The students of Kolkata successfully created the Guinness World Records for the largest astrophysics lesson (45 minutes) and assembly of spectroscopes by successfully achieving the feat at the Science City, Kolkata on 5th November at the India International Science Festival (IISF) 2019 where over 1,598 students participated.

These student came from various districts of West Bengal. Astrophysics lesson of 45 minutes was held and students also made small personal model of advanced spectroscopes using a box made of cardboard that has a very narrow window used to channel light into the spectroscope.

Astronomers use spectroscopes to know details like temperature, chemical composition, etc. of celestial objects hundreds or millions of light years away from us.

A piece of a Compact Disc is used to split the light by a process called diffraction. This attempt was dedicated to Meghnad Saha and C. V. Raman.

Kolkata, the host city of the 5th IISF-2019 is home to renowned scientific institutions that have been the workplace of pioneering scientists who gave shape to science in India. IISF is the largest science festival in the world. The theme for this year’s festival is RISEN India –Research, Innovation and Science Empowering the Nation.