A weekly programme about work in the world of science
Do Stars Twinkle? by Hamilton Hartridge , M.D., F.R.S.
It has long been thought that the twinkling of a star is due to changes in the refraction of the atmosphere, but recently Professor Hartridge, who directs the Medical Research Council's Vision Research Unit, has put forward observations which suggest that perhaps the twinkle is not in the star but in the eye of its beholder. This evening he explains how he has come to this conclusion.