Physics & Math

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  1. arfa brane
    Locked

    Mass is an interaction

    arfa brane, Oct 20, 2019 ... 4 5 6
    Replies:
    112
    Views:
    5,293
    James R
    Nov 1, 2019
  2. Interstella

    A 3d math question.

    Interstella, Oct 17, 2019 ... 2
    Replies:
    23
    Views:
    1,797
    LaurieAG
    Feb 4, 2020
  3. James R

    Interesting numerical games

    James R, Oct 11, 2019
    Replies:
    14
    Views:
    906
    phyti
    Oct 15, 2019
  4. arfa brane
    Locked

    Twenty questions with James R

    arfa brane, Oct 2, 2019
    Replies:
    1
    Views:
    587
    James R
    Oct 3, 2019
  5. Willem

    Non-square Determinants

    Willem, Oct 2, 2019
    Replies:
    2
    Views:
    603
    Willem
    Oct 3, 2019
  6. Confused2

    Can you transmit an impulse through free space and does it travel as sinewaves?

    Confused2, Sep 30, 2019
    Replies:
    10
    Views:
    1,088
    Ethernos D Grace
    Nov 26, 2019
  7. Tailspin

    Does quantum mechanics mean everything is quantised?

    Tailspin, Sep 17, 2019
    Replies:
    13
    Views:
    1,146
    exchemist
    Sep 21, 2019
  8. TheFrogger

    Staying up.

    TheFrogger, Sep 14, 2019
    Replies:
    1
    Views:
    554
    Jeeves
    Sep 15, 2019
  9. globali

    question for physicists-are all electrons the same?

    globali, Sep 10, 2019
    Replies:
    5
    Views:
    580
    DaveC426913
    Sep 10, 2019
  10. Michael 345

    42 solved

    Michael 345, Sep 9, 2019
    Replies:
    9
    Views:
    961
    TheFrogger
    Sep 12, 2019
  11. arfa brane

    The connection between time and information

    arfa brane, Sep 2, 2019
    Replies:
    4
    Views:
    497
    phyti
    Sep 4, 2019
  12. arfa brane

    What propagates in wave motion?

    arfa brane, Aug 31, 2019 ... 2
    Replies:
    24
    Views:
    1,548
    arfa brane
    Sep 22, 2019
  13. Magical Realist

    Rest mass of a photon

    Magical Realist, Aug 30, 2019 ... 2 3 4
    Replies:
    70
    Views:
    3,854
    James R
    Sep 12, 2019
  14. origin
    Locked

    Are photons energy? What is energy, anyway?

    origin, Aug 19, 2019 ... 20 21 22
    Replies:
    438
    Views:
    15,397
    James R
    Oct 1, 2019
  15. Mike_Fontenot
    Locked

    A Simple Example, and a Test

    Mike_Fontenot, Aug 4, 2019
    Replies:
    2
    Views:
    732
    James R
    Aug 23, 2019
  16. Mike_Fontenot

    When Does an Observer Become an Inertial Observer?

    Mike_Fontenot, Aug 2, 2019 ... 4 5 6
    Replies:
    107
    Views:
    6,069
    QuarkHead
    Sep 5, 2019
  17. wegs

    Ring sizes by mm

    wegs, Jul 31, 2019
    Replies:
    9
    Views:
    535
    James R
    Aug 4, 2019
  18. Confused2

    Model yachts and gyroscopes

    Confused2, Jul 29, 2019 ... 2 3
    Replies:
    41
    Views:
    1,860
    Confused2
    Aug 4, 2019
  19. Quantum Quack

    What would it take to prove Albert Einstein Wrong?

    Quantum Quack, Jul 23, 2019 ... 7 8 9
    Replies:
    164
    Views:
    6,685
    RainbowSingularity
    Aug 24, 2019
  20. Mark Turner

    What is entropy ?

    Mark Turner, Jul 17, 2019 ... 2 3
    Replies:
    59
    Views:
    2,853
    arfa brane
    Aug 12, 2019
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