Not your Grandfather's Gravity

Not your

Grandfather’s Gravity!

John Ashmead

Tuesday, May 31, 2011

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

Not your grandfather’s gravity www.timeandquantummechanics.com

Endeavor blasts off

Outline

•A brief history of gravity

•The Runaway universe

•At the edge of the known

Galileo

Orbits of the planets

Mysterium Cosmographicum

Science is organized

common sense where many a

beautiful theory is killed by an

ugly fact. - Huxley

Kepler’s orbits,Newton’s Law

Hollow Earth

Cavendish

Equivalence principle

Of ants & apples

Parallel transport

Riemann Curvature Tensor

Effect of curvature

d = ∇ b( )∇ a( ) − ∇ a( )∇ b( )( )cTuesday, May 31, 2011

Einstein’s field equation

xd = Rabcd xc

xd = Rabcd xc Tµν

fluid( ) =

ρ 0 0 00 p 0 00 0 p 00 0 0 p

⎜⎜⎜⎜⎜

⎟⎟⎟⎟⎟

xd = Rabcd xc Tµν

fluid( ) =

ρ 0 0 00 p 0 00 0 p 00 0 0 p

⎜⎜⎜⎜⎜

⎟⎟⎟⎟⎟

Rµν −12gµνR =

8πGc2

− gµνΛ

xd = Rabcd xc Tµν

fluid( ) =

ρ 0 0 00 p 0 00 0 p 00 0 0 p

⎜⎜⎜⎜⎜

⎟⎟⎟⎟⎟

Rµν −12gµνR =

8πGc2

Quantum gravity

•Gravity is itself a source of gravity

•Quantum mechanics predicts almost infinite cosmological constant

Hawking Radiation

Black hole information paradox

Thermodynamics & gravity

•Surface gravity ~ Temperature

•Area ~ entropy

•Mass ~ energy

•Area ~ entropy

•Mass ~ energy

Entropic gravity

For me gravity doesn’t exist,” — Verlinde

NASA / WMAP Science Team

Type Ia supernova

The music of the spheres

http://www.astro.uvic.ca/~alexhp/new/supernova_sonata.html

Baryonic Matter (us)

Rapidly spinning galaxies

Seeing the invisible

Dark energy

The edge of the known

•Astronomy

• Neutrinos

•Astronomy

• Neutrinos

• Cosmic rays

•Astronomy

• Neutrinos

• Cosmic rays

• Gravity waves

•Astronomy

• Neutrinos

• Cosmic rays

• Gravity waves

• Wimps

•Astronomy

• Neutrinos

• Cosmic rays

• Gravity waves

• Wimps

•CERN/LHC

•Astronomy

• Neutrinos

• Cosmic rays

• Gravity waves

• Wimps

•CERN/LHC

• Higgs Boson

•Astronomy

• Neutrinos

• Cosmic rays

• Gravity waves

• Wimps

•CERN/LHC

• Higgs Boson

• Wimps

•Astronomy

• Neutrinos

• Cosmic rays

• Gravity waves

• Wimps

•CERN/LHC

• Higgs Boson

• Wimps

• Strings

•Astronomy

• Neutrinos

• Cosmic rays

• Gravity waves

• Wimps

•CERN/LHC

• Higgs Boson

• Wimps

• Strings

• Baby Black Holes

Neutrinos

Neutron

Neutrinos

Neutron DecayNeutron

Neutrinos

Sudbery Neutrino Detector

Neutron DecayNeutron

Cosmic Rays

Gravity Waves

Binary pulsar

Gravity Waves

Higgs Bosons

String theory & Calabi-Yau spaces

Research is the process of going up alleys to see if they are blind

•Quark gluon plasmas

•Cyclic universes

•Inflation

•Cyclic universes

•Inflation

•Curious abundance of anti-matter

•Cyclic universes

•Inflation

•Curious abundance of anti-matter

•…

May 27th, 2011Daily Galaxy

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, ...

•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

Technology

Not Your Grandfather's PACS - dclunie.com€¦ · Not Your Grandfather's PACS New Expectations for Image Management David Clunie (dclunie@dclunie.com) PixelMed Publishing . PACS –

My Great Grandfather's Crack House in Buffalo

Grandfather's Clock - VFMC

Rich Social: Not Your Grandfather's Rich Media

Not Your Grandfather's Camping Trip: Climate change and health hazards of outdoor recreation

Not-Parametric Gravity: Measuring the Aggregate ... · Not-Parametric Gravity: Measuring the Aggregate Implications of Firm Heterogeneity∗ RodrigoAd˜ao ChicagoBooth&NBER rodrigo.adao@chicagobooth.edu

What is (not) wrong with scalar gravity?

Not Your Grandfather's PACS - New Expectations for Image

Gedankenexperiment of the Unification of General ... · translation. 3 Woit: Not Even Wrong, p. 196 Force of Gravitation A. Harvesting Gravity B. Minimal Gravity C. Maximal Gravity

Project - 'Making the Grandfather's Clock - Veneering the ......Project - "Making the Grandfather's Clock - Rail and Stile and Raised Panel Making Beth picks up where she left off

This Isn't Your Grandfather's Marketing (Or it Totally, Totally Is)

What is Gravity? Write down anything you may know about gravity. Any examples of gravity Where you may find it or not find it!

Project - 'Making the Grandfather's Clock - Veneering … - "Making the Grandfather's Clock ... Beth now spreads yellow glue over the top side of the MDF panel. ... quickly finds that

It's Not Your Grandfather's University: The Impact of Technology and Diversity

NOT YOUR GRANDFATHER'S - downloads.proteloinc.comdownloads.proteloinc.com/Modern-manufacturing-trends-netsuite... · NOT YOUR GRANDFATHER'S ... compactor and WiFi electronics, weather

1.3 grandfather's journey

A GRANDFATHER'S REMINISCENCES

Scattering in Conformal Gravity...Gravity processes = product of gauge theory ones - entire S-matrix Gauge theory Gravity Recent generalizations: à Theories that are not truncations

William B. Harvey University of Virginia July 29, 2006 It's Not Your Grandfather's University: The Impact of Technology and Diversity in the Contemporary

Quantum Gravity - Menumasashi.hamanaka/sato_y10.pdf · Thus loop quantum gravity is constructed in terms of not ... the Lorentz symmetry, is not fundamental but e ... Our tactics