what does the word locomotive mean

As a thirteen-year-old, I started inside high school youth group. I was into rock and metal at the time along a crappy guitar that I used to attempt to play Metallica songs using tabs. I was only moderately successful in doing so rather than really learned any full songs and definitely didn't figure out how to really have fun playing the guitar, most certainly not in such a way where I could just pick-up playing the guitar and play from start to finish. However the humans living on the spaceship were different to the humans who will be living on earth now. They were so fat them to be struggling to walk. they travelled around in motorised chairs using a computer screen and cup & straw attached, chatting on phones and if they happened to fall out they only laid there until a robot arrived and picked them up. The adults were fat, your children were fat! They just laid around all day meals doing no exercise what so ever and to quote the captain, "Computer, define dancing". During the year 1930 there was clearly one engine which as on hype named as 'Ricardo' sleeve valve engine. Mirrlees the period introduced two Mirrleesengines represented this patent way of the valve engine. Well the previous had bore close to 5.5 inches and made a stroke of just about 6.5 inches and produced 20BHP each cylinder at rate of 900 r.p.m. one other had 17 inches bore and 21.5 inches stroke, giving 50BHP per cylinder with the rate of 200 r.p.m.