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All the ideas for 'On Motion', 'Farewell to Reality: fairytale physics' and 'works'

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7 ideas

19. Language / A. Nature of Meaning / 6. Meaning as Use

20949	Study the use of words, not their origins [Herder]
	Full Idea: Not how an expression can be etymologically derived and determined analytically, but how it is used is the question. Origin and use are often very different.
	From: Johann Gottfried Herder (works [1784], p.153), quoted by Andrew Bowie - Introduction to German Philosophy 2 'Herder'
	A reaction: This doesn't quite say that meaning is use, and is basically an attack on the Etymological Fallacy (that origin gives meaning), but it is a strikingly modern view of language.

22. Metaethics / B. Value / 1. Nature of Value / f. Ultimate value

7669	We cannot attain all the ideals of every culture, so there cannot be a perfect life [Herder, by Berlin]
	Full Idea: For Herder, we cannot attain to the highest ideals of all the centuries and all the places at once, and since we cannot do that, the whole notion of the perfect life collapses.
	From: report of Johann Gottfried Herder (works [1784]) by Isaiah Berlin - The Roots of Romanticism Ch.3
	A reaction: Herder seems to be the father of modern cultural relativism. The idea is hard to challenge, but the ideals of some cultures should be ignored, if they diminish rather than enhance the good life for all.

24. Political Theory / D. Ideologies / 7. Communitarianism / a. Communitarianism

7668	Herder invented the idea of being rooted in (or cut off from) a home or a group [Herder, by Berlin]
	Full Idea: The whole notion of being at home, or being cut off from one's natural roots, the whole idea of roots, the whole idea of belonging to a group, a sect, a movement, was largely invented by Herder.
	From: report of Johann Gottfried Herder (works [1784], Ch.3) by Isaiah Berlin - The Roots of Romanticism
	A reaction: Hm. Broad generalisations are an awful temptation in the history of ideas. As a corrective to this, trying reading the two Anglo-Saxon poems 'The Wanderer' and 'The Seafarer'. Very Germanic, I suppose. Interesting, though. Leads to Hegel's politics.

27. Natural Reality / B. Modern Physics / 1. Relativity / a. Special relativity

12709	Motion is not absolute, but consists in relation [Leibniz]
	Full Idea: In reality motion is not something absolute, but consists in relation.
	From: Gottfried Leibniz (On Motion [1677], A6.4.1968), quoted by Daniel Garber - Leibniz:Body,Substance,Monad 3
	A reaction: It is often thought that motion being relative was invented by Einstein, but Leibniz wholeheartedly embraced 'Galilean relativity', and refused to even consider any absolute concept of motion. Acceleration is a bit trickier than velocity.

27. Natural Reality / B. Modern Physics / 2. Electrodynamics / b. Fields

21731	Fields can be 'scalar', or 'vector', or 'tensor', or 'spinor' [Baggott]
	Full Idea: Fields can be 'scalar', with no particular direction (pointing, but not pushing or pulling); or 'vector', with a direction (like magnetism, or Newtonian gravity); or 'tensor' (needing further parameters); or 'spinor' (depending on spin orientation).
	From: Jim Baggott (Farewell to Reality: fairytale physics [2013], 2 'Quantum')
	A reaction: [compressed] So the question is, why do they differ? What is it in the nature of each field the result in a distinctive directional feature?

21730	A 'field' is a property with a magnitude, distributed across all of space and time [Baggott]
	Full Idea: A 'field' is defined in terms of the magnitude of some physical property distributed over every point in time and space.
	From: Jim Baggott (Farewell to Reality: fairytale physics [2013], 2 'Quantum')
	A reaction: If it involves a 'property', normal usage entails that there is some entity which possesses the property. So what's the entity? Eh? Eh? You don't know! Disappointed...

27. Natural Reality / B. Modern Physics / 4. Standard Model / b. Standard model

21732	The current standard model requires 61 particles [Baggott]
	Full Idea: The current model requires 61 particles: three generations of two leptons and two flavours of quark, in three different colours (making 24); the anti-particles of all of these (48); 12 force particles (photon, W1, Z0, 8 gluons), and a Higgs boson.
	From: Jim Baggott (Farewell to Reality: fairytale physics [2013], 6 n)