Building Challenge Day!!!!!!!  We love our building challenges.  Today we looked at domes.  We talked about how they have been around for almost 2,000 years, but there are still new ways to build them.  In the 1950's an engineer named Buckminster Fuller thought of a new dome design.  He used triangular sides.  This kind of dome is called a geodesic dome.  It is strong because of all the triangles.  It also uses fewer materials than other structures that have the same amount of space inside.  Fuller looked at a dome and saw a way to make it better.  Future engineers like our students could think of a new way to design one.  They were given gumdrops and toothpicks and given the challenge of building a dome.  Check out their structures.