Physics

3543 topics in this forum

1. static electricity experiment

   By the guy, February 10, 2010
   • 2 replies
   • 1.6k views
   • 
   • the guy
   • February 13, 2010

2. 't Hooft's guide to becoming a bad theoretical phyicist

   By ajb, February 5, 2010
   • 3 replies
   • 1.5k views
   • 
   • ajb
   • February 12, 2010

3. What is second cubed?

   By seriously disabled, August 23, 2009
   • 13 replies
   • 17.9k views
   • 
   • swansont
   • February 12, 2010

4. How does elastic recoil of arteries stop blood pressure going to zero?

   By scilearner, February 10, 2010
   • 0 replies
   • 928 views
   • 
   • scilearner
   • February 10, 2010

5. Why does blood pressure decrease when you stand up from a lying down position?

   By scilearner, February 9, 2010
   • 6 replies
   • 3.4k views
   • 
   • evan7777
   • February 10, 2010

6. Shadow Optics

   By Proteus, February 9, 2010
   • 0 replies
   • 779 views
   • 
   • Proteus
   • February 9, 2010

7. Complete Vacuum and Particle/Wave

   By Mukilab, February 2, 2010
   • 7 replies
   • 1.2k views
   • 
   • swansont
   • February 3, 2010

8. What is meant by friction loss?

   By scilearner, February 2, 2010
   • 2 replies
   • 605 views
   • 
   • scilearner
   • February 3, 2010

9. Does anyone know where to find good physics and math courses online?

   By cdub2raw, January 13, 2010
   • 10 replies
   • 2.4k views
   • 
   • seouldavid
   • January 31, 2010

10. Space 1 2 3 4

    By blood_pardon, January 20, 2010
    • 96 replies
    • 10.2k views
    • 
    • ydoaPs
    • January 30, 2010

11. What is the minimum intensity laser possible?

    By Green Xenon, January 21, 2010
    • 3 replies
    • 1.1k views
    • 
    • Bob_for_short
    • January 29, 2010

12. vacuum evaporation

    By Andy Ward, January 21, 2010
    • 6 replies
    • 2k views
    • 
    • CaptainPanic
    • January 25, 2010

13. how many watts does it take to kill?

    By the guy, January 22, 2010
    • 8 replies
    • 35.7k views
    • 
    • John Cuthber
    • January 23, 2010

14. Danger of Space Trash

    By mehran, January 21, 2010
    • 1 reply
    • 860 views
    • 
    • toastywombel
    • January 21, 2010

15. charging bottles

    By the guy, January 20, 2010
    • 2 replies
    • 721 views
    • 
    • the guy
    • January 20, 2010

16. Coherent light without laser -- possible?

    By Green Xenon, January 20, 2010
    • 2 replies
    • 1.1k views
    • 
    • swansont
    • January 20, 2010

17. everything is still here

    By lucky45, January 11, 2010
    • 14 replies
    • 1.5k views
    • 
    • Sisyphus
    • January 20, 2010

18. 400 nm laser that emits 1-photon-per-second -- possible?

    By Green Xenon, January 19, 2010
    • 9 replies
    • 1.5k views
    • 
    • John Cuthber
    • January 19, 2010

19. Physics behind blood vessel constriction and blood pressure?

    By scilearner, January 4, 2010
    • 6 replies
    • 4.4k views
    • 
    • Rickdog
    • January 17, 2010

20. transformers instead of voltage multipliers

    By the guy, January 8, 2010
    • 8 replies
    • 1.5k views
    • 
    • Externet
    • January 8, 2010

21. Physics Lectures

    By Mukilab, January 8, 2010
    • 0 replies
    • 748 views
    • 
    • Mukilab
    • January 8, 2010

22. How does difference in static pressure create flow?

    By scilearner, January 7, 2010
    • 3 replies
    • 1.6k views
    • 
    • scilearner
    • January 8, 2010

23. What are inhomogenous, disordered and partially ordered systems?

    By seriously disabled, January 7, 2010
    • 3 replies
    • 933 views
    • 
    • timo
    • January 7, 2010

24. Why doesn't a high pressure container have higher pressure loss?

    By scilearner, January 7, 2010
    • 0 replies
    • 651 views
    • 
    • scilearner
    • January 7, 2010

25. I think I understood Bernoulli principle but I need to clarify one thing quickly

    By scilearner, January 6, 2010
    • 1 reply
    • 654 views
    • 
    • Bignose
    • January 7, 2010