Liked on YouTube: Drake Equation Expained Simply!

Drake Equation Expained Simply!
Have you ever found yourself looking at a starry night sky, and asking in your mind “Is there any extra-terrestrial life out there? And if so, how many other civilizations are there in our galaxy, and ultimately, in the whole Universe?” I bet you did! Personally, I did it many times… Ok, the question is very simple, but what about the answer? Well, you may think that nobody knows it, and that is somehow true, but… you may be surprised to hear that scientists actually tried to answer it by using… a mathematical equation! Yes, you’ve heard it right: there is a mathematical formula that attempts to estimate how many other civilizations there are in the Universe! Curious to hear more about it? Stick with me and I’ll tell you more! ------------------------------------------------------------------------------------------- Subscribe for more videos:https://www.youtube.com/c/InsaneCuriosity?sub_confirmation=1? Business Enquiries: lorenzovareseaziendale@gmail.com ------------------------------------------------------------------------------------------- Have you ever found yourself looking at a starry night sky, and asking in your mind “Is there any extra-terrestrial life out there? And if so, how many other civilizations are there in our galaxy, and ultimately, in the whole Universe?” I bet you did! Personally, I did it many times… Ok, the question is very simple, but what about the answer? Well, you may think that nobody knows it, and that is somehow true, but… you may be surprised to hear that scientists actually tried to answer it by using… a mathematical equation! Yes, you’ve heard it right: there is a mathematical formula that attempts to estimate how many other civilizations there are in the Universe! Curious to hear more about it? Stick with me and I’ll tell you more! Since the very first moment scientists started to look at the sky, they also started to wonder whether we are alone in the Universe or not. Astronomers always had different (and sometimes, radically different) opinions on this topic. There are several reasonable arguments used by both sides to support their respective opinion. Those who claim there are other civilizations out there, simply point out to the huge number of stars and galaxies in the Universe, predicting that it’s nearly impossible that there is no other planet with intelligent life except from us. On the other hand, those who claim we are alone in the Universe, point out to the fact that we have never received any message from other hypothetical civilizations, and this seems very unlikely, because a very advanced civilization should have been able to “show” its presence to us, somehow. There are many other arguments in favour of one hypothesis or the other. For instance, experts also claim that the average lifetime of an intelligent form of life is very short: so, an hypothetical civilization could have already existed in the past, but it’s now extinct, and this is why we don’t see them now. All of this is to show you that in order to answer this big question, there are several factors we have to take into account first. But we are lucky: somebody already did it for us! The guy who did the work for us is Frank Donald Drake, one of the most prominent American astronomers, involved in several important projects for the search of extra-terrestrial life: for instance, you may have heard about the SETI project. He is also the co-creator (together with Carl Sagan, another famous American astronomer) of the “Arecibo message”, an interstellar message broadcasted into space using the Arecibo radio telescope, containing information about the Earth, the Solar System, humanity, and much more, in an attempt to communicate with potential civilizations living far away from us. But let’s go back to our main question: how many other extra-terrestrial intelligent civilizations are there in the Universe? As we said previously, there are several factors to take into account when we try to estimate the number of civilizations in the Universe. In 1961, Drake tried to list all these factors, summarizing them into a formula, known as “the Drake equation”. The equation is very simple: the number of civilizations with which we may communicate in our galaxy, indicated with N, is just the product of this bunch of variables: Ok I know, that’s a lot of stuff.. but don’t freak out.. just stick with me and in a few minutes everything will be crystal clear! Let’s start from the left of the formula. The first parameter, , is the average rate of star formation in our galaxy. In simple words, it tells us how many stars form on average in our galaxy. That makes sense: the number of possible civilizations, N, will depend on the number of stars; the more frequently new stars form, the higher , and the higher the chances of other forms of life to appear. I see what you are about to object… #InsaneCuriosity #DrakeEquation #Physics
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