Physics & Math

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  1. BenTheMan
    Sticky

    Physics/Math References

    BenTheMan, Nov 12, 2007 ... 2 3
    Replies:
    55
    Views:
    34,236
    kevin78
    Aug 18, 2019
  2. Pete
    Sticky

    Displaying equations using Tex

    Pete, Dec 20, 2006 ... 5 6 7
    Replies:
    125
    Views:
    42,638
    James R
    Jun 23, 2019
  3. origin

    Are photons energy? What is energy, anyway?

    origin, Aug 19, 2019 ... 14 15 16
    Replies:
    319
    Views:
    2,942
    arfa brane
    Sep 24, 2019 at 8:45 AM
  4. Saint

    Is time travel possible based on theory?

    Saint, Jun 9, 2019 ... 7 8 9
    Replies:
    163
    Views:
    2,640
    Write4U
    Sep 23, 2019 at 12:42 AM
  5. arfa brane

    What propagates in wave motion?

    arfa brane, Aug 31, 2019 ... 2
    Replies:
    24
    Views:
    378
    arfa brane
    Sep 22, 2019 at 11:57 PM
  6. Tailspin

    Does quantum mechanics mean everything is quantised?

    Tailspin, Sep 17, 2019
    Replies:
    13
    Views:
    202
    exchemist
    Sep 21, 2019 at 9:11 PM
  7. PengKuan

    How to test length contraction by experiment?

    PengKuan, Jun 17, 2019 ... 5 6 7
    Replies:
    131
    Views:
    3,025
    phyti
    Sep 19, 2019 at 5:24 PM
  8. TheFrogger

    Staying up.

    TheFrogger, Sep 14, 2019
    Replies:
    1
    Views:
    88
    Jeeves
    Sep 15, 2019
  9. Michael 345

    42 solved

    Michael 345, Sep 9, 2019
    Replies:
    9
    Views:
    208
    TheFrogger
    Sep 12, 2019
  10. Magical Realist

    Rest mass of a photon

    Magical Realist, Aug 30, 2019 ... 2 3 4
    Replies:
    70
    Views:
    1,196
    James R
    Sep 12, 2019
  11. globali

    question for physicists-are all electrons the same?

    globali, Sep 10, 2019
    Replies:
    5
    Views:
    107
    DaveC426913
    Sep 10, 2019
  12. Mike_Fontenot

    When Does an Observer Become an Inertial Observer?

    Mike_Fontenot, Aug 2, 2019 ... 4 5 6
    Replies:
    107
    Views:
    2,337
    QuarkHead
    Sep 5, 2019
  13. arfa brane

    The connection between time and information

    arfa brane, Sep 2, 2019
    Replies:
    4
    Views:
    128
    phyti
    Sep 4, 2019
  14. Quantum Quack

    What would it take to prove Albert Einstein Wrong?

    Quantum Quack, Jul 23, 2019 ... 7 8 9
    Replies:
    164
    Views:
    2,721
    RainbowSingularity
    Aug 24, 2019
  15. Mike_Fontenot
    Locked

    A Simple Example, and a Test

    Mike_Fontenot, Aug 4, 2019
    Replies:
    2
    Views:
    322
    James R
    Aug 23, 2019
  16. wegs

    If there is no energy, does time exist?

    wegs, Jul 6, 2019 ... 8 9 10
    Replies:
    193
    Views:
    3,279
    phyti
    Aug 20, 2019
  17. Mark Turner

    What is entropy ?

    Mark Turner, Jul 17, 2019 ... 2 3
    Replies:
    59
    Views:
    1,376
    arfa brane
    Aug 12, 2019
  18. Lostinspace

    Is CERN a waste of money ?

    Lostinspace, Jul 5, 2018 ... 5 6 7
    Replies:
    133
    Views:
    5,563
    James R
    Aug 4, 2019
  19. wegs

    Ring sizes by mm

    wegs, Jul 31, 2019
    Replies:
    9
    Views:
    282
    James R
    Aug 4, 2019
  20. Confused2

    Model yachts and gyroscopes

    Confused2, Jul 29, 2019 ... 2 3
    Replies:
    41
    Views:
    915
    Confused2
    Aug 4, 2019
  21. Mark Turner

    Are atoms some sort of cold fusion ?

    Mark Turner, Jul 6, 2019 ... 2
    Replies:
    26
    Views:
    789
    Mark Turner
    Jul 26, 2019
  22. Mark Turner

    Is negative energy possible ?

    Mark Turner, Jul 11, 2019 ... 2
    Replies:
    26
    Views:
    834
    Seattle
    Jul 18, 2019
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