Pierre and Marie Curie are best known for their pioneering work in the study of radioactivity, which led to their discovery in 1898 of the elements radium and polonium.
1 The beam of your boat is the width at the widest part of the boat.  To measure the beam, stand inside the boat and run a measuring tape from the port (left) side to the starboard (right) side at the widest section of your boat.
Beam (structure) A beam is a structural element that is capable of withstanding load primarily by resisting against bending. The bending force induced into the material of the beam as a result of the external loads, own weight, span and external reactions to these loads is called a bending moment. Beams are characterized by their profile (shape of cross-section), their length, and their material.