Show XEWTOIVS TELESCOPE Newton fashioned a concave mirror from a mixture of copper and tin which gives a surface with almost the lustre of silver An image of the star was produced pro-duced in the focus of this mirrpr and then this Image when examined by a magnifying eyepiece permits the astronomer astron-omer to study the stars at what is equivalent equiv-alent to a greatly reduced distance Such is the principle of the famous reflecting telescope which bears the name of Newton New-ton The little reflector which he conctruct ed is still preserved ts one of the treasures treas-ures of the Royal Society The telescope tube had the very modest dimensions of one Inch in diameter It was however the precursor of a whole series of magnificent mag-nificent instruments each outstripping the other in magnitude until at last the culminating point was attained In the construction of Lord Rosses mammoth R igt P six feet In aperturejool I Words I I |