Not your Grandfather's Gravity

Not your Grandfather’s Gravity! John AshmeadTuesday, May 31, 2011

Not your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Endeavor blasts offNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Outline • A brief history of gravity • The Runaway universe • At the edge of the knownNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

GalileoNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Orbits of the planetsNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Mysterium CosmographicumNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Mysterium Cosmographicum Science is organized common sense where many a beautiful theory is killed by an ugly fact. - HuxleyNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Kepler’s orbits, Newton’s LawNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Hollow EarthNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

CavendishNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Equivalence principleNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Of ants & applesNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Parallel transportNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Riemann Curvature Tensorb d Effect of curvature a b b c a d = ( ∇ ( b ) ∇ ( a ) − ∇ ( a ) ∇ ( b )) cNot your grandfather’s gravity www.timeandquantummechanics.com Tuesday, May 31, 2011

Einstein’s ﬁeld equationNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Einstein’s ﬁeld equation x =R x d d abc cNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Einstein’s ﬁeld equation ⎛ ρ 0 0 0 ⎞ ⎜ ⎟ ⎜ 0 p 0 0 ⎟ x =R x d d abc c ( fluid ) Tµν = ⎜ 0 0 p 0 ⎟ ⎜ ⎟ ⎜ ⎝ 0 0 0 p ⎟ ⎠Not your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Einstein’s ﬁeld equation ⎛ ρ 0 0 0 ⎞ ⎜ ⎟ ⎜ 0 p 0 0 ⎟ x =R x d d abc c ( fluid ) Tµν = ⎜ 0 0 p 0 ⎟ ⎜ ⎟ ⎜ ⎝ 0 0 0 p ⎟ ⎠ 1 8π G Rµν − gµν R = 2 Tµν 2 cNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Einstein’s ﬁeld equation ⎛ ρ 0 0 0 ⎞ ⎜ ⎟ ⎜ 0 p 0 0 ⎟ x =R x d d abc c ( fluid ) Tµν = ⎜ 0 0 p 0 ⎟ ⎜ ⎟ ⎜ ⎝ 0 0 0 p ⎟ ⎠ 1 8π G Rµν − gµν R = 2 Tµν − gµν Λ 2 cNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Quantum gravity • Gravity is itself a source of gravity • Quantum mechanics predicts almost inﬁnite cosmological constantNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Hawking RadiationNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Black hole information paradoxNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Thermodynamics & gravityNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Thermodynamics & gravity • Surface gravity ~ TemperatureNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Thermodynamics & gravity • Surface gravity ~ Temperature • Area ~ entropyNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Thermodynamics & gravity • Surface gravity ~ Temperature • Area ~ entropy • Mass ~ energyNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Entropic gravityNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Entropic gravity For me gravity doesn’t exist,” — VerlindeNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

NASA / WMAP Science TeamNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Type Ia supernovaNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

The music of the spheres http://www.astro.uvic.ca/~alexhp/new/supernova_sonata.htmlNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Baryonic Matter (us)Not your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Rapidly spinning galaxiesNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Seeing the invisibleNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Dark energyNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

The edge of the knownNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

The edge of the known • AstronomyNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

The edge of the known • Astronomy • NeutrinosNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

The edge of the known • Astronomy • Neutrinos • Cosmic raysNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

The edge of the known • Astronomy • Neutrinos • Cosmic rays • Gravity wavesNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

The edge of the known • Astronomy • Neutrinos • Cosmic rays • Gravity waves • WimpsNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

The edge of the known • Astronomy • CERN/LHC • Neutrinos • Cosmic rays • Gravity waves • WimpsNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

The edge of the known • Astronomy • CERN/LHC • Neutrinos • Higgs Boson • Cosmic rays • Gravity waves • WimpsNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

The edge of the known • Astronomy • CERN/LHC • Neutrinos • Higgs Boson • Cosmic rays • Wimps • Gravity waves • WimpsNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

The edge of the known • Astronomy • CERN/LHC • Neutrinos • Higgs Boson • Cosmic rays • Wimps • Gravity waves • Strings • WimpsNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

The edge of the known • Astronomy • CERN/LHC • Neutrinos • Higgs Boson • Cosmic rays • Wimps • Gravity waves • Strings • Wimps • Baby Black HolesNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Neutrinos NeutronNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Neutrinos Neutron Neutron DecayNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Neutrinos Neutron Sudbery Neutron Decay Neutrino DetectorNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Cosmic RaysNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Gravity WavesNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Gravity Waves Binary pulsarNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Gravity WavesNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

WimpsNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

CERNNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Higgs BosonsNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

String theory & Calabi-Yau spacesNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Research is the process of going up alleys to see if they are blindNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Research is the process of going up alleys to see if they are blind • Quark gluon plasmasNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Research is the process of going up alleys to see if they are blind • Quark gluon plasmas • Cyclic universesNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Research is the process of going up alleys to see if they are blind • Quark gluon plasmas • Cyclic universes • InﬂationNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Research is the process of going up alleys to see if they are blind • Quark gluon plasmas • Cyclic universes • Inﬂation • Curious abundance of anti- matterNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Research is the process of going up alleys to see if they are blind • Quark gluon plasmas • Cyclic universes • Inﬂation • Curious abundance of anti- matter •…Not your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

May 27th, 2011 Daily GalaxyNot your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Since Jan 2010 • Gravity may be an entropic force • Universe is deﬁnitely 95% mysterious • Neutrino, Cosmic ray, Wimp, & gravitational telescopes online or in development • LHC online & looking for Higgs boson, Calabi-Yau dimensions, ...Not your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

• Susskind: Cosmic Landscape, black hole war • Halpern: Collider; Lincoln: large hadron collider • Ananthaswamy: edge of physics • Panek: 4% universe; Hammond: Unknown Universe • Greene, Hawking, Smolin, Yau, Steinhardt & Turok, Wilczek,…Not your grandfather’s gravity www.timeandquantummechanics.comTuesday, May 31, 2011

Not your Grandfather's Gravity

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