Amazing machine

This machine lays brick roads.

http://twistedsifter.com/2012/07/tiger-stone-brick-laying-machine-prints-roads/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+Twistedsifter+%28TwistedSifter+%29

At first glance, I thought it was an Onion video or similar, since loose, heavy things unsupported do not maintain form. But, pressure from each brick upon every other brick maintains form, as do the guides inside the machine, shown in the video for a couple of seconds.

I read somewhere that all inventions are cause by laziness and/or greed. That’s cynical. Inventions are brought about by perceived need to lessen the amount of human physical labor to get a job done. There is profit motive, too, from the inventor and the doer.

Linked from www.coyoteblog.com