Frozen Niagara Falls
Niagara Falls stopped flowing for one day in 1848. Ice had jammed the river. Children could learn more at: Niagara Falls.
Mar 292024
Mar 292024
Herbert Hoover
White House had its first telephone installed in the Oval Office in 1929. Herbert Hoover was President. President Rutherford B. Hayes had the first White House telephone installed on May 10, 1877, but that telephone was located in the telegraph room.
Mar 292024
Cheese, butter, and meat were rationed in 1943 as part of the effort to win World War II. Shoppers received ration books with stamps. When the shopper no longer had stamps for a certain product, that product could not be bought until next month. Sugar, tires, and gasoline were also rationed. Rationing was lifted in 1946. Children could learn many more facts at the excellent website: Food Rations.
Mar 292024
Mariner 10
Mariner 10 flew by Mercury for the first time in 1974. Launched November 3, 1973, it first flew by Venus on February 5, 1974. After it flew by Mercury, it orbited the sun and came close to Mercury again on September 21, 1974. A third encounter happened on March 16, 1975. Data from Mariner 10 included 2,800 photographs of Mercury as well as information on a helium atmosphere and an iron-rich core. Mariner 10 ran out of fuel and stopped transmitting data on March 24, 1975. Scientists believe that it continues to orbit the sun. Children could learn more at: Mariner 10.