HyperPhysics
Online tutorials covering a wide range of Physics and Astronomy with the usage of multimedia.
HyperMath
Online tutorials covering a wide range of Mathematics with the usage of multimedia.
Astronomy
- interactive Eric Weisstein's
Astronomy Encyclopedia.
Biography
- interactive Eric Weisstein's
Biographical Encyclopedia of Outstanding Scientists.
Chemistry
- interactive Eric Weisstein's
Chemistry Encyclopedia.
MathWorld
- interactive Eric Weisstein's
Mathematics Encyclopedia.
PhysWorld
- interactive Eric Weisstein's
Physics Encyclopedia.
Nature of Science
- Popular Encyclopedia of James Trefil (in russian).
Nuclear Physics in Internet (in russian)
- server of Moscow State University Physics Faculty
Physics
Encyclopedia, compiled by I.
Ivanov
Physics
Encyclopedia (in russian),
compiled by I. Ivanov