swap_horiz Letitia Geer Alternatives

1

Wilhelm Conrad Röntgen

Wilhelm Conrad Röntgen was a German physicist and mechanical engineer who discovered X-rays in 1895 while experimenting...

German Physics 19TH Century Medical

9.8 Brilliant

2

Herman Hollerith

Herman Hollerith was an American inventor whose innovations dramatically improved data processing. He developed a punch-...

American 19TH Century Computing Punch Card Tabulator

9.3 Excellent

3

Charles R. Drew

Charles R. Drew was an American surgeon and medical researcher whose work in blood transfusion and storage techniques re...

American Medical Biological Mid 20TH

9.3 Excellent

4

John Pemberton

John Pemberton was an American pharmacist born in 1831. He developed Coca-Cola in Atlanta, Georgia, beginning with its c...

American 19TH Century Beverage Pharmacist

9.1 Excellent

5

George Eastman

George Eastman was an American inventor instrumental in transforming photography. He established Eastman Kodak in 1892,...

American Photography 19TH Century Kodak

9.0 Excellent

6

John Browning

John Browning was an American inventor primarily known for his groundbreaking work in firearms design during the 19th ce...

American 19TH Century Mechanical Firearms

9.0 Excellent

7

Joseph Henry

Joseph Henry (1797–1878) was an American scientist and engineer who served as the first Secretary of the Smithsonian Ins...

American 19TH Century Electrical Telegraphy

9.0 Excellent

8

Christopher Sholes

American inventor Christopher Latham Sholes is notable for creating the first practical typewriter and developing the QW...

American 19TH Century Mechanical Typewriter

8.9 Great

9

Gertrude B. Elion

Gertrude B. Elion was a pioneering American pharmacologist whose work revolutionized medicine. She developed innovative...

American 20TH Century Medical Drugs

8.8 Great

10

Frank Sprague

Frank Julian Sprague was an American electrical engineer and inventor who played a pivotal role in the development of ur...

American 19TH Century Transportation DC Motor

8.8 Great

11

Elizabeth Lee Hazen

Elizabeth Lee Hazen was an American microbiologist who, with biochemist Rachel Fuller Brown, discovered nystatin in 1950...

American 20TH Century Medical Nystatin

8.8 Great

12

Samuel Morse

Samuel Morse was an 19th century American inventor instrumental in revolutionizing communication. He developed Morse cod...

Communication American 19TH Century Code

8.7 Great

13

George Westinghouse

George Westinghouse was a 19th-century American inventor best known for his pioneering work with electrical systems. He...

American 19TH Century Electric Railway

8.7 Great

14

Elisha Otis

Elisha Otis revolutionized urban development with his invention of the safety elevator brake. Prior to this innovation,...

Safety American 19TH Century Elevator

8.7 Great

15

Alfred Vail

Alfred Vail was an American machinist, inventor, and telegraph operator who collaborated with Samuel Morse during the de...

American 19TH Century Telegraph Communications

8.7 Great

16

William T. G. Morton

William T. G. Morton was an American dentist credited with popularizing ether as a surgical anesthetic. His demonstratio...

American 19TH Century Medical Anesthesia

8.1 Great

17

Crawford Long

Crawford Williamson Long was an American physician recognized for using ether as a surgical anesthetic in Jefferson, Geo...

American 19TH Century Medical Anesthesia

7.8 Good

18

John Gorrie

John Gorrie was a nineteenth-century American physician and inventor whose medical work in Florida led him to investigat...

American 19TH Century Medical Refrigeration

7.5 Good

19

Charles Pravaz

Charles Pravaz (1791-1853) was a French orthopedic surgeon credited with developing an early hypodermic syringe in 1853....

French 19TH Century Medical Syringe

7.3 Good

20

Alexander Wood

Alexander Wood was a 19th-century Scottish physician credited with pioneering the hypodermic administration of drugs. In...

19TH Century Medical Scottish Syringe

7.3 Good