It’s that time of year again (at least in this southern region) to fire up the lawnmower and make for a presentable abode. The recent Wired article on transgenic lawns is as captivating as any Wired article. I find it to essentially be a rebuttal to some NYTimes cover story that they reference. In short, the Wired article claims that the transgenic grass is not taking over Oregon as some apparently believe, and that even though transgenic has a negative connotation – plant life is plant life – the more of it the better we all are. What’s wrong with boosting a grass’ DNA to be immune to one of our man-made pesticides anyway? Probably something, but nobody knows what. I would think the answer is so utterly impossible to predict that your most erudite global ecologists will have an opinion as defensible as Kurt Vonnegut would might have. So I’m sitting the fence on this one.
And short of ripping up our yard and installing a xeriscape (my friend says “xeriscape just means your yard will look like crap”). I’ll be plowing down the St. Augustine that I so cherish every week in my two-stroke polluter. The neighbor newsletter once extolled the benefits of a push mower – doesn’t pollute (chemically or aurally) and you get a ton of exercise. So, my idea for the day is to find something between a mower powered by human-yoking and a mower powered by an internal combustion engine. The answer to me seems obvious – a bicycle mower! Think of it, bike parts are so well-evolved.
You won’t go fast, so you’d need basically some low gearing to move both the wheels and the blades. Perhaps a flywheel is in order to keep the blades spinning fast and evenly. Of course, safety will demand a brake or two (one on the blades and one on the wheels). Plus there’s the issue of bike tires on your lawn. You’d need fatter tires to prevent damaging the lawn – perhaps like mountain-bike tires from a kids bike – only fatter.
Here are two ideas, the first is a recumbent with blades. Careful getting on and off!
This one is hybrid of the gym stair climber, the roomba, and the segway.
You’d get a good view of where the blades were – maneuverability could be a plus if you could design the geartrain.


