how do you when you have crossed a threshold for a mechanical device
Light pen is a mechanical or optical device? i don't know answer for this
The rocket engine is the device that converts chemical energy into the mechanical energy. A firecracker also converts chemical energy into mechanical energy.
name a device that convert the mechanical energy into electrical energy
A motor is one example of a device that converts electrical energy into mechanical energy.
Mechanical input device
how do you when you have crossed a threshold for a mechanical device
A mechanical or electronic device that displays the time.
Light pen is a mechanical or optical device? i don't know answer for this
motor
A mechanical device that can work by means of fuel consumption. A mechanical device that can work by means of fuel consumption.
The device which convert mechanical energy in to electrical energy is "Dynamo".
mechanical
Ariel lift is considered a mechanical device. It is used to provide temporary access for people or equipment to inaccessible areas.
Mechanical ventilation is the use of a mechanical device (machine) to inflate and deflate the lungs.
The mechanical assist device is the device when inserted in a lower chamber helps patients weakened heart.
A lever is a mechanical device.