A kaleidoscope is an optical device consisting of mirrors that reflect images of bits of coloured glass or other objects in a symmetrical geometric design through a viewer. The design may be changed endlessly by rotating the section containing the loose fragments.
Welcome 2021 – hope to solve covid-19 mysteries
Today – 31st December – is the last day of this year 2020. We all are going to say ‘bye-bye 2020’ and making ourselves ready … Read more