Home > Science Fact Finder > General Science and Technology - For What Is Percy Lavon Julian Noted?

1. Printable Version
2. Download PDF
3. Cite this Page

For what is Percy Lavon Julian noted?

Percy Lavon Julian (1899-1975), a grandson of a former slave, is noted for his work on synthesizing (artificially making) hormones and medicinal substances, as well as for developing many industrial uses for plant products. He obtained 130 chemical patents in his lifetime.

In 1935, Julian made physostigmine, a powerful drug for the treatment of the disease glaucoma (the build-up of pressure inside the eyeball that gradually destroys the retina, causing blindness). A year later he isolated and prepared a soybean protein that could be used as a chemical fire-extinguishing foam.

Julian also developed a method of producing cortisone, a substance used in the treatment of rheumatoid arthritis (a chronic disease characterized by stiffness and inflammation of the joints) and other inflammatory diseases. In addition, he synthesized the female sex hormone progesterone and the male...

Join eNotes

The above is a free excerpt. Get total access to this content with the:

eNotes Pass

1. Inventions And Fairs
   1. Who invented the Xerox™ machine?
   2. Who invented the electron microscope?
   3. What is the formula for invisible ink?
   4. Who invented velcro™?
   5. Who invented teflon?
   6. Who invented the zipper?
   7. Which scientific discoveries were made accidentally?
   8. What is the origin of blue jeans?
   9. Which tools were used by Neanderthal man?
   10. Who invented the Slinky™?
   11. Who invented Rubik's cube™?
   12. What is the origin of the fire alarm box?
   13. How does a breathalyzer determine the alcohol level of the breath?
   14. How are scratch and sniff cards made?
   15. What is the name of the chemical used in watches to make them glow in the dark?
   16. When was cement first used?
   17. How are compact discs (CDs) made?
   18. How are colored fireworks made?
   19. Why are the letters all mixed up on the typewriter keyboard?
   20. When was the first world's fair?
   21. What is contained in the time capsule buried at the site of the New York World's Fair in 1940?
2. Accomplishments
   1. Who was the first American to receive a Nobel Prize?
   2. Who was the first American woman to win a Nobel Prize and how many women have received the prize?
   3. What were the discoveries of John Bardeen, the only person to win two Nobel Prizes in the same field?
   4. For what accomplishments did Marie Curie receive a Nobel Prize?
   5. What is the National Inventors Hall of Fame?
3. Patents And Trademarks
   1. What types of patents are available?
   2. What is the Guzman prize?
   3. How long does a patent a trademark, or a copyright protect the holder?
   4. What cannot be patented?
   5. What is the difference between the symbols ™ and ® when used with a trademark?
   6. Which patent was issued to a U.S. president?
   7. For what is Percy Lavon Julian noted?
   8. Which patents were issued to Mark Twain?
4. Oddities, Hoaxes, And Accidents
   1. What was the world's greatest fraud?
   2. What is the Bermuda Triangle?
   3. What is a jackalope?
   4. Which industrial accidents have become major disasters?
   5. What was the Great Boston Molasses Disaster of 1919?
5. Technological Achievements
   1. Which scientific and technological event was the most important in U.S. history?
   2. What are the ten outstanding engineering achievements of the last thirty years?
   3. What is "High Technology" or "High Tech"?
   4. What is the new science of chaos?
   5. In which industries are robots being used?
   6. What does the acronym "LASER" stand for?
   7. What is holography?
6. Weapons
   1. Who invented the bowie knife?
   2. When was the Colt revolver patented?
   3. When and where was gunpowder invented?
   4. Who invented dynamite?
   5. What was the Manhattan Project?
   6. What is a nuclear winter?

1. Atomic Bomb