A torque converter with a casing, a turbine, and a piston having a first friction surface located at a radially outer portion of the piston, and a first drive ring having second and third friction surfaces. The telemetry assembly includes a wireless transmitter coupled to the spindle to rotate therewith and a receiving antenna wirelessly coupled to the transmitter. The nanoparticle is capable of transforming the light energy to the thermal energy. The first insulated wire and the second insulated wire are twisted to each other at a part thereof to provide a twisted section of the conductive member. A temporal-variation-amplifier of at least two reduced images is operable to generate a temporal variation, a vital-sign generator is operable to generate at least one vital sign from the temporal variation and a display device is operable to display the at least one vital sign.