On This Date In History
On December 12, 1937, during the battle for Nanking in the Sino-Japanese War, the U.S. gunboat Panay is attacked and sunk by Japanese warplanes in Chinese waters. The American vessel, neutral in the Chinese-Japanese conflict, was escorting U.S. evacuees and three Standard Oil barges away from Nanking, the war-torn Chinese capital on the Yangtze River. After the Panay was sunk, the Japanese fighters machine-gunned lifeboats and survivors huddling on the shore of the Yangtze. Two U.S. sailors and a civilian passenger were killed and 11 personnel seriously wounded, setting off a major crisis in U.S.-Japanese relations.
Although the Panay‘s position had been reported to the Japanese as required, the neutral vessel was clearly marked, and the day was sunny and clear, the Japanese maintained that the attack was unintentional, and they agreed to pay $2 million in reparations. Two neutral British vessels were also attacked by the Japanese in the final days of the battle for Nanking.
On December 12, 1901, Italian physicist and radio pioneer Guglielmo Marconi succeeds in sending the first radio transmission across the Atlantic Ocean, disproving detractors who told him that the curvature of the earth would limit transmission to 200 miles or less. The message, simply the Morse-code signal for the letter “s”, traveled more than 2,000 miles from Poldhu in Cornwall, England, to Newfoundland, Canada.
Born in Bologna, Italy, in 1874 to an Italian father and an Irish mother, Marconi studied physics and became interested in the transmission of radio waves after learning of the experiments of the German physicist Heinrich Hertz. He began his own experiments in Bologna beginning in 1894 and soon succeeded in sending a radio signal over a distance of 1.5 miles. Receiving little encouragement for his experiments in Italy, he went to England in 1896. He formed a wireless telegraph company and soon was sending transmissions from distances farther than 10 miles. In 1899, he succeeded in sending a transmission across the English Channel. That year, he also equipped two U.S. ships to report to New York newspapers on the progress of the America’s Cup yacht race. That successful endeavor aroused widespread interest in Marconi and his wireless company.
Marconi’s greatest achievement came on December 12, 1901, when he received a message sent from England at St. John’s, Newfoundland. The transatlantic transmission won him worldwide fame. Ironically, detractors of the project were correct when they declared that radio waves would not follow the curvature of the earth, as Marconi believed. In fact, Marconi’s transatlantic radio signal had been headed into space when it was reflected off the ionosphere and bounced back down toward Canada. Much remained to be learned about the laws of the radio wave and the role of the atmosphere in radio transmissions, and Marconi would continue to play a leading role in radio discoveries and innovations during the next three decades.
In 1909, he was jointly awarded the Nobel Prize in physics with the German radio innovator Ferdinand Braun. After successfully sending radio transmissions from points as far away as England and Australia, Marconi turned his energy to experimenting with shorter, more powerful radio waves. He died in 1937, and on the day of his funeral all British Broadcasting Corporation (BBC) stations were silent for two minutes in tribute to his contributions to the development of radio.
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