SPACE celebrated Winter Solstice with public outreach and with a large group of school students at Jantar Mantar, New Delhi
22nd December was the shortest day of the winter, i.e. the Winter Solstice when the Earth's axis in the Northern Hemisphere was tilted furthest away from the sun. After this day, the day lengths slowly increase again. This day is celebrated over the world in different cultures, the most famous celebrations being at Stonehenge. SPACE observed this day in Jantar Mantar in New Delhi.
SPACE conducted public outreach at Jantar Mantar. Thankfully, although Winter Solstice indicates the peak of winter unofficially, it turned out to be a glorious sunny day. A lot of tourists and general wanderers walked through and were happy to find out what the ancient 'Jantar's (Yantras- meaning Machines) or structures were actually used for and how they were used to measure locations and time using the sun's shadow or by observing celestial objects.SPACE conducted tours of the various instruments and explained their workings.
STEPL (Space Technology and Education Pvt. Ltd.), i.e. the education wing of SPACE conducted an experiment for school children. The competition titled 'Scientist of the Day' involved measuring the shadow of a long stick over a period of time and using the shortest shadow to find the Circumference of the Earth. This uses the concept that the sun rays shine directly overhead on the Tropic of Capricorn (the latitude line at 23.5° south, passing through Brazil, South Africa, and Australia) on the day of Winter Solstice. About 200 students from 15 schools from Delhi NCR participated in this competition, including schools such as The Airforce School, Subroto Park; DPS Sonepat; Ryan International School, Rohini; Step by Step, Noida; Apeejay School, Saket, etc. The students sat in groups amidst the green lawns surrounded by the ancient monuments and measured away for a couple of hours. It was a great experience for the teachers and students to be involved in such a project.
Experimental material such as Telescopes, Binoculars and Astrokits were provided by SPACE Arcade www.spacearcade.in.
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