Question by O: How does one use x-ray film to watch a solar eclipse
http://news.yahoo.com/nphotos/Solar-Eclipse/ss/events/sc/080108solareclipse;_ylt=AnXh5PKqZfTlJLOzr5SdfhwHcggF#photoViewer=/080801/ids_photos_wl/r3820341735.jpg
I thought that the film should be exposed, not developed. What is it about the film that protects us? The silver?
Best answer:
Answer by mike1942f It has to be developed - it is a nearly opaque material that blocks most of the sun.
What do you think? Answer below!
A spectacular solar eclipse treated skywatchers around the world to dazzling celestial views Sunday (May 20), as the moon wandered between Earth and the sun,...
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Thursday, March 21, 2013
How does one use x-ray film to watch a solar eclipse
Q&A: If a solar eclipse occurs while small kids are at school will the teachers bring them inside or let them see?
Question by IIIIIII: If a solar eclipse occurs while small kids are at school will the teachers bring them inside or let them see?
A solar eclipse occurred when I was 11 and all the kids were outside after lunch. Teachers passed around a few pairs of glasses through which to view the eclipse, but there weren't many pairs for all the kids.
I was too excited to wait and squinted one eye shut and looked directly at the eclipse with the other eye...the next day I was at the eye doctor with an ultraviolet laser burn in the ...cornea, I believe...in other words, a permanent blind spot, which I still have thirty years later.
But what about the younger kids, like 6 or 10 years old? Will teachers protect them? Kids can be extremely curious and excited about these things...I actually plan to keep my youngest son home inside in the event of a solar eclipse...and NOT let him be in school at that time.
People don't understand that the eclipse can seriously and permanently damage the eyes- and I only looked at it for about 7 seconds...while my eyeball was being painlessly burned away from the center outward and I hadn't a clue till it was too late.
MARK dosen't know how to read. Poor Mark.
Best answer:
Answer by braves dudedepends on the teach
Know better? Leave your own answer in the comments!
About Lunar and Solar Eclipses Come See the Accompanying Article at KidsKnowIt.com: http://www.kidsastronomy.com/our_sun.htm.
What does a total solar eclipse symobolise?
Question by J: What does a total solar eclipse symobolise?
There's one coming up in november, and apparently the earth and solar system will be aligned with the centre of the galaxy for the first time in over 26,000 years. What is the deeper meaning of it all, for us as people on this earth?
Best answer:
Answer by Donut TimA total solar eclipse is not a symbol. It is an actual event.
It is not related to the center of the galaxy, it has no meaning and it occurs on average 1 to 2 times a year.
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What do you think? Answer below!
Astronomy questions regarding the moon phases, superior planets, and hypothetical situations!?
Question by flipit54: Astronomy questions regarding the moon phases, superior planets, and hypothetical situations!?
Any experts on Astronomy? I'm having a really tough time with my homework. My textbook is not helping me at all!
1) What time does the waxing gibbous moon rise? Your choices are noon, 3pm, sunset, 9pm
2) What time does the last quarter moon set? Your choices are sunrise, noon, sunset or midnight.
3) What phases of the superior planets can we see from earth?
4) In an alternate solar system, assume the moon goes around the Earth CLOCKWISE while the earth still goes around the sun counter-clockwise. Is the synodic month shorter than, equal to, or longer than the sidereal month in this setup?
5) Annular eclipses of the Sun occur when the angular size of the moon is smaller than the angular size of the Sun. When will it be easiest, considering the distances between Earth-Moon and Earth-Sun, an annular eclipse rather than a total eclipse to occur?
Any help would be appreciated, I've completed most of my packet but these problems are leaving me up after four hours of work!
Best answer:
Answer by StarryskyFirst quarter rises at noon (six hours or a quarter day after the sun)
Full moon rises when sun sets because it is on opposite side of Earth from sun.
Waxing (growing) gibbous moon is anywhere between first quarter and full phases.
Now you know the answer to #1
Last quarter moon is 6 hours (a quarter day) ahead of the sun, just as first quarter was a quarter day behind the sun. Now you know the answer to #2
When we look at superior planets, those with orbits larger than Earth's orbit, those are Mars and beyond. We can see them when opposite the sun (midnight). Then they are illuminated how much? Superior planets orbit the Sun, part way around then how illuminated? Or farther around? But since they are farther from the Sun than Earth, they can never be between Earth and Sun. They can be on other side of sun and appear in daylight sky (if the air was not so bright or there was a total solar eclipse or you were on the Space Station). Then how would they be illuminated? If you are unsure still, set out a bare light bulb and have another person walk around it. Now you know answer to #3.
I think you know how to set up demonstration for #4 to find the answer. Look up the definitions of the synodic and sidereal months and see how they work with revolution of the moon around the Earth and the revolution of the Earth around the Sun in combination. See how the moon appears against the fixed star background (the wallpaper) as your marble moon goes around the baseball Earth as it goes around the lightbulb Sun.
Number 5 is a bit harder since you must look up the terms annular and total eclipses. Then you can take a piece of