2000 in science

neutral subatomic elementary particle

overview of natural science-related events during the year 2000

pallasite meteorite found near Fukang, China

stony meteorite

partial solar eclipse

20th-century partial solar eclipse

20th-century partial solar eclipse

20th-century partial solar eclipse

Central

A superlens, or super lens, is a lens which uses metamaterials to go beyond the diffraction limit. The diffraction limit is a feature of conventional lenses and microscopes that limits the fineness of their resolution depending on the illumination wavelength and the numerical aperture (NA) of the objective lens. Many lens designs have been proposed that go beyond the diffraction limit in some way, but constraints and obstacles face each of them.

metamaterials whose refractive index for an electromagnetic wave has a negative value over some frequency range

Lunar eclipse