PV Gap

Janet Said:

Solar Spectrum Question helps!!!!!!?

We Answered:

All except A are correct. Here is why.

Absorption lines in the visible are produced when an electron in the first excited state n=2 absorbs a photon and jumps to n=3,4,5,6. Absorption from this state (or de-excitation to) is called the Balmer series. This is what B&C say.

As the Sun's surface is too cool to populate the n=2 state in large quantities, most absorption takes places from the ground state, n=1, which is called the Lyman series, and which are in the UV. And this is D&E.

Bernard Said:

Do clear solar covers really heat better than blue/black ones?

We Answered:

I don't believe they work any better than the blue/black ones. The reason that solar collectors are dark color is to absorb the most amount of light. Black color is composed of the whole color spectrum. In chemistry, blackbody means it absorbs all light falling on it and does not emit/reflect it back out. Basically if you have two room one lighter color and one dark color, you will notice that the lighter color room will appear brighter since light is being reflected. In a darker color room, the most of the light is being absorbed so it will appear dimmer. You'll notice that solar calculators have the solar collector in dark color like black.

Stephanie Said:

Teens: Have you ever seen a black person with blue eyes?

We Answered:

Yep I have a few times and two of them were fully Black. Black people can be born with blue eyes too. Just the other day I saw a light skinned baby with sky blue eyes and she was gorgeous. I say go for it:)

Lillian Said:

Pilot Door Handles - Solar LED Kit (Blue)?

We Answered:

Side marker lights have to be amber in front and red in rear. If driving with neons is illegal in your state/city, you can bet the door handles will attract unwanted attention, also.

Curtis Said:

Have you ever seen a black person with blue eyes?

We Answered:

The actor Michael Ealy has naturally blue eyes.

http://cdn.concreteloop.com/wp-content/u…

Skin color doesn't matter IMO. Blue eyes fit some people, but not all.