• Skip to content
  • Jump to main navigation and login

Nav view search

Navigation

Search

  • Home
  • Contact
  • Support
  • Notable projects
  • Books and publications ►
  • Technical notes
  • Physics notes
  • ––––––––––––––––––––
  • Physics apps ►
  • Miscellaneous apps ►
  • ✨ GitHub projects ►
  • Products
  • ––––––––––––––––––––
  • Miscellaneous writings
  • My Web sites
  • BlogBlog
  • External links
  • Site news

Support my research and science communication efforts through Patreon.

Site news

Reorganized menus

Details
Created: 04 December 2024

I reorganized the menus of my site in an attempt to declutter things a little. Apps are now shown in submenus, and my publications page has also been broken up into several separate pages.

GitHub projects

Details
Created: 02 November 2023

I now added a new page and menu item with details on a few of my public GitHub projects, namely projects related to my research work.

Major, really major update

Details
Created: 08 August 2023

I had no choice. Support for Joomla 3 is coming to an end, and we cannot live with a content management system that no longer receives security updates.

So slowly, slowly, I went through all my Joomla Web sites (I have several) and updated them to Joomla 4. It was a painful process. The template I use for visual presentation is old (I know, I know, but that's a project for another day.) There were incompatibilities.

Also, back in those more innocent days when I began using Joomla (version 1.5!) I grabbed a few useful extensions in the hope that they'd make my life easier. They did... for a while. But eventually they turned into liabilities. Many of them are no longer maintained, and often, there are serious incompatibilities with Joomla 4. So I had to get rid of them, either rewriting pages to no longer rely on the component, or creating a replacement component myself.

Long story short, my Web site is now fully functional in the test environment where I am writing these words. If all goes well, within minutes I should be able to install this in the production environment as well. We shall see how it goes.

Physics calculators

Details
Created: 19 June 2021

Now that I not only have a much improved Hawking radiation calculator (which now correctly calculates black hole lifetimes) but also a simple cosmology calculator, I decided to make these calculators available directly from the site's top-level menu. Enjoy!

Translation of Kaluza's 1921 paper

Details
Created: 02 October 2017

I prepared a revised translation of Kaluza's 1921 paper on 5-dimensional spacetime used to unify gravity and electromagnetism. My version is based on a 1984 translation provided by T. Muta, but revised and formatted using LaTeX to closely match the original paper in appearance and pagination. I also restored Kaluza's original notation.

Multithumb fix

Details
Created: 08 July 2013

I use a third party Joomla extension library, BK-Thumb, to manage pictures on some of my pages. A recent Joomla update caused a spurious Multithumb error to show up on several of my pages that do not even use Multithumb features. This has now been corrected.

Miscellaneous section

Details
Created: 19 January 2012

Reorganized the Miscellaneous writings section, created a new subcategory for my ramblings from the pre-blog era.

Equation formatting

Details
Created: 17 December 2011

Tonight, I updated this site so that all pages that contain mathematical equations now use MathJax instead of the older jsMath. MathJax works much better, it seems, than jsMath, especially in Internet Explorer. Hopefully, the equations are still correct after all this formatting and reformatting. Hopefully, they were correct in the first place.

Settlement Date Calendar

Details
Created: 30 November 2011

Imported the NASDAQ Settlement Date Calendar, a Web application I developed years ago, into the CMS site.

Content management system

Details
Created: 26 November 2011

A new layout and a new engine: Moving my site to the Joomla! content management system is nearly complete. It was about time; my old site was soooo 1990s!

Reorganization

Details
Created: 14 November 2011

The start page is reorganized; I removed some obsolete content.

Spinor Info

Details
Created: 13 November 2008

My Day Book is now a blog (dang, I still hate this word): I purchased the domain spinor.info and set up a WordPress site there.

A new look

Details
Created: 05 February 2004

A new look: The Web site now has a nice menu, and it is better organized.

Physics notes

Details
Created: 19 November 2003

Organized my physics notes; added another, on the principle of gauge invariance.

Day Book

Details
Created: 10 August 2003

Added a link to my Day Book.

Another physics note

Details
Created: 06 June 2003

And yet another physics note: this one to explain why it isn't as easy as some would-be Einsteins think to disprove that the speed of light is constant.

Quantum physics

Details
Created: 12 March 2003

Added another note on quantum physics: specifically, on Quaternions and the Dirac Equation.

Quantum mechanics

Details
Created: 14 January 2003

Added some notes on Quantum Mechanics and on Bell's Theorem.

Portage Plus on Linux

Details
Created: 05 September 2002

Added a page explaining how to use Rogers' wireless Internet service from a Linux computer.

ActiveX controls

Details
Created: 09 June 2002

Updated the page containing my ActiveX controls that are available for sale.

Product Activation

Details
Created: 02 February 2002

Added a page on Product Activation.

HP Xpander

Details
Created: 17 January 2002

Yet another one-of-a-kind addition to my "calculator museum": the HP Xpander, another unreleased model.

Reorganization

Details
Created: 17 January 2002

Once again, reorganized the main page.

Pocket TELNET

Details
Created: 28 November 2001

Finished Pocket TELNET, a TELNET application for Windows CE.

Space stuff

Details
Created: 02 July 2001

New additions: a list of "live" deep space probes, and an interactive altitude map of the "seas" of Mars.

The W Programming Language

Details
Created: 20 February 2001

Completed the documentation on the W Programming Language

Marzipan

Details
Created: 09 November 2000

Marzipan the cat died.

Reorganization

Details
Created: 07 September 2000

Reorganized the main page.

British Legends

Details
Created: 17 August 2000

Link added to british-legends.com, home of the original Multi-User Dungeon, still one of the best online games after more than 20 years in existence

Mixing digital audio

Details
Created: 12 August 2000

I added some notes on mixing digital audio - a problem I encountered recently while working on a project.

Search

Details
Created: 21 April 2000

You can now search my Web site.

The TI-88

Details
Created: 21 March 2000

An amazing new addition to my calculator collection: a prototype of the never released TI-88.

IP tunneling

Details
Created: 28 February 2000

An interesting IP tunnelling problem and its solution.

Slackware Linux - because it works

 
Web site copyright © 1995-2025 Viktor T. Toth
Powered by Joomla!®