Notched axi-symmetric test pieces (AE for the French "axisym trique entaill e" are laboratory test pieces used to characterize fracture properties (mostly metallic) of materials. The stress level ...

(Phys.org)—The laws of physics are the same no matter which direction you're facing or how fast you're moving—it's such an intuitive concept that most people probably don't know that it has a name: ...

An antimatter atom abides by the same rules as its matter look-alike. Scientists studying antihydrogen have found that the energy needed to bump the atoms into an excited, or high-energy, state is the ...