Conceptual image of a time warp, co-created with Ron Russell.

Illustration of the visible portion of the electromagnetic spectrum entering a human eye.

Illustration of the visible portion of the electromagnetic spectrum entering a human eye.

Photo illustration of prisms with color spectra.

Photo illustration showing the magnetic field of a bar magnet, as demonstrated by iron filings aligning with the magnetic field lines.

Illustration of the visual light spectrum produced by computer.

Photo illustration of the concept of atomic energy.

Close-up of a man's ear with sound waves and wave-related measurements superimposed over it.

Conceptual image of quarks and gluons, the hypothetical particles of matter that make up protons and neutrons, as the building blocks of the universe. Shooting streaks and spiral galaxies are visible in the background.

Computerized atomic structure.