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The short answer is probably not. See this article for a short description of how these things are done. For coins, the machine measures diameter, thickness and number of ridges (on part of the circumference - not the whole edge) so you may think that grinding the coins would affect this. However, because coins are treated pretty harshly - banging ...


12

Yes. The compressor motor will stall if you switch it off and on too quickly, resulting in an overload which can trip the circuit breaker and possibly overheat and damage the motor. A technical explanation of why this happens can be found at Electrical Engineering Stack Exchange: Why do refrigeration compressors stall when switched off and on quickly? (...


10

Were these pillars built using lathe? Yes, or more precisely given the lack of primary documentation, there is no reason to presume otherwise and is not considered controversial see here and here Evidence for the existence of lathes, at least for woodwork, goes back to, at least, Ancient Egypt. By the 11th century, it was a well established technology ...


5

Hoysaleswara temple was built in Halebidu (currently in the modern state of Karnataka, India) during the rule of King Vishnuvardhana Hoysaleswara of the Hoysala Empire in the 12th century and is one of the largest temples dedicated to the Hindu God Shiva in South India. The construction was started around 1120 CE and completed in 1150 CE. Many art ...


3

Given the reason for your question, I'd suggest an air vortex cannon as another device that could be used to that effect. On that basis, I will answer yes — air vortex cannons can knock over brick walls: https://www.youtube.com/watch?v=IyAyd4WnvhU#t=141


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