History Flashcards
1
Q
This person discovered the electron
A
J.J. Thompson
2
Q
Who was credited for inventing the first electron microscope?
A
Knoll and Ruska
3
Q
Who was credited with discovering the law of refraction, ‘Snell’s law‘, and
used it to develop lens shapes that focus light with no geometric aberrations?
A
IbnSahl(c. 940-1000)
4
Q
Zacharias & Hans Jansen were credited for the discovery of what?
A
First compound microscope
5
Q
Describe 5 ways in which Marcello Malpighi contributed to science through his use of microscopes
A
- A skin layer (Malpighi layer)
- 2 different Malpighiancorpuscles in the kidneys and the spleen
- Malpighiantubules in the excretory system of insects
- Described lung structure and blood flow, blood clotting on right and left side of heart
- First to see red blood cells, black skin, described the brain as a gland