Classical Physics

2836 topics in this forum

1. Problem with Newton's law of universal gravitation

   By Harald Linke, January 13, 2019
   • 18 replies
   • 1.7k views
   • 
   • Raider5678
   • January 16, 2019

2. What is torque, really? Can it be determined for a point on a circle that is away from the center of the rotation axis by a radius “r”?

   By Classical Physicist, November 11, 2019
   • 18 replies
   • 4.8k views
   • 
   • studiot
   • November 15, 2019

3. Thought experiment about entropy

   By Matthew99, January 9, 2021
   • 18 replies
   • 1.8k views
   • 
   • studiot
   • March 13, 2021

4. Bore width of wind instruments

   By Enthalpy, July 18, 2017
   • 18 replies
   • 3.7k views
   • 
   • sethoflagos
   • April 9, 2021

5. EMP protection for external computing HDDs

   By Erina, October 22, 2022
   • 18 replies
   • 1.3k views
   • 
   • Erina
   • October 26, 2022

6. Does anyone remember when it was claimed that microwave ovens cooked food from the inside out?

   By Paulsrocket, January 14
   • 18 replies
   • 1k views
   • 
   • John Cuthber
   • January 18

7. About the physics of construction......

   By albertlee, April 18, 2004
   • 17 replies
   • 2.6k views
   • 
   • albertlee
   • April 20, 2004

8. Penrose is number 3 friggin best seller

   By Martin, August 7, 2004
   • 17 replies
   • 2.3k views
   • 
   • Martin
   • August 28, 2004

9. Waves of water and sound.

   By reverse, May 28, 2005
   • 17 replies
   • 1.9k views
   • 
   • Ophiolite
   • May 28, 2005

10. where is the relative wind velocity on this boat???

    By albertlee, June 27, 2005
    • 17 replies
    • 3.5k views
    • 
    • Martin
    • June 29, 2005

11. measuring distance

    By Mart, June 28, 2005
    • 17 replies
    • 2.2k views
    • 
    • Mart
    • June 30, 2005

12. perfectly rigid collision

    By freefall, November 17, 2005
    • 17 replies
    • 3.5k views
    • 
    • J.C.MacSwell
    • November 18, 2005

13. free fall scenario

    By beckerman, September 3, 2006
    • 17 replies
    • 2.7k views
    • 
    • Spyman
    • September 11, 2006

14. Pressure in a cylinder

    By nitro, January 3, 2008
    • 17 replies
    • 2.6k views
    • 
    • John Cuthber
    • January 13, 2008

15. reflection change direction of a wave front

    By timetes, February 2, 2009
    • 17 replies
    • 2.8k views
    • 
    • swansont
    • February 25, 2009

16. Road markings

    By tomgwyther, September 24, 2010
    • 17 replies
    • 4.5k views
    • 
    • John Cuthber
    • February 9, 2011

17. Can you make a concept of the 5th dimension?

    By R A J A, August 21, 2011
    • 17 replies
    • 8.1k views
    • 
    • Esis
    • June 22, 2012

18. Why does light bend under Newton's law?

    By Edward Wechner, December 3, 2012
    • 17 replies
    • 3.6k views
    • 
    • hypervalent_iodine
    • December 17, 2012

19. Electric current makes magnetic field, why?

    By alpha2cen, January 29, 2011
    • 17 replies
    • 18.6k views
    • 
    • SomethingToPonder
    • February 1, 2013

20. Is there angular force? Tangential force? Why is Tangential F scaled twice for Torque?

    By Subliminal, November 30, 2013
    • 17 replies
    • 2.7k views
    • 
    • Endercreeper01
    • December 8, 2013

21. Force and Mass

    By Deepak Kapur, May 27, 2014
    • 17 replies
    • 2k views
    • 
    • Strange
    • June 8, 2014

22. J Shape Liquid

    By HANSCHETI, January 7, 2015
    • 17 replies
    • 1.9k views
    • 
    • John Cuthber
    • January 9, 2015

23. Why do we need Gears

    By Harish Kumar, December 7, 2010
    • 17 replies
    • 16.2k views
    • 
    • Pantaz
    • November 13, 2016

24. Infinite dielectric permittivity?

    By Moreno, March 3, 2017
    • 17 replies
    • 2.6k views
    • 
    • Moreno
    • April 17, 2017

25. Why do cathode ray tubes have to contain a gas at LOW PRESSURE?

    By mahela007, July 1, 2009
    • 17 replies
    • 30.8k views
    • 
    • Maheen
    • September 11, 2017