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.
And what does the different heights of a transom matter? I was looking up boats on websites for the companies and they had transom heights for the boats, what does that mean? The transom is the top sides of the stern of the boat. It may be perpendicular or angled forward or aft. Many boats have an inboard engine, so no outboard to mount, yet the boat still needs a transom. The stern is the aft section of the boat, the transom is the surface that forms the stern of the vessel. Some transoms can even be round or pointed as in a canoe stern.