SUN AT THE HORIZON. 



377 



A. As the air absorbs and dimin- 

 ishes light, the higher we ascend, the less 

 light will be absorbed. 



Q. Wliy does tlie SUN seem I.A.EGEB at his 

 EISE and SET, than it does at NOON? 



A. Because the earth is surrounded 

 by air, which acts like a magnifying glass; 

 and when the sun is near the horizon 

 (as its rays pass through more of this air), 

 it is more magnified. 



Here S C represents a ray of the sun at noon, and 

 M C a ray of the sun near the horizon. 



Ka3 





