! Calculate Planck scales
LET c=3e8 !velocity of light, m s^-1
LET h=1.05e-34 !Planck's constant kg m^2 s^-1
LET G=6.67e-11 !Newton's constant m^3 kg^-1 s^-2
LET k=1.38e-23 !Boltzmann's constant kg m^2 K^-1
LET L_P = (h*G/c^3)^(1/2)
LET M_P = (c*h/G)^(1/2)
LET t_P = (h*G/c^5)^(1/2)
LET Temp_P = ((h*c^5)/(G*k^2))^(1/2)
PRINT "Planck's length, mass, time, and temperature scales"
PRINT "length (h*G/c^3)^(1/2), meters",L_P
PRINT "mass (c*h/G)^(1/2), kg",M_P
PRINT "time (h*G/c^5)^(1/2), seconds",t_P
PRINT "temperature ((h*c^5)/(G*k^2))^(1/2), K", Temp_P
END