The Rutherford atom. Illustration from  Quantum Physics in a Nutshell .
 In Loop Quantum Gravity, spin networks in 3-D become spin foams in 4-D. Illustration from  Degree in a book: Cosmology .
 Three quarks inside a proton held together by the exchange of gluons. Illustration from  Degree in a book: Cosmology .
 Quark-gluon lattice. Illustration for  Quantum Physics in a Nutshell .
 Every event in spacetime is defined by a ‘light-cone’ defining past, present and future. Illustration from  Degree in a book: Cosmology .
 A cross-section of a black hole displaying the accretion disk. Illustration from  Degree in a book: Cosmology .
 As the sphere expands, the surface seems flatter and flatter with no curvature. Illustration from  Degree in a book: Cosmology .
 Cathode-ray tube. Illustration for  Quantum Physics in a Nutshell .
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