Observing Stars Our view of the sky at night is possible because of the emission and reflection of light. 'Light' is the better-known term for the electromagnetic spectrum, which includes waves in the visible, ultra-violet, infra-red, microwave, radio, X-ray and gamma-ray regions. The scale of ...

Abstract Research was carried out to investigate the effect of the direction of incident light on the behavioural response of Calliphora larvae. They were centrally placed onto a piece of white paper marked with positive, negative and neutral in a circular chart. White light was shone onto the ma...