In the nineties many people had a cactus next to their computer. It wasn’t for decoration, it was to protect yourself from radiation

A few days ago we were talking about a myth circulating that says that if you put a coin on top of the router improves WiFi. It’s as stupid as a temple, but it’s the typical easy-to-do trick that ends up going viral. In the nineties we did not have social networks and the word viral had a completely different meaning, but myths of dubious credibility were also spread, such as the one that said you had to have a cactus next to your computer to absorb its radiation. The origin of the myth. It is believed to come from from an observation made at the geobiology institute in Chardonne, Switzerland, in 1987. It was not a formal experiment, but rather the perception of the institute’s employees who claimed that placing a cactus next to the monitor reduced their symptoms of fatigue and headache after spending many hours working. To that anecdote was added, without links or details, the reference to “a NASA study.” There is no evidence to support any of this, but the use of institutional names was enough for the myth to spread with a semblance of scientific rigor that it never had. Fear of radiation. The word radiation acquired a very negative tone especially after the Chernobyl nuclear disaster. However, not all types of radiation are harmful. “Bad” radiation is ionizing radiation, such as x-rays or gamma rays, but in the case of a computer, it is low-frequency electromagnetic radiation, non-ionizing and incapable of altering our cells. This and other myths (such as related to 5G) arise from the false belief of associating any type of radiation with something dangerous and harmful. Why a cactus. The fact that a cactus is recommended and not any other plant has to do with the fact that they have a high water content and of course, like water absorbs radiation since it is assumed that the cactus will also do it. It can absorb radiation, yes, but no more than any object: by that rule of three, a watermelon or a jug of water next to the computer would achieve an even greater effect. In addition to the fact that the electromagnetic field that a computer can emit is not harmful, it goes out in all directions, so to protect us from it, we would have to surround the entire machine with cacti, not place one next to it and that’s it. Efficacy not found. In 2018, a group of Turkish scientists set out to check if changes occurred in the electromagnetic field by placing a cactus nearby of the screen. They were made with LCD monitors and old tube monitors, as well as different varieties of cacti, including some large ones. They measured the electromagnetic field by placing the cactus in various positions and came to a clear conclusion: the effect was null. Although this trick has been refuted, the popular belief has remained and there are those who have taken advantage of it. Who is it? The cactus sellers. Image | Magnificent In Xataka | We could assume that the plant world was one of the last AI-free corners. we would be wrong

The color of your Ethernet cable is not for decoration: it is a key visual language

We all have Ethernet cables at home and they are probably different colors. In my case, I have several yellows, but there are also red, blue, green… What many people do not know (myself included) is that colors are not a whim of the manufacturers, but rather They answer a practical question. A question of organization Contrary to what we might expect, the exterior color of an Ethernet cable will not tell us anything about its performance. If what you want is know the category of the cable (that is, the speed it supports), they all come with this detail printed on the cable itself. The color does not tell us if the cable is more or less fast, it is for something totally different: being able to distinguish and organize them better. In Xataka How to convert the antenna sockets in your house into an Ethernet network to bring Internet from one room to another. In a home it doesn’t make as much sense, but imagine a server or data center where Ethernet cables number in the hundreds or even thousands; If all the cables were the same color it would be crazy to identify them. Colors help manage large networks. Ethernet cable colors Although there are some guidelines on cable colors from organizations such as the IEEEand ANSIthere really is no universal color code for Ethernet cables. The meaning of each color can vary depending on the country, the sector and even the company. However, there are many similarities and widely used color patterns. These are the most common uses: Grey/white/black: These are the colors that we usually find for general home and office use. We see them in most routers. Blue: They are the most used cable for general network connections, servers or workstations. Yellow: They are usually PoE (Power over Ethernet) cables, that is, they provide power as well as connectivity. They can be used in IP cameras and VoIP phones. Green: to directly connect two devices such as computers, without an intermediate device. Red: They are usually reserved for critical connections such as security or emergency systems. orange and purple: They are less common colors. According to Cables and Kitsare used to connect systems that require a specific connection not compatible with the usual standards, for example to connect older systems that do not use Ethernet with newer ones that do. {“videoId”:”x8coltz”,”autoplay”:false,”title”:”ALL ABOUT ETHERNET CABLES_ TYPES, CHARACTERISTICS AND WHICH TO CHOOSE”, “tag”:”webedia-prod”, “duration”:”211″} As we said, the color of the cable does not determine its performance, but rather has a practical purpose for those who manage very large networks. With colors, maintenance time is shortened and serious failures such as the disconnection of critical systems are avoided. At home it can also be useful if you have several devices connected to your router and you want to clearly see which is which. Image |PxHere In Xataka | The submarine cables belonged to the teleoperators, and now the big technology companies are controlling them (function() { window._JS_MODULES = window._JS_MODULES || {}; var headElement = document.getElementsByTagName(‘head’)(0); if (_JS_MODULES.instagram) { var instagramScript = document.createElement(‘script’); instagramScript.src=”https://platform.instagram.com/en_US/embeds.js”; instagramScript.async = true; instagramScript.defer = true; headElement.appendChild(instagramScript); – The news The color of your Ethernet cable is not for decoration: it is a key visual language was originally published in Xataka by Amparo Babiloni .

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