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Mullvad's public encrypted DNS Servers run in RAM now (ghacks.net)

submitted 1 year ago by throws_lemy@lemmy.nz to c/technology@lemmy.world

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[–] kautau@lemmy.world 82 points 1 year ago (6 children)

The missile knows where it is at all times. It knows this because it knows where it isn't. By subtracting where it is from where it isn't, or where it isn't from where it is (whichever is greater), it obtains a difference, or deviation. The guidance subsystem uses deviations to generate corrective commands to drive the missile from a position where it is to a position where it isn't, and arriving at a position where it wasn't, it now is. Consequently, the position where it is, is now the position that it wasn't, and it follows that the position that it was, is now the position that it isn't.

In the event that the position that it is in is not the position that it wasn't, the system has acquired a variation, the variation being the difference between where the missile is, and where it wasn't. If variation is considered to be a significant factor, it too may be corrected by the GEA. However, the missile must also know where it was.

The missile guidance computer scenario works as follows. Because a variation has modified some of the information the missile has obtained, it is not sure just where it is. However, it is sure where it isn't, within reason, and it knows where it was. It now subtracts where it should be from where it wasn't, or vice-versa, and by differentiating this from the algebraic sum of where it shouldn't be, and where it was, it is able to obtain the deviation and its variation, which is called error.

[–] bobs_monkey@lemm.ee 19 points 1 year ago (1 children)

I need an adult.

[–] cheese_greater@lemmy.world 1 points 1 year ago

Why won't you join the "Handsome Club" with me, just now?

[–] DrDeadCrash@programming.dev 16 points 1 year ago

Sounds like Douglas Adams

[–] d3Xt3r@lemmy.nz 15 points 1 year ago

The missile maintains constant awareness of its location. This is achieved through its intrinsic understanding of where it is not. By calculating the difference between its current position and where it isn't, either by subtracting its current location from where it isn't or vice versa, the missile computes a deviation. This deviation is then utilized by the guidance subsystem, which is programmed to issue corrective commands. These commands are designed to reposition the missile from its current location to a desired one. As the missile reaches a location where it previously wasn't, it updates its current position. This means that the missile's present location is now where it used to be absent. Consequently, the position that the missile occupied before is now a location where it is not.

In situations where the missile finds itself in a position other than where it intended to be, the system identifies a discrepancy. This discrepancy is quantified as the difference between the missile's current and intended positions. When this variation is significant, it can be adjusted by the Guidance Electronic Assembly (GEA). However, for the GEA to make effective corrections, the missile must have knowledge of its previous position. This historical data assists in accurate recalibration, ensuring the missile's course remains true to its intended trajectory.

The missile guidance computer operates on a complex principle. When a variation alters the information regarding the missile's position, uncertainty arises about its exact location. However, the system is fairly certain about where it is not and remembers where it was. It computes its current position by subtracting where it should be from where it was not, or the other way around. This calculation is refined by contrasting it with a composite of where it should not be and where it was. Through this process, the missile identifies both the deviation from its intended path and the extent of this deviation, known as the error. This error calculation is critical for realigning the missile's trajectory toward its intended target, ensuring high precision in navigation and impact.

[–] haulyard@lemmy.world 7 points 1 year ago (1 children)

What the heck just happened?

[–] supercritical@lemmy.world 6 points 1 year ago

What happened is what is subtracted from was divided by what could have been. If you know the integral of what could have bin then you can obtain the euclidean distance to what is and then you know what happened.

[–] UntouchedWagons@lemmy.ca 4 points 1 year ago

Those certainly are words.

[–] brambledog 1 points 1 year ago (1 children)

Catch-22 or Gravity's Rainbow, if my memory of books I've read once is still accurate.

[–] Apollo@sh.itjust.works 5 points 1 year ago

Neither, its a copypasta born from a usaf pdf. I think it might actually be the og version, vintage af.