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Tag Archives: UV

LED Vs. CF Light Bulbs

LED Vs. CF Light Bulbs by Emily Jacobson, Demand Media Compact fluorescent lamps (CFLs) and light-emitting diode (LED) bulbs offer significant energy savings, so the choice between them is a matter of initial cost, intended use and personal preference. How ...

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Square Hole In Sun Spotted by Astronomers

Photo credit: NASA/Solar Dynamics Observatory Square Hole In Sun  Spotted by Astronomers by Lisa Winter NASA’s Solar Dynamics Observatory recently spotted something peculiar on the Sun: a square hole. There are high-speed solar winds shooting out of this area, and ...

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Skin cancer – non-melanoma

Skin cancer is one of the most common cancers in the world. Non-melanoma skin cancer refers to a group of cancers that slowly develop in the upper layers of the skin. The term ‘non-melanoma’ distinguishes these more common kinds of ...

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