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Musings from a life working with cameras,
electronics, computers and code

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From Slide Rule to Calculator

Expired

When I were a lad...

By the time of 'O' level Maths we were using the old Four Figure Tables for looking up Sines, Tans, Logs etc. One thing it did teach you was an awareness of quantity and sanity checking of your answers - does it sound about the right size or have you slipped a decimal place or two.

For 'A' level in Maths and Physics something a bit more sophisticated was needed so for my 15th birthday my pride and joy was a Thornton slide rule, the double sided model with precision cursor in plastic. I also had an old one of my Dad's dating from when he was at college (Engineering at RNEC Manadon), also a Thornton but made of wood with engraved ivory (I think - might be fake) scales.

I still have them both - and they both still work (no batteries in these babies).

Read more … From Slide Rule to Calculator

Facebook Events on a Joomla Site

Expired

I spent yesterday evening grappling with getting events from a Facebook group to display and automatically update on a Joomla website. Sounds simple, and it ought to be, but there are the usual load of gotchas and quirks lurking in there.

What the client needed was two things - a module on the home page giving a list of forthcoming events, and a calendar as the main component on a dedicated page. No requirement to edit events on the website, just simply reflect events that are created in a Facebook group.

Tags:
Facebook:
facebook
Joomla:
Joomla

Read more … Facebook Events on a Joomla Site

Rainy Sunday Timezones

Expired

The visitors went home this morning and it rained - perfect opportunity to pick up on a long overdue task and update my SunUpDown Joomla module to work with Joomla v3 and incidentally extend it so that it can work outside Europe. No urgency, but I know that sooner or later the only one of my sites I use it on will need to go J3, and I had a few requests for it to work elsewhere - in the end I simply took it off JED in the hope that someone else would fill the gap.

Tags:
Joomla:
Joomla
Php:
php

Read more … Rainy Sunday Timezones

Displaying 3D Stereo Images

Expired

This week at (paid) work I have been mostly grappling with what sounded like a simple task - displaying a 3d image and recording the reaction time for a keypress - that turned out to be both more complex and simpler than at first it seemed.

Tags:
3d:
3D
Vb-net:
VB.NET

Read more … Displaying 3D Stereo Images

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  • April 2025
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  • November 2024
    • Assigning Tags to Items Programatically
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  • December 2022
    • A Preview facility for Joomla Component Admin pages
    • Link Hinting Revisited
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  • October 2022
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  • June 2022
    • of Luminance, Lightness and Brightness
  • May 2022
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  • September 2021
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  • April 2021
    • A Note on Browser Compatibility
  • March 2021
    • Spacing in Joomla Toolbar
  • February 2021
    • Points on the Scale
  • November 2020
    • Using Tags in a Component
  • September 2020
    • Using Joomla Subforms for Many-Many link tables
  • August 2020
    • Developing new Joomla Components
  • May 2020
    • Where did that year go
  • June 2019
    • TruncString Joomla bug
  • January 2019
    • of Tags in Joomla
    • Tags Layout for Article Info
  • June 2018
    • PD-Addon Component development
  • March 2018
    • Min and Max responsive font size CSS
  • June 2015
    • Anything over a mouthful is wasted
  • November 2014
    • A Rant at Apple
  • October 2014
    • HTML File Input Formatting
  • September 2014
    • Wireless EEG using Emotiv and EasyCap
  • August 2014
    • Displaying 3D Stereo Images
    • Facebook Events on a Joomla Site
    • From Slide Rule to Calculator
    • Rainy Sunday Timezones
  • January 2011
    • History
    • Welcome to Roger's Techie Talk
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