OCR 21st Century How do series and parallel circuits work? - OCR 21st Century What determines the rate of energy transfer in a circuit? What are magnetic fields? - OCR 21st Century ...

But how do these biomolecules convert chemical ... demonstrate how very simple artificial molecular motors are capable of ...

The primary feature of stepper motors is listed right within their name: their ability to ‘step’ forwards and backwards, something which they (ideally) can do perfectly in sync with the input ...