http://www.cwhdallas.com/visible-solar/
Visible Solar
 |
 |
Visible Solar System Cartridge Commodore 64 C64 C128 Tested Working |  |
 |
US $8.00 | 28d 5h 46m |
 |
COMMODORE VIC-1930 VISIBLE SOLAR SYSTEM VIC-20 Game Cartridge Tested Works | |
|
US $7.50 | 6d 19m |
 |
COMMODORE VIC 20 Visible Solar System tested cartridge | |
|
US $13.99 | 18d 12h 49m |
| Powered by phpBay Pro |
| Account limit of 2000 requests per hour exceeded. |
Solar Spot Lights: Powerful Night Lighting
Solar spot lights, just like the other popular outdoor solar lighting, rely on the energy coming from our sun to offer sufficient lighting during the night time. And because the gadget runs on solar power, home owners need not connect into the electric grid to operate. This is great news, since dependence on the solar energy would only mean these solar spot lights will still work despite any possible incidents of brownout.
This type of outdoor solar lights is available as a single lighting unit or as a set of lights. Usually a pair of these lights comes with a corresponding solar panel which can be placed either near or far away from the lights. It is recommended that the solar panels of the lights are placed a few feet away from them.
The distance between the panels and these outdoor solar lights themselves actually allow for the former to optimally accept the energy from the rays of the sun, whether or not the lighting devices are exposed to the sun rays themselves. And while the solar panels of the spot lights are not built in, this means there are models that have more than average sizes. This allows for the solar spot lights to have more stored power which means longer lighting time.
More capacity to generate and store power also allow for multiple LED units to light up. It is ideal that 5 to up to 10 Light emitting diodes should be in solar spot lights in order to provide really powerful and bright illumination. The strong and focused light is the reason why it is called a spot light in the first place. If a light only has one or two LED, then this has less illumination, much like an accent lighting gadget.
Solar spot lights are best utilized to provide bright lighting on most part of your garden during the evening. You can train the light on a particular décor or tree to draw attention to it. Such lights are also ideal for making your garden and walkway visible and safe for your night visitors to walk through.
For more outdoor lighting gadgets such as floating solar lights, as well as sun-powered gizmos, do visit our Solar Lights and Gizmos blog.
About the Author
Writer, Abstractor and Blogger.
Is it only possible to harvest solar power from visible light from the Sun?
Why can't we use other frequencies? They're the same force, after all.
And why can't we use lunar power - moonlight is a reflection of sunlight, right?
The answer to your main question is a hesitant "yes".
From the ground, the higher energy photons do not get to us. They are blocked by the atmosphere. We could use the lower energy photons (infrared or radio) but since they carry a lot less energy, they are far more difficult to "harvest".
Still, using black pipes arranged in a tight circle on your south facing roof, it is possible to heat your pool water: this captures the energy from the visible light AND some energy from the infrared.
Some places use huge mirrors to concentrate sunlight in special ovens: that uses all the available energy in the light (after being filtered by the atmosphere).
However, most panels use photoelectric effect which only works with photons above a certain threshold energy (this was proven by, of all people, Albert Einstein).
If the chemical in the panels only work with blue photons, you could shine a thousand red projectors on the thing (red photons have less energy) and crank up the power until the panel melted from the heat, the red photons would still not trigger the reaction to create electricity.
---
Moon
Moonlight is much weaker than sunlight.
The energy we get from the Sun at ground level is almost 1,000 W per square metre (if the square is held perpendicular to the sun's rays). Most of it in the visible light.
The same square, held perpendicular to the rays of the Full Moon, would intercept almost 0.007 W (= 7 mW).
A lot less at other Moon phases.
Creative and energetic? Yes, we are
An excellent article by Melissa Fyfe on the Greens (''It's high time the Greens became real politicians'', 21/2), though I suggest she mistook many of the Greens' strengths for weaknesses.
Thanks for visiting!
