Our task was to create a mechanism that will allow a liquid, in our case blood, to flow through in only one direction. The mechanism should hinder the rate of flow as little as possible when open and should completely stop the flow of liquid when closed. The mechanism will be tested inside a real heart and should function properly in the given conditions.After testing our prototype, the one with the two inch diameter, in the testing apparatus we encountered a small, albeit fixable, problem. When the prototype was in the closed setting(with the lid resting on the base) we had a small leak. The leak would move and change in size based on the pressure exerted by the water. We though a good way to solve the leak would be to insert an “o-ring” under the flap of our prototype in order to create a better seal. Theoretically, the ring should expand horizontally when downwards pressure is exerted on the spherical edge of the ring, thus causing any possible leaks to be filled by the newly expanded ring.

Our task was to build the most difficult puzzle in the physical form of a cube, that displaces an area created with the constraints of three “blocks” in all three dimensions. The puzzle will consist of five distinct pieces, each given their own corresponding color. Each piece will consist of a minimum of four pieces and a maximum of six pieces, however the total amount of blocks must be equal to twenty seven, as the cube must fully displace the given area.