Central claims: Poincare-Henri

Project has one document: "The New Mechanics" (Henri Poincare, The Monist pp. 385-395, translated by G. B. Halsted), read in full [read: p.1-11]. No source gap: the text layer is complete (no OCR); the essay has no equations. The date is not printed in the document; it is a lecture of 28 April 1909 at Gottingen, printed in The Monist 23(3), July 1913 [web, en.wikisource; QE correction].

1. Mass increases with velocity and the speed of light cannot be exceeded: equal impulses give ever smaller velocity gains, and radium-projectile deflection experiments show that inertia depends on velocity [read: p.2-3].
2. The principle of relativity has absolute, unrestricted value: no experiment can detect absolute motion, and observers carried through the ether can know only an "apparent" (local) time, not a true common time [read: p.4-6].
3. A body moving through the ether is deformed along its direction of motion (the Earth in orbit by about 1/200,000,000), and Michelson's experiments are said to verify this [read: p.6-7].
4. Matter's constant mass vanishes: the inertia of an electron is the inertia of the ether (electromagnetic), and Kaufmann's experiments are cited as showing the real constant mass is negligible [read: p.7-8].
5. Lorentz's velocity-dependent attraction law shifts Mercury's perihelion in the right direction (38 arcseconds of excess observed motion, 32 arcseconds still unexplained, no time period stated), and accelerated bodies radiate energy so that planets would eventually fall into the sun [read: p.9-10].
6. Classical Newtonian mechanics is not finally condemned: it remains the mechanics of small velocities and of practical technology, and it must be learned to understand the new one [read: p.10-11].