A Cylinder Of Air Reaching To The

A Cylinder Of Air Reaching To The Top Of The Atmosphere Is Of Equal Weight With A Cylinder Of Water About 33 Feet High.

Impressed Force Is The Action Exerted On A Body To Change Its State Either Of Resting Or Of Moving Uniformly Straight Forward.

A Body In Motion Tends To Stay In Motion Unless Acted On By An Outside Force.

Therefore To The Same Natural Effects We Must, As Far As Possible, Assign The Same Causes.

As In Mathematicks, So In Natural Philosophy, The Investigation Of Difficult Things By The Method Of Analysis, Ought Ever To Precede The Method Of Composition. This Analysis Consists In Making Experiments And Observations, And In Drawing General Conclusions From Them By Induction, And Admitting Of No Objections Against The Conclusions, But Such As Are Taken From Experiments, Or Other Certain Truths. For Hypotheses Are Not To Be Regarded In Experimental Philosophy.