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Kaapi with Kuriosity
Speaker
Umesh Waghmare (JNCASR, Bengaluru)
When
4pm to 5pm Sunday, 14 April 2019
Where
J. N. Planetarium, Sri T. Chowdaiah Road, High Grounds, Bengaluru
Resources

Principles of symmetry are the most fundamental ingredients of our physical description of nature evolved over the last century: (a) permissible physical laws and interactions are constrained by symmetry and involve regularities irrespective of diverse systemic details, (b) spontaneous symmetry breaking results in the texture of the world we live in. We illustrate these beautiful ideas by posing a few curious questions about the things we readily find around us: (i) Why is momentum of an object conserved? (ii) Why does a transverse sound wave can exist in a crystal, but not in a liquid? (iii) How does a magnet lose its magnetic property above Curie temperature, (iv) Why does a magnet not feel any force in static electric field?, and (v) How ZnO crystal exhibits piezoelectric property of technological importance, and why MgO does not?