MOVING PICTURES 



453 



Science and moving pictures. Moving pictures have been 

 used to illustrate many interesting things in nature. In 

 order to show the opening of a flower or the entire growth of 

 a plant from seed to blossom, the camera is focused on the 

 object, and a picture is taken every half hour or so during 

 the entire period. These pictures are then shown rapidly 

 on the screen, and what really takes several weeks or months 

 in nature is shown here in a few minutes. In a similar way, 

 films show the development of caterpillars into butterflies, 

 the development of the house fly, the development of the 

 chick in "the egg, and the 

 breaking of the egg. A 

 number of moving pic- 

 tures of birds feeding 

 their young have been 

 made. 



Through the use of the 

 microscope moving pic- 

 tures have been taken of 

 such small objects as bac- 

 teria. In Connection with FIG. 180. Birth of a flower. Film for 



the use of X-rays, pictures d v ' 8 t h *" growth on * d ' 4th ' 6th 



have been taken showing 



the motions of the stomach of a frog during the process of 



digestion. 



" Animated newspaper . " One of the more recent develop- 

 ments in moving pictures is the animated newspaper. This 

 is edited and planned in a way similar to the ordinary paper. 

 The purpose is to obtain moving pictures of the more im- 

 portant daily news items in various parts of the country. 

 Operators are kept in various sections of the country to 

 obtain pictures of news of special interest in these different 

 localities. The films are sent to the main offices of the 

 paper, where positive films are quickly made ready to send 

 out to the subscribers. This work is done with great rapid- 



