It's also a notoriously difficult experiment to perform. When I did it at university, the value of G I got was out by an order of magnitude - and that was considered a good result!
That was also a last-ditch effort to maintain pre-WW2 geopolitical structures rather than a bipolar US-sphere vs Soviet-sphere world. Note that this was basically the nail in the coffin that led to their full-fledged decolonization in the following years. At the time the UK still held very significant military and political sway over the middle east, east africa, and asia
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