In order to enrich the winter vacation life of young people in Tianlin community and let the children in the community absorb the power of scientific knowledge through cultural classics, Tianlin Street recently carried out the winter vacation activities of the community academy in the Party and Mass Service Center of the street community.
The teacher started from the peak duel between Lu Ban and Mozi, from the allusion of nine attacks and nine distances of "stopping Chu and attacking the Song Dynasty", to explaining the reasons for Lu Ban's invention and creation from military industry to civilian use. It also introduces the scientific story of "small hole imaging" in the "Book of Ink", which is the world's first experiment of "small hole imaging", which is the origin of the principle of modern photographic technology. What the children didn't expect was that Mozi had also studied the propagation of sound, and it was he who discovered that the well and poppy (small-mouthed, big-bellied bottles) had the effect of amplifying sound, and skillfully used it.
At the end of the activity, the teacher also distributed a copy of "Mozi" and a set of "Small Aperture Imaging" experimental kits to the children, and they will continue to follow the scientific footsteps of Mozi after class.
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Concerned about the new business group, this event "warms the heart and stomach" reporter: Yao Limin.
*Courtesy of Tianlin Street.
Editor: Geng Jieyu.
Reviewer: Wei Li.
*Please indicate that it is from the official account of Shanghai Xuhui.