TABLE 1 



Useful Constants of the Flow Medium 



Units 



Fresh Water 

 20°C 



Ref 10 



Sea Water 

 2Q°C 



Ref 10 



Air 

 0°C 



Ref 11 



/ cal (cm sec C)"^ 



^3 • ° 1 



V joule (cm sec C) 



1.43xl0~3 

 5.98x10-3 



1.34x10-3 

 5.60 X 10-3 



0.533 xlO-"* 

 2.23 xlO-'* 



Cp cal (gm C)~^ 



1.00 



0.993 



0.24 



Pg gm cm~3 



1.00 



1.025 



1.293x10-3 



Vq cm/sec 



0.0896i- 

 ad 



0.0825-^ 

 ad 



10.76-^ 

 ad 



U-"^ (ft/sec)-^ 



18.4# 







^b 



1.68v^ 

 b 



TABLE 2 



Useful Constants of Wire Materials 



Units 



Platinum 

 Ref 12 



Pt-lr 

 Ref 13 



Tungsten 

 Ref 12 



Nickel 

 Ref 12 



a 1000 lb in.-2 



35 



145 



500 



46 



a (°C)-1 



0.0035 



0.00085 



0.0045^ 



0.0069 



Tq 10 -^ohm-cm 



11.4 



32.9 



5.5 



6.84 



To °C 



20 



20 



20 



20 



p^ gm cm-3 



21.45 



21.6 



19.3 



8.9 



Cp cal(gm°C)-i 



0.0314 



0.032 



0.032 



0.112 



K^ cal (cm sec °C)-^ 



0.165 



0.042 



0.48 



0.22 



R^n ohm cm-^ 



2.25^2 



6.50 rf-2 



1.077^-2 



1.35 d-^ 



/<2^/a/?Q (amp)^ * 



0.759 d^ 



1.048 d^ 



1.223 d^ 



0.644 c^2 



m (amp)2 sec * 



0.0108 c^'* 



0.0149 d'^ 



0.0173 d"^ 



0.00913 rf"^ 



♦Numerical values given here for K^I/uRq and m are based on a flow medium 

 of fresh water. 



