Ke Xue: The Physique Of The Succubus At The Beginning Was Reversed By Xiao Ran

205. Can Do Anything Except Give Birth To Children

Qiu Ben smiled and said, "See you then."

Nonaka was a little unhappy: "Why, even you hang up a girl?"

"I don't have one."

Akimoto and Nonaka walked down the stairs while chatting.

Eda sighed: "Akimoto-senpai is really different, unlike me, I don't even know where the orbit of the artificial satellite is.

Ran Mouri asked: "By the way, what is an artificial satellite?"

Wu Fan explained: ": An unmanned spacecraft orbiting the earth in space orbit. Artificial satellites basically move around the earth according to the laws of celestial mechanics, but due to the non-spherical earth's gravitational field, atmospheric drag, and solar gravity in different orbits , the influence of the moon’s gravity and light pressure, the actual movement situation is very complicated.”

"It is the spacecraft with the largest number of artificial satellite launches, the most extensive uses, and the fastest development. The number of artificial satellite launches accounts for more than 90% of the total number of spacecraft launches.

"Artificial satellites can be divided into three categories: scientific satellites, technical test satellites and application satellites. Scientific satellites are satellites used for scientific exploration and research, mainly including space physics exploration satellites and astronomical satellites, used to study the atmosphere of a certain planet , radiation belts, magnetosphere, cosmic rays, solar radiation, etc., and can observe other stars. Most of the artificial satellites in the world are artificial earth satellites, and there are also artificial Mars satellites."

Ran Mouri looked admiring: "Wow, Wu Fan, you are so awesome, I feel like you know everything.

"Not bad. As a detective, you actually know this." Jiang Tian was a little surprised.

Conan's half-moon eyes said: "Humph, this guy has started again."

Before I knew it, it was 11:50 pm.

Everyone has been looking up at the sky, waiting for the artificial satellite to pass by.

Suzuki Sonoko touched her neck and complained: "Really, why don't you come? My neck is almost sore to death."

Ran Mouri said: "There are no satellites passing by at all.

At this moment, a figure walked over.

Ran Mouri was surprised: "Brother Akimoto, why are you here?"

Akimoto smiled and said: "How is it? Have you seen the artificial satellite?"

Wu Fan complained inwardly: "What about the artificial satellite? Mao didn't even see it."

Mouri Kogoro shook his head and said: "No, I didn't see it.

Jiang Tian was a little surprised: "Why are you here again? Senior Akimoto."

Akimoto explained: "Have you forgotten? My photography time is from 9 pm to 3 am, and I happen to be free now, so I came back."

Conan asked: "Is it really okay to put the camera there?"

"Well, because the way we shoot now is also called fixed photography."

Suzuki Sonoko asked: "What is the fixed photography method? It sounds very powerful."

Wu Fan said: "Fixed photography is a photography method in which the camera is fixed for exposure. So in fact, as long as you attach the camera to a tripod in daily life, you can take pictures.

They are all considered stationary photography, and the exposure time is sometimes as long as one or two hours. "

"The steps are: load the film on the camera → lock the camera on the tripod → compose the view → expose → complete the exposure and make a photographic record."

"It's that simple, but being so simple doesn't guarantee that the photos will be wonderful. First of all, we need to know that the star trajectories in the four directions of east, west, south and north are different. If you shoot to the north, you will get concentric circles with the North Star as the center. Trajectory; the east side is a straight-line trajectory from the lower left to the upper right of the screen; the south side is also a concentric circle, but because the South Pole Star cannot be seen, the trajectory is semicircular; the west side is just the opposite of the east side, from the top left to the right of the screen The straight-line trajectory below. If you know the direction of the star trajectory, you can think about the background starry sky in advance, and then find out the scenery and direction you want, and create a work that you are satisfied with."

"The second thing to know is the relationship between exposure time and aperture on star trails. The earth rotates once every 24 hours, so the longer the exposure time, the more the earth rotates, and the longer the relative star trails are. In addition, the same Exposure times also have different star trail lengths for lenses with different focal lengths: star trails with long focal lengths are longer; star trails with short focal lengths are shorter.”

“The changes that stationary photography can make are far greater than those of other astronomical photography, and the first thing that can be used to change is the moon.

Moonlight is a formidable enemy for astronomical photography, but in fixed photography, moonlight can be used to capture dreamlike starscapes...

This is because the moonlight is very bright. Under a long exposure, the ground scenes will be as bright as during the day, but there will still be star trails in the sky. This is very meaningful. The only thing to be careful of is not to overexpose.

The second thing you can use is the flash. You can use flash to fill in the desired foreground while the sky remains dark, and you can even repeat exposures to include yourself. "

Wu Fan asked with a smile: "Am I right? Mr. Jiangtian."

Jiang Tian was shocked after hearing this: "Are you really a detective, not an astronomy student?"

Wu Fan shook his head and said, "I am a graduate of the computer science department."

Ran Mouri looked admiring: "Wu Fan, you are really amazing. Why do you know so much? Where did you learn it?"

Wu Fan joked: "Of course I learned it in Hawaii."

"Humph, that's unreasonable. You're trying to steal my limelight again. I'm so unwilling." Conan's eyes were half-moon-eyed.

Akimoto said: "Yes, to put it simply, the camera's shutter is set to be fully open for a period of time, so it doesn't matter even if you are not nearby during the photography process."

Conan said: "I know this method. In this way, the stars will become ten lines."

Akimoto was a little surprised: "That's right, little friend Conan, you really know this very well."

Ran Mouri asked: "Then why didn't Brother Nonaka come?"

Akimoto replied: "Nonaka is still staying at the broadcast tower. He plans to shoot from 9pm to 12pm, and from 12pm to 3am. There are two photos to be taken in total, so he must be there at 12pm. It’s time to adjust the camera.”

"It's really hard for astronomy students, taking two photos in six hours," Wu Fan sighed inwardly.

Akimoto suggested: "By the way, can't we use a telescope to take a look at Nonaka? He is very sleepy now. Maybe we can still see him yawning.

Suzuki Sonoko smiled and said: "What a great idea."

The time soon came to 0:15 midnight. .