Interesting Engineering on MSN1d
Astronomers spot rare double-gravitational lens formed by two aligned galaxies
Astronomers have discovered two galaxies that are perfectly aligned, allowing their combined gravitational pull to act as a ...
Astronomers discover two galaxies aligned in a way where their gravity acts as a compound lens
An international team of astronomers has discovered an instance of two galaxies aligned in a way where their gravity acts as ...
Medscape7d
Contact Lens Fitting in the Refractive Surgery Patient
Contact lens fitting may be adversely influenced by dry eyes, a common side effect of refractive surgery. Appropriate management of tear deficiency is of paramount importance. Corneal topography ...