Today: What I Have Learnt…

28 Mar

… From my Physics Degree.

Here is a list of 10 things that need to be known if you will pass a physics degree…

  1. Vectors, dot products and cross products. You can’t have a force without direction! Well you can, you’re just not going to get anywhere.
  2. The universe of homogeneous and isotropic. Forget this and you WILL FAIL anything for do with cosmology
  3. Integration. Mathematical tool, if in doubt, integrate the dam thing between zero and infinity then blag your results.
  4. Errors, Everything has errors, if you’re unsure on an answer say “within statistical error” and you should get away with anything else
  5. Units, the pain of everyones lives. Forget the units and you lose the marks. Unless it’s natural units, which equal 1….
  6. Everything is a spherical body made up of an infinite number of spherical shells… Now you can model EVERYTHING.
  7. light = particles = waves. No-one really knows why, to be honest not alot of people care. just accept this fact and move on…
  8. Conservation laws, If in doubt, do the following: Conservation of energy, then conservation of momentum (linear and perpendicular… VECTORS PEOPLE), Cons of Angular momentum, inertia, charge, mass… use which ever ones apply. This list is not exhaustive.
  9. Stirling’s approximation. Apply it everywhere. when you eventually know what it is…
  10. The most important thing of all. No matter what level you are at, what you are being taught, it’s all WRONG. There is always a better theory ‘just around the corner’.

However the Gravitational waves people have been saying that they are ‘just around the corner from discovering a grav wave’ for the past 6 or 7 years…. Bad example…

One Response to “Today: What I Have Learnt…”


  1. Peter and Jesus – Pathways To the Miraculous | Images of Jesus Christ - 31/03/2011

    […] Faith is that living power of God Also you can read this related blog page: […]

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