What did the Magdeburg experiment demonstrate about air pressure? A. that atmospheric pressure on the earth's surface has tremendous force

B. that horses are not intelligent enough to understand how to defeat atmospheric pressure

C. that the vacuum inside the two attached hemispheres has tremendous suction

D. that the horses could not get sufficient traction to pull the hemispheres apart

workers of lowell mills were greatly benefited for the waltham type of work which was more a paternalist kind, trying to protect the integrity of this little girls coming from small farmers and providing an adequate place of work, this in an effort to avoid the issues of bad place conditions and immorality that the people in bigger industrialized cities of great britain were experimenting.

the communist manifesto is an 1848 political pamphlet by the german near the end of the manifesto, the authors call for a "forcible overthrow of all existing social conditions",  ..