Wednesday, March 6, 2013

do solar pool covers really work?


Question by Trophywife22: do solar pool covers really work?
i just purchased a above ground pool. no one likes to go in a freezing cold pool so i am wondering if i should purchase solar rings or a solar cover. do they actually make the water warmer?


Best answer:
Answer by E-vangelistYes, it does. It creates a layer of warm water near the top which you can mix as you swim or run the filter to mix it.

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Total Solar Eclipse | Solar Eclipse Information

How many eclipse have occured and will occuer in the united states?


Question by jackeline mendez: How many eclipse have occured and will occuer in the united states?
I want to know more about eclipses.A sun eclipse or moon as i've heard. and is it true that you can't look one straight in the eye?


Best answer:
Answer by BullseyeHere is a list of the last and NEXT total solar eclipses for many US cities. Read down this web page:

http://www.space.com/spacewatch/050408_solar_eclipse.html

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Total Solar Eclipse | Solar Eclipse Information

How are small images of the sun in partial eclipse,seen under the shades of tree during solar eclipse?


Question by Mahesh: How are small images of the sun in partial eclipse,seen under the shades of tree during solar eclipse?
Prior to the total solar eclipse, you may be able to look at the shadow thrown by a tree onto the ground. Often thousands of small images of the sun in partial eclipse will be visible. How does this happen? Does this phenomena have any thing to do with the term,'Fraunhoffer Diffraction?


Best answer:
Answer by Roger KDon't know if it is related to Fraunhoffer Diffraction, but each opening between the leaves through which the sun shines acts like a pinhole camera to project the image of the eclipsed sun on the ground.

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Total Solar Eclipse | Solar Eclipse Information

What effect or effects would be most significant if the Moon's orbital plane were exactly the same as the?


Question by s0phi3: What effect or effects would be most significant if the Moon's orbital plane were exactly the same as the?
ecliptic plane?
A) Solar eclipses would be much rarer.
B) Solar eclipses would be much more frequent.
C) Total solar eclipses would last much longer.
D) Solar eclipses would be much rarer. Total solar eclipses would last much longer.
E) Solar eclipses would be much more frequent. Total solar eclipses would last much longer.


Best answer:
Answer by ÎșarlaB

Maybe E, but I think only B

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Total Solar Eclipse Australia 2012 UFO sighting? the planet Nibiru? A strange phenomenon? During the last total solar eclipse in 2012 a massive object appears between the moon and the sun the object is four times the size of Earth. As seen from the Earth, a solar eclipse occurs when the Moon passes between the Sun and Earth, and the Moon fully or partially blocks the Sun. This can happen only atnew moon, when the Sun and the Moon are in conjunction as seen from Earth. On 2012 November 13/14, a total eclipse of the Sun is visible from within a narrow corridor that traverses Earth's southern Hemisphere. Over the course of 3.1 hours, the Moon's umbra travels along a path approximately 14500 kilometres long covering 0.46% of Earth's surface area. Please comment on this video, we will find out the truth among all the truth is out there subscribe to our channel
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Total Solar Eclipse | Solar Eclipse Information