sun

ScienceCasts: Solar Activity

August 13th, 2011

Visit science.nasa.gov for more! With a burst of solar flares and Northern Lights, the sun is waking up from a three-year slumber.


ScienceCasts: Solar Activity

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What effect does the solar wind have on Earth’s magnetic field?

April 9th, 2011
solar

What effect does the solar wind have on Earth’s magnetic field?
What effect does the solar wind have on Earth’s magnetic field?
A. Compasses on Earth stop working.
B. Earth’s magnetosphere is spread out farther on the side of Earth   … Read more

Energy 101: Solar PV

March 10th, 2011

Solar photovoltaic (PV) systems can generate clean, cost-effective power anywhere the sun shines. This video shows how a PV panel converts the energy of the sun into renewable electricity to power homes and businesses.


Energy 101: Solar PV

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How to Make a Solar Hot Dog Cooker

December 25th, 2010

Harness the awesome to cook up a juicy, delicious hot dog.


How to Make a Solar Hot Dog Cooker

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New solar images

May 21st, 2010

Read more: www.newscientist.com See the Sun like never before.

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Solar Cooking

April 9th, 2010

A stove powered by the sun is making a big difference in impoverished countries.

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What are some cheap ways of capitalizing on solar energy?

December 27th, 2009

I can’t afford ; but I can, for example, afford to open my blinds during the day.

Do you know of any creative ways of harvesting the sun’s energy?

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Does the strength of solar lights decrease with distance? How far lights can be from panel without power loss?

December 14th, 2009

I have three solar spot lights, each connected to ONE approx 4in x 4 in solar cell panel with 20ft. plastic covered wires. Will the current decrease if the lights are attached with 40ft wires? How far can I place   … Read more

Can You Charge Solar Lights With A Black Light When There Is No Sun?

September 26th, 2009

I have two that I use inside my home. We don’t always have sun (cloudy a lot), so can I use a black light to charge the solar ones?

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