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Category: Website Updates
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As i devot a lot of time and energy writing the articles, i have decided to ask for a voluntary contribution from my regular readers via tipeee .
 
This could at least cover the expenses of the web site hosting and maintenance.
You can give 1€ or 3€ only one time or monthly.
 
https://fr.tipeee.com/einsteinrelativelyeasy
 
I thank you all in advance for your generosity ;-)