Physics

3543 topics in this forum

1. Ethanol weight percentage -> volume percentage

   By CaptainPanic, July 2, 2008
   • 6 replies
   • 34.3k views
   • 
   • CaptainPanic
   • July 14, 2008

2. Magnetic Bullet Shield 1 2

   By Iruka, September 30, 2007
   • 34 replies
   • 34k views
   • 
   • morgsboi
   • March 1, 2012

3. Will entropy be low much of the time? 1 2

   By Tristan L, May 31, 2020
   • 42 replies
   • 32.8k views
   • 
   • swansont
   • December 20, 2023

4. Fire and the Electromagnetic Spectrum

   By hknight, May 23, 2006
   • 6 replies
   • 32.2k views
   • 
   • [Tycho?]
   • May 25, 2006

5. 2 Story Fall Death, Realistic?

   By KappaWing, September 17, 2007
   • 19 replies
   • 31.8k views
   • 
   • alan2here
   • September 20, 2007

6. Rotational and inertial mechanics, overunity mechanism? 1 2 3 4

   By Seanie, September 27, 2019
   • 90 replies
   • 31.7k views
   • 
   • swansont
   • October 5, 2019

7. Does density affect the refractive index of a liquid?

   By hypark, January 9, 2009
   • 6 replies
   • 29.4k views
   • 
   • pioneer
   • January 11, 2009

8. Is BArGaIn theory a fantasy????

   By sandund, October 12, 2011
   • 11 replies
   • 29.2k views
   • 
   • exchemist
   • September 29, 2022

9. Basic understanding of time 1 2 3 4 13

   By Sin Jeong-hun, January 20, 2014
   • 322 replies
   • 28.6k views
   • 
   • knyazik
   • November 17, 2014

10. Why E = pc and not E = 1/2 pc

    By somecallmegenius, November 8, 2012
    • 18 replies
    • 28k views
    • 
    • Peter Manchester
    • January 22, 2018

11. How to remove a magnet?

    By AThorn13, February 7, 2014
    • 7 replies
    • 27.1k views
    • 
    • Spyman
    • February 7, 2014

12. Difference Between High Frequency Signals & Low Frequency Signals

    By AL2448, August 31, 2008
    • 3 replies
    • 26.8k views
    • 
    • dwella
    • September 17, 2008

13. if you put 2 magnets together, is it twice as strong?

    By rogerxd45, March 24, 2010
    • 10 replies
    • 26.7k views
    • 
    • khaled
    • April 23, 2010

14. What exactly does the pull force of a magnet mean?

    By Shinok87, May 4, 2009
    • 8 replies
    • 24.9k views
    • 
    • Amr Morsi
    • August 19, 2011

15. formula for volts on a transformer

    By lboogy, May 2, 2007
    • 4 replies
    • 24.9k views
    • 
    • imp
    • May 23, 2007

16. what we know about Time 1 2 3 4 11

    By michel123456, March 4, 2012
    • 252 replies
    • 24.9k views
    • 
    • Klaynos
    • August 14, 2012

17. You Can Keep Your Hat On. 1 2

    By Vexer, April 25, 2008
    • 26 replies
    • 24.5k views
    • 
    • DrP
    • May 13, 2008

18. 911 WTC Molten Metal 1 2 3 4 9

    By Tree99, June 11, 2007
    • 212 replies
    • 23.1k views
    • 
    • Cap'n Refsmmat
    • June 19, 2007

19. What generates gravity? 1 2 3

    By ChrisDK, November 17, 2012
    • 68 replies
    • 23k views
    • 
    • alpha2cen
    • December 8, 2012

20. relation between mass and velocity

    By skulldude, May 23, 2008
    • 2 replies
    • 22k views
    • 
    • dirtyamerica
    • June 4, 2008

21. What material is best placed under a laptop to reduce heat?

    By charlie10, December 18, 2010
    • 14 replies
    • 22k views
    • 
    • michel123456
    • December 21, 2010

22. ridicule is not good science 1 2 3 4 9

    By Widdekind, November 13, 2011
    • 207 replies
    • 21.7k views
    • 
    • michel123456
    • November 21, 2011

23. Why does ice have no friction?

    By scilearner, June 6, 2010
    • 5 replies
    • 21.5k views
    • 
    • JamesNBarnes
    • June 6, 2010

24. Energy needed to reach 99% c?

    By Baby Astronaut, December 15, 2008
    • 24 replies
    • 21.2k views
    • 
    • Strange
    • November 22, 2015

25. Why the electrolysis is more efficient with hot water? 1 2

    By Magnethos, March 21, 2008
    • 31 replies
    • 20.8k views
    • 
    • SmithsConsortium
    • March 10, 2013