Born: 1904Birthplace: York, Pa. Complex computer—Stibitz is internationally recognized as the father of the modern digital computer. In 1939 Stibitz helped design the Model I complex number…
A Quantum Leap into Quantum MechanicsChemistryThe Modern AtomBohr: What Is It Good For?Spectroscopy: Reading Between the LinesA Quantum Leap into Quantum Mechanics Unfortunately for Bohr, his…
The 300 millionth American was born in October 2006 by the U.S. Census Bureau Who was the 300 millionth American? Related Links Year Page: 2006Year Page: 1967Year Page: 1915Life…
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(Encyclopedia) nuclear weapons, weapons of mass destruction powered by atomic, rather than chemical, processes. Nuclear weapons produce large explosions and hazardous radioactive byproducts by means…
The Question: Is the "official" Roman numeral for 1999 MCMXCIX or MIM? The Answer: According to librarians at the National Institute of Standards and Technology…
ANALOGUE – SIMPLE BUT RISKYSAMPLINGELECTRONIC CALCULATORLOGIC CIRCUITSFIND OUT MOREThe simplest kind of electronics, known as analogue electronics, works with continuous signals – a smoothly rising…
FROM RECORDING TO PLAYBACKMICROPHONECASSETTE TAPEMAKING A MASTER COMPACT DISK (CD)DIGITAL SOUNDFIND OUT MOREMost sounds happen only briefly and are then lost to us. Fortunately, there are two…
Ballots: Types and History by David Johnson Paper Ballots First used in the Australian state of Victoria in 1857, the paper ballot listing all the candidates was first known as "…
Declining proportions of adults are married. Although the number of currently married people has grown 23% since 1970 (from 95 million in 1970 to 116 million in 1996), the number of unmarried…
