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Why is negative times negative positive?

While I was philosophizing, I forgot how this could happen XD! So I had to rethink how it works. So multiplication can be thought of as repeated addition. This even true for non-integer real numbers, just that sometimes you are adding it only by a non-integer proportion sometimes. Addition is commutative, so you can explain adding A B times also as adding B A times. With negative numbers, when we take B from A and if B is greater than A, we can say that the result is a negative number with the value of taking A from B, so that the borrowed amount is represented as the difference between the larger and smaller number. Since we have established the origin of negative numbers through subtraction, we can add a positive number to a negative number to bring it closer to the positive realm. Adding a postive number reduces the borrow from the negative number, until it reaches zero, and then the familiar addition of applies. Since we have established subtraction as removal earlier, we can use t
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Thinking about how to understand systems

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Table of Cohesion and Coupling (Source: https://feature-sliced.design/docs/reference/isolation/coupling-cohesion License: Unknown / Probably Copyrighted )   This is a method by which we understand systems in programming. As the image shows, cohesion is how much similar things are grouped together, and coupling is how much different groups are connected to one another. If I'm thinking about nature, there are a plethora of behaviors, but all of them have common fundamental behaviors. It is easy to understand it as how if we consider the known materials of the world, they are all built up from the same types of elements, which we call atoms. Elements of reality, as we could call them. At the same time, the combination of different elements is what makes reality wonderful, as otherwise everything would have been so stagnant or predictable. This is the general principle of art, to bring into attention a new perspective, and that is ingrained with every part of reality. Thinking in that
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Energy Efficiency

#Draft Start by defining Power Density and Energy Density. Energy = VIt = Vq Describe Energy as the area of a rectangle with sides Voltage and Capacity or Charge (q=It) Contained. If this is the energy contained per unit mass of a material, this is it's Energy Density. Now, if we consider the energy utilized per unit time, that is Power Density. From this, you can know that for a given fuel, if its Power Density is Higher, its duration is lower. Now, this is the energy conversion for chemical batteries. We also often see the Power Density of Gasoline and other fuels mentioned, which unsurprisingly have the same units. In case of Gasoline and Wood, we take the Energy Density as the Heat of Combustion per unit mass. But Combustion is yet another chemical reaction, a redox reaction. Except that in this case, we utilize the heat instead of the flow of electrons. What are the other sources of energy? Another one would be the energy from motion (Wind, Water), Geothermal (Heat), Solar (Li
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