What is probably the most revolutionary innovation since the printing press?

How can you tell if someone sent you a text message to your email instead of a email

Let r be a robotic arm with a fixed base and seven links. the last joint of r is a prismatic joint, the other ones are revolute joints. give a set of parameters that determines a placement of r. what is the dimension of the configuration space resulting from your choice of parameters?

To produce a starlight effect in her photograph, lina should choose the filter for her camera.