Many natural cellular solids exhibit a quadratic scaling relationship between modulus and density: The distinction is that unlike cellular solids, highly porous gels are not completely mechanically ...

In digital circuits, insulating dielectrics separate the conducting parts (wire interconnects and transistors) from one another. As components have scaled down and transistors have gotten closer and ...

In hard disk drives, digital information is stored and retrieved magnetically by a “read head” that flies over the disk within tens of nanometers of its surface. Figure 1 is a photograph of a read ...