Eureka, I did it!
Invented telegraph
Who is Samuel Morse
What is cardiology
Snoopy
Who is Charlie Brown
Stopping by Woods on a Snowy Evening
Who is Robert Frost
Leg 3, hypotenuse 5
Invented phonograph
Who is Thomas Edison
Ears
Audiology
Pluto
Who is Mickey Mouse
Annabell Lee
Who is Edgar Allen Poe
Leg 6, hypotenuse 10
What is leg 8
Who is Robert Fulton
Blood
Hematology
Odie
Who is Garfield
Twas the Night Before Christmas
Clement Clark Moore
leg 5, hypotenuse 13
What is leg 12
Invented paperback flexible film and Kodak camera
Who is George Eastman
Kidneys
What is nephrology
Scooby Doo
Who is Shaggy
The Tyger (Tyger Tyger Burning Bright)
Who is William Blake
leg 9, leg 12
What is hypotenuse 15
Inventor of arc lighting and incandescent lamp
Who is Nicola Tesla
Eyes
What is ophthalmology
Astro
Who is George Jetson
All The World's a Stage
William Shakespeare
leg 11, leg 60
What is hypotenuse 61