Question

Who first demonstrated a stable vacuum? *

A Galileo Galilei
B Nicolaus Copernicus
C Al Gore
D Gasparo Berti
Other:
IF ITS OTHER TELL ME WHAT IT IS pleaseee .. TY :3

Answer 1

The answer is other it was Daniel Hess

I’m pretty sure, sorry if I’m wrong.

Answer 2

William Henry "Boss" Hoover ,was the person who invented a vacuum cleaner in 1920

Step-by-step explanation:

but id.k if that answers ur question