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Anonymous users2024-02-05Generally 5 yuan, don't use some incorrect methods, so it hurts the eyes, I found two methods elsewhere, I should be able to buy a total solar eclipse to observe the eyes, I hope it will help you.
1.Bank of China Shanghai Branch distributed total solar eclipse safety observation films and total solar eclipse safety observation glasses to the public. Starting from July 13, citizens who go to the bank's designated outlets to handle any business can receive a "total solar eclipse" observation film or a pair of total solar eclipse observation glasses for free.
For specific distribution network information and details, please call 95566 for consultation.
2.Astronomy Enthusiast Magazine mail order.
Number: W10
Item Name: Sunview Glasses.
**Postage price: 20 yuan.
A pair of five yuan, four pieces from post.
The Bailey bead comes out just before the moon is about to completely cover the sun, so take off your glasses 10 seconds before the moon is about to completely cover the sun, and you won't miss the Bailey bead.
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Anonymous users2024-02-04This week of the week. 6. On Sundays, it is sold on the B1 floor of the Children's Palace of the Municipal Welfare Association (address: No. 64 Yan'an West Road, or there is also a door to enter on Nanjing Road, Urumqi Road), and the products include a complete set of "Solar Eclipse Observation Guide", eclipse observation glasses and record cards, with a retail price of 12 yuan.
The glasses have been tested and qualified by the Shanghai Institute of Optics and Machinery, and the quality is absolutely guaranteed, and the number is not much.
Many people have reported that this "Solar Eclipse Observation Guide" has a lot of knowledge points, so that you can understand the whole process of a total solar eclipse.
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Anonymous users2024-02-03There was only one piece of cardboard and plastic!! When to make cheap!!
It can be bought in the general big supermarkets (Tesco, Carrefour, Wal-Mart, etc.!!
I used that to see the sun for a while!! Pretty good!!
When can I see it with the naked eye?
The whole process of a total solar eclipse is divided into 5 stages, the initial loss, the eclipse, the eclipse, the light, and the round, among them, only in the total eclipse stage, that is, the 4 5 minutes of the eclipse, the eclipse, the eclipse, and the light stage, that is, after it gets dark, you can use the naked eye directly.
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Anonymous users2024-02-02Bank of China can pick it up for free.
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Anonymous users2024-02-01Boguanwang Optical Store, Yishan Road Line 4 Good Exit.
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Anonymous users2024-01-31Because it is very low-tech and has a very low cost.
Addendum: Yes.
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Anonymous users2024-01-30Stack it back and forth with a colored plastic bag.
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Anonymous users2024-01-29Goggles are easy to make, low cost, and convenient to produce, so the price is cheap, and there is no harm to the eyes, Bailey beads can be seen with eyes, and the time is very short, just 2 seconds, to cherish it.
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Anonymous users2024-01-28You don't need to buy it, you can just make it yourself.
Negatives used up with photography. After washing the negative, you can use it to shade the sun, and add or subtract the negative according to your own situation.
It works great!
You can also bring a basin of water, pour ink into the water, and point the water to the sun, and observe the water directly without hurting your eyes.
Bailey beads can be observed with the naked eye for only a second or two.
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Anonymous users2024-01-27The most common goggles are welder's goggles with a shading number of 14, which can be bought in the welding equipment market. Most of the main goggles are 5 yuan, 10 yuan, and 15 yuan, and an ordinary color goggle is generally about 5 yuan. The German Bard film silver lens goggles are 10 yuan, and the black lenses are 15 yuan.
Most of these goggle shopkeepers are "halfway home" and make a fortune while the time is right.
According to experts, to observe the sun with an astronomical telescope or with the naked eye, it is necessary to add Bard membrane or other filtering devices in advance, otherwise it will burn the fundus and instruments. Among them, Bard film not only has stronger contrast, but also makes the sun show real colors. The reporter searched on the ** network and found that in most of the sales of paper eclipse observation glasses, they were marked with the banner of "Bard film", but most of them did not indicate whether they had been tested by professional departments.
In this regard, relevant experts reminded that according to international standards, the observation mirror using the density value Bard membrane can be used for the observation of total solar eclipses, and such a solar eclipse observation mirror is reasonably about 5 yuan. When a qualified protective goggle looks at the sun, the sun will appear grayish-white, and the ground you see is black, and you can't see anything else.
A total solar eclipse is when the moon circles the earth and turns between the sun and the earth, if the sun, the moon, and the earth are exactly aligned or close to a straight line, the moon blocks the sunlight that shoots to the earth, and the black shadow behind the moon falls exactly on the earth, and the solar eclipse phenomenon occurs. People in the shadow of the moon on the earth began to see the sun gradually weakening, the sun surface was obscured by a round black shadow, when the sky turned dark, all the brightest stars and planets could be seen in the sky, and after a few minutes, the sun gradually appeared from the edge of the moon's black shadow, and began to produce light and recircle. Since the Moon is smaller than the Earth, only people in the shadow of the Moon can see the eclipse. >>>More
1. Causes of total solar eclipses.
A total solar eclipse occurs because the Sun is close to a point where the Moon's orbit meets that of the Earth, while the Moon is at the closest point to this point. An annular solar eclipse occurs because the Sun is close to an intersection of the Moon's orbit and the Earth's orbit, and at the same time the Moon is at the farthest point from that point. Since the beginning of the food loss, it is the partial food stage. >>>More
Partial solar eclipses: Chinese history books say that "solar eclipses are not as good as hooks", and the reason for partial solar eclipses is that the observer falls in the penumbra of the moon, and the observer will see that part of the sun is obscured by the moon's shadow, but the other part continues to glow. The Sun and Moon only partially coincide, and the size of the eclipse is measured by the apparent distance between their centers (the maximum diameter of the Sun covered by the Moon). >>>More