Robbert Dijkgraaf

The Unknown Universe Robbert Dijkgraaf

Very impressive, dear colleague. But does it also work in theory?

Galileo’s `Book of Nature’

“ The universe cannot be read until we have learned the language and become familiar with the characters in which it is written. It is written in mathematical language, and the letters are triangles, circles and other geometrical figures, without which means it is humanly impossible to comprehend a single word.” Galileo Galilei The Book of Nature

“ If all mathematics disappeared today, physics would be set back exactly one week.” “ That was the week that God created the world.” Anonymous Mathematician Richard Feynman “ To those who do not know mathematics it is difficult to get across a real feeling as to the beauty, the deepest beauty, of nature ... If you want to learn about nature, to appreciate nature, it is necessary to understand the language that she speaks in.”

Cosmos Relativity Particles Quantum

The Universe

Curvature of Space-Time Mass

The Quantum World

Black Box ? in uit

Black Box in uit ?

Anomalous magnetic moment of the electron 1,0011596521859 ± 0,000000000003 8 Hair

Standard Model

Grand Unified Theory?

Dark Matter

Strong Force Weak Force Electro Magnetism Gravity Energy GeV Unification 10 15 10 10 10 5 1

Space-Time Foam Planck length 10 -35 m

Max Planck } Planck length

The Hierarchy Hubble Scale (largest) “ Life” Planck Scale (smallest)

The Unbearable Lightness Of Gravity

Why is every electron exactly the same? NATURE’S ELECTRON FACTORY

There is only one electron in the universe! John Wheeler Richard Feynman

Space-Time time + + + + + - - - - - -

Virtual Particles time

Vacuum Fluctuations time

Dark Energy

Weight of the Universe 73% dark energy 23% dark matter 4% known matter

Dark Knowledge

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Robbert Dijkgraaf

by TEDxAmsterdam on Dec 17, 2009

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Robbert Dijkgraaf — Presentation Transcript