1 



344 



Popular Science Monthly 



A lecturer has charge of the health car and gives an open air session wherever he 

 stops. It has been found possible to show fairly clear pictures even in broad daylight 



Teaching Health Lessons with Auto- 

 mobiles and Motion Pictures 



IN order to extend its campaign of educa- 

 tion among school children, the North 

 Carolina State Board of Health is using an 

 automobile that is a veritable moving 

 picture booth on wheels. The car carries 

 a projection machine which can be taken 

 out and placed on the ground so as to 

 throw a picture on any wall. The power is 

 furnished by an engine generator. A large 

 sheet is hung on the wall when the state 

 officials wish to show a motion picture. 



The department has its own reels, to 

 point out reforms which it advocates. 



A Motor-Manikin Which Waves 

 Its Arms and Yells 



YOU have seen those strange little folk 

 that decorate automobile radiators. 

 Well, the inventors have add- 

 ed a new member to the family 

 — a manikin which throws up 

 its arms to indicate the direc- 

 tion to be taken by the car 

 and then shouts menacingly 

 at you. A simple horn attach- 

 ment does the shouting; the 

 arms move in and out by 

 means of magnets. 



Claud A. Reese, of Bowling 

 Green, Florida, has devised a 

 manikin with its arms pro- 

 vided with electric lights so 

 that it will work at night. 



When the driver presses a button the 

 figure's arm goes up, and by pressing 

 another button, which operates the horn, 

 the mouth of the manikin opens and he 

 yells realistically. 



The arms are fastened to the figure's 

 body with hinges and are operated by a 

 pair of electromagnets. The magnets are 

 placed in the upper parts of the legs in a 

 vertical position so that they carry move- 

 able armatures. Rods connect the arms 

 to the armatures, and when the solenoids, 

 are energized a downward or an upward 

 pull is communicated 

 to each of the arms. 

 With its arm-lamps 

 lighted, the figure 

 makes an impressive 

 appearance, which 

 is sure to be noticed. 



S01.ENCI0 

 MAGNETS 

 F0ROPERATIN6 

 ARMS 



The motor manikin's arms indicate the direction which 

 the car will take as he shrieks a warning. At right is 

 shown the interior mechanism and magnets of the figure 



