green numbers give full details.
|
back to list of philosophers
|
expand these ideas
Ideas of Isaac Newton, by Text
[British, fl. 1687, Born in Lincolnshire. At Trinity College, Cambridge. Published theory of gravity in 1687.]
|
1669
|
Universal Arithmetick
|
|
|
p.407
|
17783
|
A number is not a multitude, but a unified ratio between quantities
|
|
1687
|
Principia Mathematica
|
|
|
p.8
|
22915
|
Newton needs intervals of time, to define velocity and acceleration [Le Poidevin]
|
|
|
p.12
|
6421
|
Newton's four fundamentals are: space, time, matter and force [Russell]
|
|
|
p.26
|
15866
|
Newton reclassified vertical motion as violent, and unconstrained horizontal motion as natural [Harré]
|
|
|
p.38
|
13470
|
Mass is central to matter [Hart,WD]
|
|
|
p.53
|
22893
|
Newton thought his laws of motion needed absolute time [Bardon]
|
|
|
p.54
|
22954
|
Newtonian mechanics does not distinguish negative from positive values of time [Coveney/Highfield]
|
|
|
p.57
|
15958
|
Inertia rejects the Aristotelian idea of things having natural states, to which they return [Alexander,P]
|
|
|
p.82
|
17546
|
If you changed one of Newton's concepts you would destroy his whole system [Heisenberg]
|
|
|
p.83
|
17547
|
Newton's idea of force acting over a long distance was very strange [Heisenberg]
|
|
|
p.106
|
17008
|
You have discovered that elliptical orbits result just from gravitation and planetary movement [Leibniz]
|
|
|
p.125
|
13593
|
Newton showed that falling to earth and orbiting the sun are essentially the same [Ellis]
|
|
|
p.149
|
23012
|
Newtonian causation is changes of motion resulting from collisions [Baron/Miller]
|
|
|
p.232
|
18079
|
Newton developed a kinematic approach to geometry [Kitcher]
|
|
|
p.237
|
20966
|
Newton introduced forces other than by contact [Papineau]
|
|
|
p.238
|
20967
|
Newton's laws cover the effects of forces, but not their causes [Papineau]
|
|
|
p.239
|
20968
|
Newton's Third Law implies the conservation of momentum [Papineau]
|
|
|
p.239
|
20969
|
Early Newtonians could not formulate conservation of energy, having no concept of potential energy [Papineau]
|
|
|
p.426
|
16708
|
Newton's forces were accused of being the scholastics' real qualities [Pasnau]
|
|
Pref
|
p.41
|
17011
|
I suspect that each particle of bodies has attractive or repelling forces
|
|
Preface
|
p.41
|
17010
|
We have given up substantial forms, and now aim for mathematical laws
|
|
1.1.11 Sch
|
p.86
|
13153
|
I am studying the quantities and mathematics of forces, not their species or qualities
|
|
1.II.Schol
|
p.86
|
17020
|
An attraction of a body is the sum of the forces of their particles
|
|
Axioms
|
p.70
|
17017
|
1: Bodies rest, or move in straight lines, unless acted on by forces
|
|
Axioms
|
p.71
|
17018
|
2: Change of motion is proportional to the force
|
|
Axioms
|
p.71
|
17019
|
3: All actions of bodies have an equal and opposite reaction
|
|
Bk 3 Gen Schol
|
p.90
|
17025
|
If a perfect being does not rule the cosmos, it is not God
|
|
Bk 3 Gen Schol
|
p.90
|
17024
|
The elegance of the solar system requires a powerful intellect as designer
|
|
Bk 3 Gen Schol
|
p.92
|
17026
|
From the phenomena, I can't deduce the reason for the properties of gravity
|
|
Bk 3 Gen Schol
|
p.92
|
17027
|
Science deduces propositions from phenomena, and generalises them by induction
|
|
Bk 3 Gen Schol
|
p.93
|
17028
|
Particles mutually attract, and cohere at short distances
|
|
Bk 3 Rule 1
|
p.87
|
17022
|
We should admit only enough causes to explain a phenomenon, and no more
|
|
Bk 3 Rule 2
|
p.87
|
17021
|
Natural effects of the same kind should be assumed to have the same causes
|
|
Bk 3 Rule 3
|
p.88
|
17023
|
I am not saying gravity is essential to bodies
|
|
Def 8 Schol
|
p.64
|
17012
|
Time exists independently, and flows uniformly
|
|
Def 8 Schol
|
p.64
|
17013
|
Absolute space is independent, homogeneous and immovable
|
|
Def 8 Schol
|
p.65
|
17014
|
The place of a thing is the sum of the places of its parts
|
|
Def 8 Schol
|
p.66
|
17016
|
Philosophy must abstract from the senses
|
|
Def 8 Schol
|
p.66
|
17015
|
If there is no uniform motion, we cannot exactly measure time
|
|
I:Schol after defs
|
p.145
|
14012
|
Absolute time, from its own nature, flows equably, without relation to anything external
|
|
Lemma 1
|
p.238
|
18082
|
Quantities and ratios which continually converge will eventually become equal
|
|
Pref 1st ed
|
p.173
|
12724
|
The aim is to discover forces from motions, and use forces to demonstrate other phenomena
|
|
1692.12.10
|
p.94
|
15863
|
The principles of my treatise are designed to fit with a belief in God
|
|
1692.12.10
|
p.95
|
13150
|
The motions of the planets could only derive from an intelligent agent
|
|
1693.01.17
|
p.99
|
13151
|
Not all infinites are equal
|
|
1693.01.17
|
p.100
|
8340
|
I do not pretend to know the cause of gravity
|
|
1693.02.25
|
p.102
|
12178
|
That gravity should be innate and essential to matter is absurd
|
|
1693.02.25
|
p.103
|
13152
|
We can talk of 'innumerable number', about the infinite points on a line
|
|
1693
|
Letters to Leibniz 1
|
|
1693.10.16
|
p.109
|
17009
|
I won't object if someone shows that gravity consistently arises from the action of matter
|
|
1721
|
Queries to the 'Opticks'
|
|
q 31
|
p.544
|
16746
|
Principles of things are not hidden features of forms, but the laws by which they were formed
|