G'day Max and MF Max, when I first saw this video I was reminded of ... history ...
In the 19th century bigger mowers were powered by big power units ... animals. That was the whole basis for shanks' large 1850s lawnmowers.
By the late 19th century steam was applied to large lawnmowers. Yes, the engines were ridiculously big and domestic lawnmowers were out of the question.
By the early 20th century, the first petrol powered lawnmowers appeared - but they were large too.
The domestic, powered lawnmower became a reality because of the advent of the small IC engine and the small electric motor.
I guess the 'Gasifier' lawnmower demonstrates the practical truth - that large engines are impractical for domestic lawnmowers.
I guess that electric battery technology has shown us - in the modern world - just how small energy units can be!
