Their more recent work, however, focuses on two-dimensional fracture networks on planetary surfaces, examining the patterns ...

As examples, the intrinsic fracture energy of polymer networks is about 10 to 100 joules per square meter, 50–500 J/m 2 for elastomers used in car tires, while spider silk has an intrinsic ...

"The exact sequence of these events is still to be determined by further examination of the fracture surfaces." What is mixed-used airspace? After 15,000 close calls at one airport, FAA takes ...