Inertia| Inertia |
In General > s.a. mach's
principle; mass; Moment
of Inertia; vacuum.
* Idea: The resistance an object opposes to acceleration.
* History: The concept
was first understood by Galileo, and formalized in Newton's first law of
dynamics; D'Alembert [@ Traité de dynamique, p3] argued that
Newton's first law can be established without the need for observation or
experiment.
* Limits on anisotropy:
Experiments around 1960 by Hughes and by Drever;
The relative size of the effect is < 10–18.
Origin > s.a. mass.
* Idea: Two possibilities are that inertia arises as a result of gravitational
interactions, or interaction of material particles with local fluctuations
of the quantum vacuum.
@ Quantum fluctuations: Smolin CQG(86)
[and quantum gravity]; Mashhoon FPL(93);
Jaekel & Reynaud
JdP(93)qp/01 [Casimir],
in(97)qp/95;
Milgrom PLA(99)ap/98
[and MOND]; Dobyns et al FP(00);
Jaekel & Reynaud a0812-in.
@ Electromagnetic origin: Haisch et al phy/98-in;
Rueda & Haisch PLA(98)phy,
FP(98)phy;
Haisch & Rueda gq/99-in,
PLA(00)gq/99,
in(98)gq/99;
Haisch et al gq/02-in;
Woodward & Mahood
FP(99),
Woodward FP(01)
[untenable]; Martins & Pinheiro IJTP(08).
@ Mach's principle: Mashhoon PLA(88); Graneau & Graneau GRG(03)
[Newton-Mach particle interactions]; Woodward FP(04)
[proposed test].
@ Related topics: Mashhoon & Kaiser PhyB(06)qp/05
[and intrinsic spin]; Masreliez PS(07)
[acceleration-dependent metric?]; Moffat & Toth MNRAS(09)-a0710 [modified
gravity and test-particle motion].
References > s.a. anomalous
acceleration; models
of spacetime.
@ General: Sciama MRAS(53), SA(57); Barbour BJPS(82);
Rosu G&C(99)gq/94.
@ And gravitation: Ciufolini & Wheeler 95.
@ Covariant definition: Abramowicz in(93); Abramowicz et al CQG(93);
Sonego & Massar
CQG(96).
@ Limits on anisotropy: Cocconi & Salpeter NC(58), PRL(60);
Hughes et al PRL(60);
Sherwin et al PRL(60).
@ Other: Rohrlich PRD(01)
[and
self-interaction]; Caplan & Heald AJP(04)jul
[re class demonstration]; Afriat & Caccese a0804.
Inertial Frame and Related Concepts > s.a. equivalence
principle; force; Reference
Frame.
* Idea: An ideal element of Newtonian physics, identified by the validity
of Newton's laws in it.
@ References: Barbour 89; DiSalle in(02).
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send feedback and suggestions to bombelli at olemiss.edu – modified 14
aug
2009