- #1
Aleoa
- 128
- 5
In the masterpiece "Philosophiae Naturalis Principia Mathematica" , Newton says:
"Absolute, true, and mathematical time, of itself, and from its own nature, flows equably without relation to anything external, and by another name is called duration: relative, apparent, and common time, is some sensible and external (whether accurate or unequable) measure of duration by the means of motion, which is commonly used instead of true time"
All this sentence seems clear to me, except the two adjective: relative and apparent. For you, what's is the meaning the Newton gives to this two adjectives in this context ?
"Absolute, true, and mathematical time, of itself, and from its own nature, flows equably without relation to anything external, and by another name is called duration: relative, apparent, and common time, is some sensible and external (whether accurate or unequable) measure of duration by the means of motion, which is commonly used instead of true time"
All this sentence seems clear to me, except the two adjective: relative and apparent. For you, what's is the meaning the Newton gives to this two adjectives in this context ?