My neighbor bought an infrared telescope, and he said he would know what time I was going out and co

The "infrared telescopes" currently sold on the market are infrared light telescopes, not infrared imagers (telescopes).

Infrared telescopes rely on light (visible and invisible) to image, the characteristic of light is that it travels in a straight line, and it is difficult to penetrate opaque objects.

Infrared telescopes rely on infrared rays to image, infrared rays have a strong ability to penetrate, and walls can penetrate. If you are an infrared telescope, you can see the people inside through the curtains from 10 meters away, but you can only see a very blurry image, similar to a shadow, and you can't see the colors and details. At present, there is a kind of life detector used in disaster relief, which relies on infrared detection.

Your neighbor must be using an infrared telescope (because infrared imagers are more expensive and not personal**), and infrared telescopes can't see you through the curtains.

It looks like your neighbors are quite aware of you, be careful!

Infrared light is only a relatively clear way to see things in very dark places.

So he just keeps an eye on you every day, maybe he says he secretly watches you.

If he can see through your home, unless it's a thermal device.

For example, if you are at home or have your computer turned on, you are heating up.

But these equipment are sky-high prices.

There are no civil, commercially available infrared astronomical telescopes. Because this technology involves military use, foreign countries strictly restrict China. It could be that your neighbor was fooled, or that he deliberately lied to you.

Of course, if you turn on the lights, you don't need any binoculars to know if you're going out or coming back.

Even if there is, infrared light cannot be seen through, and the effect of infrared light through the curtain is similar to that of visible light, and even if it can be seen, it is still a blurry piece.

Not to mention 10 meters, even 100 meters is a piece of cake for astronomical telescopes. Ha ha. I don't know if you can see through this, but you can check out how the infrared astronomical telescope works.

You can buy one and try it, or you can go to his house to try the effect.

It can be said that it is more difficult to use a printer, so it is more powerful, as long as the eyes of the telescope are okay, someone tells you how to see it when adjusting, but the printer needs to be connected to adjust the direction and size of the paper.

Don't do bad things, don't be afraid of ghosts knocking on the door, call the police, buy it yourself to play, and care about what you do, so you care too much, even if he calls the police, the police won't care, but may check on him, are you afraid of being seen or what's wrong? What's in the house, right? People buy it to play, but you are so worried, there must be a ghost, so he called the police and asked him to call the police, don't care too much

Blank Check

Starring: Bran Bonsar.

Synopsis: Blesson (a child) is driving a new car and chasing a friend in the street and accidentally collides with Quickley's car. Quickley had just come out of prison and was about to go to the bank to withdraw his $1 million in private deposits. Now, Quickley meets Blesson's partner who asks him to pay for the damaged car, and he doesn't want to bother him, so he has to write a check for him, just when a police car arrives, and he hurriedly tears the check and gives it to Breston in a hurry.

Upon returning home, Breston unexpectedly discovers that it was a blank invoice. So, Bladstone wrote down the amount of $1 million and withdrew the money from the bank.

I've also been looking for a long time, the 1994 French movie Cache Cash, translated as 40 million mysteries, money bags.

Web Links.

I guess it's out of focus. In the SI of the good focus? In this case, the star is only a point no matter how it is magnified, only Venus, Jupiter, Mars and Saturn can see the circle surface, while Venus generally does not see a perfect circle, usually in the shape of a half-moon, and Saturn has now missed the observation season and cannot be seen, Jupiter can not be seen until the second half of the night and is pale yellow instead of white, Mars is red, so the biggest possibility is a virtual image formed by not being in focus.

The planet, it is estimated to be Venus in vain, you should really see it in the evening, there is light pollution in the city, and it is estimated that it can only be seen by a bright star like Venus.

It should be like this, if you look at the moon, maybe it will be more round and white.

Before answering this question, let's talk about the level gap of astronomical telescopes, telescopes, the larger the aperture, the greater the magnification, the better the effect, the higher the distance, all aperture telescopes see the distance is infinite, the distance to see has nothing to do with the telescope, but it is related to the objective aperture, in the same place, a 10 cm aperture and 50 cm aperture at the same time to see a star 100 light years away, 50 cm aperture can be seen, and 10 cm aperture can not be seen, but after you magnify the star 100 times, You will find that 10 cm aperture can also be seen, 1) 500 yuan budget, buy an astronomical telescope, the aperture will be below 6 cm, 2) the telescope can see infinity, that is, no matter how large the aperture of the telescope, as long as the light can pass through, you can see, 3) As for the effect, look at the surface of the moon, etc., I used the Xingtron 80EQ upgrade, at that time, after the counteroffer** was 800 yuan, 8 cm caliber telescope, looking at the moon can see the crater, Saturn is only the size of a soybean (the ring is counted separately), Jupiter, The size of a soybean, Venus can see the circle missing, so you can imagine the effect of seeing the caliber below 6 cm, 4) If you want to see the shocking effect, you must have a professional astronomical telescope, 5) The small-aperture astronomical telescope on the market, Xingtrang, Tianluo, Boguan is not bad, in addition, remind that many businesses say how many times when promoting, it is recommended not to believe it, calculate it yourself, magnification = objective focal length eyepiece focal length.

There's not much room for personalization options for beginners' telescopes. My personal suggestion is that the landlord is taking out a few hundred more and buying an entry-level artifact 80EQ (brand is not limited); If you strangle the budget within 500, then simply buy a Phoenix 60900 of more than 100. At this price, there is really no need to compare other telescopes with these two.

As for the landlord's requirements, looking at the surface of the moon, the effect will be satisfied. But let's be honest, it's just a matter of looking at the moon to be satisfying. As for the other requirements, it is clear and has a caliber to decide, while the telescope's ** is proportional to the cubic of the aperture.

As for "far", that is a very layman's statement, the parameters of optical instruments will never have a "how far can I see" item (for example, our naked eye, is an optical instrument, who would boast that "my eyes can see xx far").

There are two suggestions for the landlord:

It is strongly not advisable to buy an astronomical telescope before getting to know the main constellations, astronomical observation is highly professional, and its charm is far from the type that pursues heartiness. Just by virtue of a momentary interest, it often becomes an ornament, and this proportion is more than 95%, which should not be underestimated.

If you have to buy a telescope, it's better to buy a pair of binoculars, because there will be some use in life, such as travel or concerts. For novices, in astronomical observations, it is used to familiarize yourself with the starry sky and find deep space, which is more advantageous than astronomical telescopes. I use Boguan Hunter 7*50, the budget is about 400, and the effect will be satisfactory.

500 It is recommended to buy a double-barrel 7x50 first, and then buy astronomy when you have money.

Beijing Galaxy Telescope Answer: Astronomical telescopes are divided into three types based on different imaging principles: refraction, reflection, and catadioptric.

For beginners, it is best to choose the refractive type, it is very convenient to operate and maintain, simple, and relatively cheap, and the lowest can be bought for about 500 yuan. The reflection type is relatively short, the imaging effect is good, and there is no chromatic aberration, the aperture can be very large, and the observation field of view is also very large, that is, it is higher. For entry-level astronomical telescopes, Xingtran 80EQ and 130EQ are better choices, 80EQ can see the crater on the surface of the moon, can see Saturn, Jupiter, Jupiter moons, etc., can also view the scenery, can see one or two kilometers of air conditioning trademark.

**Around $850. 130EQ can see the craters on the surface of the moon, Saturn's rings, Jupiter, Jupiter's cloud belts, Jupiter's moons, etc., and 130EQ is basically a civilian astronomical telescope that can shoot nebulae with the lowest aperture requirements after being connected to the camera. **Around 1500 RMB.

The relative aperture of 130EQ is large, and the observation field is large. You can go to the Galaxy Telescope Knowledge Zone to have a look, and you can directly search for "Galaxy Telescope", where there is a lot of relevant knowledge about the purchase, maintenance and use of telescopes.

According to the requirements provided by the landlord, I can give a brand-name telescope - 90EQ of Xingtron Astromaster, ** not expensive, online shopping should be about 1000 yuan, I have one, you can clearly see the crater on the surface of the moon, it should be more suitable for amateur astronomy enthusiasts, the landlord can refer to.