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https://youtu.be/oRE5HxZ2gGo

Ball and ring are used to demonstrate the thermal expansion and contraction Thermal expansion occurs when you heat a material and it gains more internal energy, and as the atoms within the material move around faster, and the materia...

Elon Reeve Musk FRS (born June 28, 1971) is a businessman and philanthropist. He was born in South Africa, moved to Canada, then became an American. Musk is the current CEO & Chief Product Architect of Tesla Motors, a company that makes electric vehicles, the CEO of Solar City, a company that makes solar panels, and the CEO & CTO of SpaceX, an aerospace company.

Happy birthday sir ..
Thank you so much to inspired the world

🙏Ideal🙏
(ELON_MUSK)
Opening date
19 June 2020