Daily Almanac for Saturday, November 25, 2023

By Zola Elder

On this date in 1975, Robert S. Ledley granted a patent for CAT scan. Here is Robert Ledley. By Fred Ledley, Member and Chair of the National Biomedical Research Foundation, CC BY-SA 3.0, https commons.wikimedia.org

FROM WIKIPEDIA COMMONS

Robert Steven Ledley (June 28, 1926 – July 24, 2012), professor of physiology and biophysics and professor of radiology at Georgetown University School of Medicine, pioneered the use of electronic digital computers in biology and medicine. In 1959, he wrote two influential articles in Science: “Reasoning Foundations of Medical Diagnosis” (with Lee B. Lusted) and “Digital Electronic Computers in Biomedical Science”. Both articles encouraged biomedical researchers and physicians to adopt computer technology.

In 1960 he established the National Biomedical Research Foundation (NBRF), a non-profit research organization dedicated to promoting the use of computers and electronic equipment in biomedical research. At the NBRF Ledley pursued several major projects: the early 1960s development of the Film Input to Digital Automatic Computer (FIDAC), which automated the analysis of chromosomes; the invention of the Automatic Computerized Transverse Axial (ACTA) whole-body CT scanner in the mid-1970s; managing the Atlas of Protein Sequence and Structure (created in 1965 by Margaret O. Dayhoff); and the establishment of the Protein Information Resource in 1984. Ledley also served as editor of several major peer-reviewed biomedical journals.

In 1990, Ledley was inducted into the National Inventors Hall of Fame. He was awarded the National Medal of Technology in 1997. He retired as president and research director of the NBRF in 2010.

Robert Ledley at the exhibit of the ACTA whole-body CT scanner at the Smithsonian’s National Museum of American History. By Fred Ledley, CC BY-SA 3.0, https commons.wikimedia.org

TODAY’S ALMANAC

Question of the Day

What is the best way to deodorize my car?

Clean all the upholstery and carpeting with a mixture of vinegar and water. Sponge it in and blot with a towel. You can clean the remaining interior surfaces the same way.

Advice of the Day

To clean a steam iron, fill it with vinegar, let sit overnight, and flush with water.

Home Hint of the Day

To hammer in a small brad without hammering the fingers that hold it, poke the brad through the edge of a piece of cardboard, holding it while you tap the brad in most of the way. Then pull the cardboard free and pound the nail flush.

Word of the Day

Clodhopper

A rude, rustic fellow.

Puzzle of the Day

What is that which is so easily broken that the mere mention of it breaks it?

Silence

Born

  • Franz Gruber (composer) – 
  • Andrew Carnegie (industrialist) – 
  • Georg Kaiser (dramatist) – 
  • Virgil Thomson (composer) – 
  • Helen Gahagan Douglas (politician) – 
  • Joe DiMaggio (baseball player) – 
  • John Larroquette (actor) – 
  • Amy Grant (singer) – 
  • John F. Kennedy, Jr. (son of President John F. Kennedy and First Lady Jacqueline Kennedy) – 
  • Christina Applegate (actress) – 
  • Barbara Pierce Bush and Jenna Welch Bush (fraternal twin daughters of President George W. Bush and First Lady Laura Bush) – 

Died

  • Upton Sinclair (writer) – 
  • Flip Wilson (actor & comedian) – 
  • Rance Howard (actor) – 

Events

  • First sword-swallower performance in the U.S.– 
  • First YMCA in North America opened, in Montreal, Quebec– 
  • Last log entry for Mary Celeste before crew disappeared – 
  • Greenback Party (originally, National Independent Party) organized– 
  • American College of Surgeons incorporated– 
  • Albert Einstein formulated his general theory of relativity– 
  • The first door to King Tut’s tomb was opened– 
  • President John F. Kennedy was buried at 3:34 pm EST in Arlington National Cemetery– 
  • Robert S. Ledley granted a patent for CAT scan– 
  • Rene Levesque became premier of Quebec– 
  • U.S. chess champion John Donaldson wed Soviet champion Elena Akhmilovskaya– 
  • Ireland voted to legalize divorce– 

Weather

  • A tornado ripped through Portland, Arkansas– 
  • Steubenville, Ohio, received 36.3 inches of snow– 
  • West Virginia received 57 inches of snow– 
  • A blizzard hit the Appalachian states and nearby areas. Hartford, Connecticut, recorded gusts of 100 miles (160km) per hour.– 
  • Winds atop Mount Washington in New Hampshire were recorded at 160 miles per hour– 

COURTESY www.almaanc