Commenting on or reporting errors in posts

This blog is mainly used by me to report new posts on physicspages.com, (you can sign up to new posts by entering your email in the box on the right) but you can also submit comments and error reports here. To make a comment or error report:

  1. Copy the title and/or the URL of the post you wish to comment on.
  2. Click on the <number> comments link at the end of this post (<number> is the current number of comments and will vary).
  3. If the <number> comments link isn’t visible, scroll to the bottom of the page until you find a ‘Leave a reply’ box.
  4. Scroll to the end of the comments and add your comment there.
  5. If you’re commenting on a particular equation in a post, please make sure you include the equation number in your comment.

Posted in Uncategorized | 3 Comments

Suggestions?

Now that the ‘old’ physicspages has been discontinued, I am considering how to use the site in the future (considering I’m in a contract to pay for the domain name for the next couple of years, so I’d like to use it for something!) I am thinking of perhaps posting some general articles about some aspects of physics and associated mathematics. The idea would be to take a topic which is often glossed over in textbooks and give a more detailed, in-depth look at it.

If anyone has suggestions as to what topics might be useful, or what other types of articles would be useful, please leave a comment below.

However…

Please note that I cannot accept requests to post solutions to problems taken from textbooks, or from assignments you have been given by a university or college. If you want help of that sort, please consult sites such as Physics Forums or Physics StackExchange.

Also, please note that my experience is fairly limited (the last time I was a ‘professional physicist’ was back in the 1980s), so I won’t be able to write articles on most of the areas currently in the frontiers of physics. Most of my expertise lies in topics commonly covered in undergraduate physics courses.

Thanks for your help.

Posted in Uncategorized | 2 Comments

Lorentz transformations

Lorentz transformations

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Spacetime diagrams – two observers

Spacetime diagrams – two observers

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Spacetime diagrams

Spacetime diagrams

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Postulates of special relativity

Postulates of special relativity

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Invariance of spacetime intervals

Invariance of spacetime intervals

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Relativistic units

Relativistic units

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No contraction in directions perpendicular to the motion

No contraction in directions perpendicular to the motion

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Finite square well – bound states, odd wave functions

Finite square well – bound states, odd wave functions

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Finite square well – bound states, even wave functions

Finite square well – bound states, even wave functions

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Ehrenfest’s theorem

Ehrenfest’s theorem

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