THE WORLD BEYOND OUR SENSES 



while the centre of the 

 electric - light arc is 

 generally estimated at 

 3000 degrees or even 

 3500 degrees ; these 

 latter measurements 

 cannot be very precise. 

 By the same meth- 

 ods, the temperature 

 of the interior of the 

 sun has been comput- 

 ed at 6000 degrees 

 centigrade, though the 

 figure may be much 

 higher 10,000 degrees 

 even ; nobody knows. 

 The estimate for 6000 

 degrees has some de- 

 gree of probability, and 

 it is fairly certain that 

 the temperature of the 

 sun is not much lower. 

 This is 6000 centigrade 

 degrees above freezing 

 water ; and what is 

 called "absolute zero" 

 is 273 centigrade de- 

 grees below this point. 



6300 



Absolute. 



3800 

 Absolute. 



The 

 World 



..ri.ii,.. 



( 373 

 (273 



Absolute. 



Absolute Zero, 



or Coldest 



Cold 



6000 C. 

 Temp, of the In- 

 terior of the Sun. 



3500 C. 



Electric Arc. 



55 



100 C. 



Boiling Water. 



C. 

 Freezing Water. 



273" ( 



The Temp. 



..f Space 



