User talk:Dr Greg

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WikiProject Yorkshire Newsletter - June 2017[edit]

Delivered June 2017 by MediaWiki message delivery.
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21:54, 3 June 2017 (UTC)

Rindler chart[edit]

Rindler chart.svg

Hi, in a former version of Rindler coordinates, you wrote that the Rindler chart on the left is plotted for g=1 (or α=1 in my notation). However, when I tried to recreate the plot using WxMaxima, I obtained the same result only by using α=0.5. The same observation was also made on https://mathematica.stackexchange.com/a/26647. Therefore I changed the text in the current article to α=0.5. Do you agree? --D.H (talk) 09:29, 29 June 2017 (UTC)

As it's some years ago since I did this, I can't remember exactly how I did this, but I'll look into my archives and hopefully will be able to find the MATLAB code that I used, and check it out. As two different people have got a different plot to mine, it looks like I may have made a mistake. I'll get back to you, hopefully within the next few days. -- Dr Greg  talk  18:35, 29 June 2017 (UTC)

WikiProject Yorkshire Newsletter - July 2017[edit]

Delivered July 2017 by MediaWiki message delivery.
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13:04, 1 July 2017 (UTC)

WikiProject Yorkshire Newsletter - August 2017[edit]

Delivered August 2017 by MediaWiki message delivery.
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11:01, 2 August 2017 (UTC)

A beer for you![edit]

Export hell seidel steiner.png Thanks for fixing the map I uploaded as an SVG, not sure why it didn't crop it when I exported like it usually does. Have a beer on me! ;) Yamhamdan (talk) 19:43, 10 August 2017 (UTC)