\(power \ of \ a \ lens \ (D) = \frac{1}{focal \ length \ (m)}\) A lens has a power of -3.33 dioptres. Calculate the focal length and state what type of lens it is.

Created in 1998, the L'Oréal-UNESCO For Women in Science International Awards honours - every year - 5 eminent women scientists from 5 regions of the world. The scientific fields considered for the ...

Several other international organizations, including the European Molecular Biology Laboratory and the European Southern Observatory, have been modelled after CERN. Other scientific communities ...