but in 1980, pnm was site of one of the deadliest u.s.rison riots where inmates killed 33 of their own. >> jumped off february. almost by accident. big thing i couldn't get out of my head is they actually did it. we actually took the place over. >> james whittington survived the riot to return to the old main facility to show our producers what he witnessed. >> 27 years ago when i got up out of here. i didn't think i would ever see it again. leadership of the inmates decided hey, you know, this control center is takable. there was a huge industrial fire extinguisher that used to sit on one of these walls on hooks. three individuals lifted that industrial fire extinguisher off and said work on this window right here. the window began to give in. all three of these windows were taken out. >> once they broke that, they had access to the entire facility. they had full control. >> this is where it all turned bad after they busted up and got their hands on the dope. >> there's different kinds of psychotic drugs and whatever. and everybody was t

copied byntually every pnm manufacturer in the world. throughpoint, i've gone an abbreviated synopsis of some of the first 23 chapters in the book. it's time now for some fun, so chapter 24 is a visual quiz of 25 models to see if you can guess what the invention is. let's try one and see how you do. please raise your hand if you think this is a circumference a healy onevice, cradle or acking coin sorter. it looks like coin sorter got the most votes, and .nfortunately, you are wrong it is a heliometer. a heliometer is a type of sundial. now you know at least one correct answer on the quiz. [laughter] another unusual and innovative part of the book is chapter 25, six pet models you can make. the models are an electromagnetic motor, a reversible lounge, a mousetrap -- of course -- pigeon starter, rowboat, and a washing machine. complete instructions are included to allow the reader to build thereon replica of the model using 3-d printing, conventional techniques, and other methods and materials. one of the models you can replicate is the pi