On Tuesday 19th November, I had the privilege of attending the Science Spectacular at Cheltenham College with Dr Leonard, Dr Bagley and eight other lucky students. The evening was packed with captivating chemistry and physics demonstrations that both stretched our scientific knowledge and provided immense fun.
Some of the standout experiments included the classic hydrogen balloon explosion, the stunning luminol on a Lissajous pendulum which combined chemistry and physics to create artistic patterns, and the reaction between NO and CS₂ (nitric oxide and carbon disulphide), which produced a mesmerising blue glow.
Another memorable demonstration involved calcium carbide reacting to form acetylene gas, leaving behind a black ash that resembled a ghostly figure from Harry Potter. Each experiment was not only visually striking but also highly educational.
The highlight of the evening was undoubtedly the liquid nitrogen demonstration. The teacher showcased its unique properties, even briefly placing his hand in the liquid to illustrate how the extreme temperature difference prevents freezing. To conclude the show, they used liquid nitrogen to freeze ice cream, which we were happy to taste - it was delicious!
I would like to extend my gratitude to Dr Leonard and Dr Bagley for organising this trip, and to Cheltenham College for providing us with the opportunity to witness experiments that we rarely see in a classroom setting. This experience deepened my appreciation for science and left me inspired to explore further into the fascinating worlds of chemistry and physics.
Izzy, SFC1
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