《Goddess of Computation》 chapter16.h

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As the morning sun slowly filtered over the translucent parts of the divine cloud and slowly peeked over Ada's cloud palace, Ada felt a stirring in her heart at the beauty of the scene. There was a strangeness to the light, as if a tinted lens had been added to the sky. No doubt this was due to her clouds which acted like a series of giant translucent lenses. She recalled only one instance where she had seen the sunrise above the clouds which was that one trip to Europe where she saw the sunrise halfway across the Atlantic Ocean. She was half-asleep at the time and the scene from the Boeing 747 was not nearly as glorious as the scene she saw now. There were obviously no divine clouds for the light to diffuse and scatter through.

If she was a poet or artist, she would have written a poem or painted the scene. She was neither and instead thought of how the sunlight was always more red at sunrise and sunset. This is because red light has a longer wavelength and hence would not be scattered away like the shorter wavelengths. If the atmospheric composition was different though with lighter elements, perhaps the Rayleigh scattering of the sunlight would produce a different shade of red.

Ada shifted her line of thought and wondered what the atmospheric composition of this atmosphere was and whether it was similar to Earth's. She has seen green trees and that led her to conclude plants here used photosynthesis which required a level of carbon dioxide in the atmosphere. If this followed the same logic as that of Earth, humans and other animals here must also use oxygen to breathe. However, was the composition of oxygen and carbon dioxide the same ratio as it was on Earth? What about nitrogen?

She suddenly had another idea -- if she replaced a portion of the atmosphere with a gas of lower density, then due to the pressure differential, there would be a compression. Ada then realized that she could not manipulate the atmosphere directly since she didn't own any objects on Urth except what was on her cloud palace from what she has observed so far. However, since she could displace existing air with her objects, she could still do this by replacing a portion of the air with a gas she would have created. If she made the gas density to be very low, it would be nearly a vacuum. With this logic, she could crush nearly everything.

Similarly, if she created a pressure differential where the outer pressure was less than an interior container, she could cause whatever it was to explode. This was why in space with our body naturally producing a pressure to counteract the 1 atmosphere that human bodies were used to, our blood would boil as the pressure was much greater within the body than outside. The similar effect though in the opposite was what occurred in diving when blood pressure was not regulated diving into deeper depths.

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Usually, morning thoughts on physics and chemistry would incur a hunger for food in Ada. As a goddess though, she was actually a little disappointed that she did not feel hungry at all. It was convenient not to have to eat, use the bathroom or for that matter sleep but at the same time, not doing these daily activities felt unnatural -- she felt like a robot instead of a human being. Sleeping was out of the question since she never felt tired and she was glad she could skip any bathroom routine but Ada wondered if the other gods ever chose to eat for the pure enjoyment of food. She knew her senses were still active; she could hear the whistling of the wind as it passed by her ears and the warmth of the sunlight on her skin. Taste buds were probably fine as well though with deity levels of tolerance, Ada wondered if she could finally actually enjoy spicy food. The one time she went to an Indian restaurant with a friend had revealed to her quite clearly that the average American with limited culinary experience such as her palate could not.

She thought about a completely mundane dream that she had the night after the spicy food eating episode where she went to the same restaurant and ate the same food with great relish. That was not the most memorable dream but perhaps it was indicative of Ada's distaste for things she could not do. Ah, that was another loss, she thought. She could no longer dream if she could not sleep. Most of the time Ada liked her dreams since they were often quite imaginative and provided insight into her subconscious. She felt that this was another downside with her change to a deity.

"I used to hate mornings and would sleep through it if possible. I'm not sure how many sunrises I saw in my lifetime even from the ground," Ada thought aloud. "And sunsets as well. Hmm, being put here might lead me to enjoying nature more."

She half-expected Leanne to remark on that but there was only silence except for the wind blowing by. Ada couldn't hear Leanne's snoring from here but she hypothesized that Leanne was still sleeping. She checked her watch and noted that the mortal girl had been sleeping for over ten and a half hours. She wondered if humans slept more here or whether Leanne was just really tired.

"A fresh morning a fresh start. I don't have enough information on where to go until Leanne wakes up. I might as well take a walk around and enjoy the scenery some more. I'll make sure I don't fall off the cloud since I'm still not sure whether I can fly," Ada mused some more.

The walk took her about an hour as she circumnavigated her floating cloud palace. While walking, she multitasked and decided to call up systemhelper again to create the scripts that she had in mind earlier on the implosion and explosion.

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She said aloud, "Unpause systemhelper."

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From earlier experimentation, she has learned that the positional parameters were always relative to wherever she focused with her eyes. What she focused her eyes on was always considered (0,0,0) by default. Ada wanted this script's effect to be focused and hence she did not bother putting in the option to put in other positions. This was a tradeoff between the flexibility of a script with more input parameters versus a simple script with little to none in the time it would take her to say aloud the entire script with the required arguments.

She did need to have an argument to indicate the volume of the gas though. The default was two meters high and one-meter-wide which she figured would be enough for the gas to surround the object or God forbid, a human body. After tweaking the volume some more since Ada did not want it to be a perfect sphere though that was the easiest shape to make.

The main area of experimentation was to identify what the density should be for the gas. From what Ada remembered in chemistry, at low density, all ordinary gases behave in nearly the same way following the ideal gas law. Also based on Dalton's law, multiple samples of gas mixed together would have the total pressure as just the sum of the partial pressures of the different gases. To not disturb the atmosphere, she could just create air but this air would be of very low density. She needed to experiment with how to do this.

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Let me use my script to create a steel box to test this on, Ada decided and then thought:

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A box of 1 meter by 1 meter by 1 meter materialized in front of her.

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From the ideal gas law with PV = nRT, a near-vacuum would have high volume (V), low temperature (T), low pressure (P) and low number of molecules (n). The volume was known based on the physical geometry but there wasn't any way to change it. She assumed that this meant it would be a sphere. However, by making several of these objects in the same script which overlapped one another, she could create a virtual box of vacuum around the intended object. She would need to change the position of where the center of the volume. Ada decided:

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She thought that the box would either explode or shoot straight up in the air. However, it did absolutely nothing.

"Duh! I am so dumb! There's air around it as well and the low pressure air just normalized itself with the outside air instead of doing applying any pressure against a box. Also, why should I create it outside of the object? An explosion should come from the inside out. Think of a bomb. A chemical reaction creates high temperature and pressure inside fast enough that it destroys its container instantly. What I should do is to simply increase the temperature inside the box! Gay-Lussac's law applies here. P/T = k where pressure rises with temperature if the volume stays constant."

She pulled up writecode again.

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Ada edited the script to just take in two parameters - one for radius and the other for temperature.

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After the box was created, without another pause, Ada thought:

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"Boom!" steel pieces of the box flew everywhere. It was completely decimated in less than a second. Ada exclaimed a huge "whoa!" and thought that this was almost as good as the acid test on the box. With this proven to work, she quickly looked into writing the script for implosion.

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This was a little more challenging since imploding an object would require a high density gas on the outside. From what she learned earlier though, that won't work because the high density air would just explode outwards. The alternative was to create a near vacuum inside the target which would allow external air pressure to crush the interior. With this method, as long as the object was not a complete solid, it would create an implosion. The input parameters were just two. One was the radius for the sphere that defined the volume and the other was the number of molecules. After some experimentation, she found a default set of values which appeared to work.

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In an instant, the steel box crumpled in itself as if a giant hand crushed it. Ada was disappointed that it didn't turn into a perfectly spherical ball but that wasn't to be expected any way since the tiniest hole in the box would equalize the pressure. Satisfied with the results, she said, "pause systemhelper".

She also decided to change the name of most of the scripts since otherwise there might be an accidental usage of the script in daily conversation which would be highly embarrassing and in some cases, possibly lethal. For simplicity's sake, she changed the names of the scripts by adding an "ada" or "ad" in front of the name of every script that was a common word. In other words, acid now became adacid.

"Time to wake up Leanne," Ada thought aloud after she was fully satisfied. "Maybe I'll demonstrate some of these in front of her and get some further insight on improvements or modifications. Two smart heads are better than one. But first, I really want her to answer those questions about this world."

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