Researchers show that Cartan's First Structure Equation, which relates to edge and screw dislocations in crystal lattices, can be recast in the same form as a basic mathematical formula that governs ...

There's also a bigger battery, up to 2.0Ah from 1.5Ah, which is quite a bump and something I appreciate when I've got a long job, or forgotten to put it on charge after the last job. Also: They said I ...