The Traffic Barrier-Transfer Machine Caltrans is studying the durability and performance of its Barrier-Transfer Machines, also known as “zippers.” Facebook Prev Article Next Article Engineering Checkout these cool gadgets... Related Posts First full scale tidal lagoon power plant in Wales “Motion Magnification” Reveals Vibrations Invisible to the Naked Eye Blue Origin’s BE-3 engine cleared for flight RICE Freshmen Engineers Created a Device to Ease the Pain of an Injection Layered fabric 3D printer creates squeezable interactive objects Programmable Table