandal independent of the Nixon administration's wrongdoings in the Watergate affair, Agnew had been forced to resign in disgrace after he was charged with income tax evasion and political corruption. Exactly one month after Nixon announced his resignation, Ford issued the former president a "full, free and absolute" pardon for any crimes he committed while in office. The pardon was widely condemned at the time.Decades later, the John F. Kennedy Library Foundation presented its 2001 Profile in Courage Award to Gerald Ford for his 1974 pardon of Nixon. In pardoning Nixon, said the foundation, Ford placed his love of country ahead of his own political future and brought needed closure to the divisive Watergate affair. Ford left politics after losing the 1976 presidential election to Democrat Jimmy Carter. Ford died on December 26, 2006, at the age of 93. history.com |