Recent comments in /f/explainlikeimfive

Scoobywagon t1_j9u09bc wrote

Simple. They've never seen it done and are unable to do it themselves. It may be a little short-sighted, sure. But not entirely unreasonable for someone who doesn't know how this stuff works.

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Waltair_Boy t1_j9u04h4 wrote

Well you also have 'cracked versions' of these apps! For instance, in Android you can download an APK file, the equivalent of Windows EXE and install the app's full version. If this is an app which doesn't require subscription etc, you are all good to go!

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Milk_A_Pikachu t1_j9tzi2e wrote

It is twofold

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Part of it is that EVERYONE wants Windows. So obviously piracy groups are going to crack it

Whereas comparatively few people want a specific CAD tool. So piracy groups aren't incentivized to crack it.

Because if you actually read a .nfo file (that you obviously found in church on a sunday while minding your own business), most warez groups are obnoxious little shits who only care about the clout.

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The other aspect is that, for stuff like Windows, Microsoft doesn't actually care about piracy. They basically throw licenses at consumers for free (hell, I am still cycling through like four different keys I got during college). Because there is so little profit in what OS Grandma buys that it doesn't matter.

Instead, they profit off keys sold to the people who sell pre-built computers (so laptops and prebuilt desktops) who just treat that as an operating cost. And, more importantly, they sell bulk licenses to actual companies. And THAT is a lot of money

And you know what encourages Reynholm Industries to buy hundreds of Windows and Office and so forth licenses? The fact that their employees are comfortable with that OS and ecosystem... possibly because they grew up with an unactivated bootleg copy.

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nim_opet t1_j9tzh5p wrote

The same way that t would be harnessed with any thermal generator - you heat a medium (water etc) turn into steam and turn a generator. “Cold” in “cold fusion” means “not millions of degrees currently needed”, not “room temperature”.

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CreativeGPX t1_j9txtg6 wrote

> how does light get reflected?

Photons ("packets of light") bounce off of particles (atoms, molecules).

> does it get reflected in all directions or in the direction where it came?

Keep in mind, if it only reflected back in the same direction, you'd never see anything that is opaque because all of the light emitted from a source (lamp, sun) would bounce right back to that source rather than your eyes. The fact that you can see your wall when you turn a lamp on tells you that light doesn't just bounce right back at the lamp.

It gets reflected the same as anything. Just like when you hit a pool ball. You have to remember that "light" is not a single photon (or beam) following one path though. Even a laser... you can see the dot is a couple of millimeters wide. Many atoms can fit in a couple of millimeters which means when you shine the laser at a material, some of the photons will hit spots where there is an atom, but others won't. In this way, even if they all follow the same rules about bouncing, some will bounce and others won't.

Think of it like dropping 10 balls side-by-side into the top of a Pinball machine. We cannot generally say "all balls will do X" since they're all in different positions and may hit different obstacles in the pinball machine. But we can say that in one pinball machine all the balls pass right through because there is no barrier, in another they jumble up a lot because there are many barriers and in yet another they just get stuck because there are too many barriers.

In the same sense, different materials (mirrors, glass, bricks, air) will tend to bounce stuff in certain ways based on the way their atoms are positioned. If the bouncing tends to happen in a way where two photons that are close to each other on the way in are also next to each other on the way out, you'll get something that looks like a mirror, but if the structure leads to bouncing where photons that started near each other will exit in different directions then it might look more like a brick. Photons also come in different "sizes" based on their color. So, if you shine a white light (white is made up of all the colors) some photons might bounce back at you but others might not. For example, with a brick, the red photons will bounce back at you, but the blue will mostly not. So, it looks reddish.

So, while the rules of light bouncing are pretty simple and similar to how you see anything bounce, the fact that "light" is usually many beams of photons and the objects you're shining them are are piles of atoms with huge gaps in between means that really complex effects can happen where millions of different bounces are occurring for different parts of the beam or even different colors of light and that creates all these different effects we see.

> does light gets weaker everytime it gets reflected i mean does the reflection gets weaker even time it also reflects?

It tends to, but it doesn't have to. What a "weaker" reflection means is that less photons hit your eyes. Given that each time a beam of light reflects again, there is some chance it will scatter a bit, that tends to mean that as it reflects more and more, there will be less photons hitting your eye.

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spidereater t1_j9tvzfk wrote

Probably part of it is that the small company can make it have onerous security that is harder to hack. For windows to have onerous security will mean lots of computer downtime as people try to figure it out. That is more costly for Microsoft than the lost revenue of a few hacked systems. They are more interested in ensuring corporate clients are paying for windows.

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spidereater t1_j9tvi5x wrote

Yes. In fact, they specifically want windows to be a easiest thing to install at home. If lots of people start using Linux or some other OS at home, a whole ecosystem of software for Linux will develop and more people/businesses will refuse to pay for windows. Not only do they not care if Johnny gamer uses windows for free, they really don’t want him switching to Linux.

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julie78787 t1_j9tpvzo wrote

I wear a bicycle helmet because I'm convinced by what I've read that they reduce brain injuries. I could handle major issues with limbs. I couldn't handle a TBI that screwed up my ability to think or reason or function.

I don't think they make me invincible, which I suspect is a confounding factor for overall injuries. 35 years ago I decided to keep my speed down because descending at 55mph was scary as could be. I've not been much over 35mph in the last 5 years and even 30mph is starting to be scary as I get older.

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Sunhating101hateit t1_j9too3d wrote

You can see everything around you because it reflects light. So unless you “emit” light, reason has it that light is reflected in every direction.

About the second: every time light gets reflected, some is swallowed up by the surface as heat. So yes, you could say the light gets weaker the more often it gets reflected.

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