Evaluate the energy of the blackbody photons inside your eye. compare this with the visible energy inside your eye while looking at a 100-w light bulb that is 1 m away. you can assume that the light bulb is 100% efficient, although in reality it converts only a few percent of its 100 watts into visible photons. take your eye to be a hollow sphere of radius 1.5 cm at a temperature of 37◦c. the area of the eye’s pupil is about 0.1 cm2. why is it dark when you close your eyes?

Click the game tab at the bottom of the simulation and select level 1. (there is no seesaw balance for this part of the activity.) balance the first equation, and click check to see if you got it right. if you can’t balance it in the first try, you can try again. work through the five equations for level 1. click continue to go on to level 2, and later level 3. each level is more difficult than the one before. keep trying until all the equations are balanced. in one or two sentences, describe how you did in the balancing game. in a few more sentences, explain one strategy you learned for balancing more complex equations.