Tag

Convex Lens

Why Is Our Galaxy Shaped like a Spiral?

May 28, 2020

A galaxy is a huge number of stars grouped together. Our galaxy contains about 1,00,000 million stars. It looks like a disc with a flat cen

January 25, 2016

How Does a Magnifying Glass Work? A magnifying glass makes the words and letters on a page look much larger because of the way in which it b