quality writing like yours these days. I honestly appreciate individuals like you!

Take care!! ]]>

There was the LIDAR System although it was not installed we had a very good idea as how it works.

there was the Sun Photo Meter. It works using the sun light.

The microwave radio meter.

Hope it is the begining for us for a bigger thing.

thank U prof. ]]>

% Sept. 23, 2011 @ New York City College of Technology (CUNY)

% contact: sadykov1@yahoo.com

close all,clear all

%%% Showing a Blackbody radiation plot (lambda vs. blackbody radiation)

% Constants

h=6.626E-34; % Planck’s constant (J*s)

c=3E8; % speed of light (m/s)

k=1.38E-23; % Boltzmann’s constant (J/K)

sigma=5.67E-8; % Stefan–Boltzmann constant: http://en.wikipedia.org/wiki/Stefan%E2%80%93Boltzmann_constant

lambda=.001e-6:0.01e-6:20e-6; % Lambda in microns

T1=300; % Temperature of Earth in (K)

T2=6000; % Temperature of Sun in (K)

T3=5260; % Temperature of Alpha Centauri B in (K)

% Blackbody radiation equation in 3 parts: for simplicity

A1=(h*c)./(k*T1.*lambda);

A2=(h*c)./(k*T2.*lambda);

A3=(h*c)./(k*T3.*lambda);

B=(2*h*c^2)./lambda.^5;

BB1=pi.*(B.*(1./(exp(A1)-1)));

BB2=pi.*(B.*(1./(exp(A2)-1)));

BB3=pi.*(B.*(1./(exp(A3)-1)));

% Plot of the radiation curve for the Earth, Sun, and Alpha Centauri B.

subplot(2,1,1)

plot(lambda,BB1,lambda,BB2,lambda,BB3)

% semilogy(lambda,BB1,lambda,BB2,lambda,BB3)

xlabel(‘Wavelength in microns’)

ylabel(‘Radiance in W*m^-2’)

legend(‘earth bb’,’sun bb’,’alpha centaury’)

subplot(2,1,2)

plot(lambda,BB1)

% semilogy(lambda,BB1,lambda,BB2,lambda,BB3)

xlabel(‘Wavelength in microns’)

ylabel(‘Radiance in W*m^-2’)

legend(‘earth bb’)

%%% Showing that B(lambda,T)=sigma*T^4

display (‘B(lambda2,T2)=zz and sigma*T2^4=zz1’)

zz=trapz(BB2)

zz1=sigma*(T2^4)./0.01E-6