YZ Science

The life-span of a human being is an average of a century. That's a pretty long time for us to make the most important decisions of our lives or is it? As long as that may seem, it is apparently irrelevant compared to the universe's course of time. Let's dive in. What is Time?   From when each and every one of us was born to now, we've experienced the passing of time and have been under its influence but why can't we still feel it? It governs everything we do in our daily lives but it is still somewhat invisible to us.  Taking Time as a standalone dimension Let's start from the basics.  We describe a point as having zero dimensions, that is, it possesses no length or breadth.  We move on to a line. A straight line is the shortest distance between two points. It has one dimension as it possesses length. Now we take a piece of paper of a molecule thickness. It has length and breadth. It has two dimensions and therefore is two-dimensional. On

We as humans believe ourselves to be the center of the universe as we are alive and are made of something that is seemingly abundant in the universe, matter. From atoms to Galaxy clusters and nebulae, everything we see is made up of what we call normal matter but there's a somewhat less flashy and darker brother that goes unnoticed. We call it Dark matter .  At a time in history, scientist believed that normal matter is the only type of matter that exists and proliferates our universe. This line of thought continues for decades until calculations were made to estimate the amount of visible matter in our universe. Fortunately, they were shocked by the result they got. From the approximations, the universe consists of <5% of normal matter which is now termed as Baryonic matter ( since baryons are it's basic building blocks).  How? We see matter all around us it should make sense that the universe consists of mainly matter. But on finding that was not the case, it s

It’s night time. We’re all asleep. We enter a trans-dimensional state where we are in a world created by our own minds. We cannot help but watch the events unfold as we seemingly are in no control of what is happening in front of our eyes. It’s almost like we’re in another world. As of now, technological advancement has made this and even more possible to witness with our own physical eyes. It’s truly amazing! 📷: Johann Savalle What is Reality? If I can’t touch you, does that mean you aren’t real? That is not quite true. Reality means much more than just touching or sensing the tangibility of things all around us. When something is real, we communicate with it. This doesn’t mean necessarily touching or talking to it but it could also mean a wide variety of ways we could sense the object. If we could sense an object in any possible way, it is considered real. Hence even if we cannot physically see music or sound, so long as we can sense it through hearing, it is re

When we talk about infinity  ∞ , we talk about the existence or something so large or so tiny, it's impossible to imagine. But ironically, we've done just that. Imagine you take a bag of salt and tried to count how many grains of salt there is in it, you'd say it's impossible because it feels so infinite. Well, that analogy hasn't even begun to scratch the surface of the concept that is infinity.  Infinity is imaginable yet so complex to understand. It took years before mathematicians could first understand what infinity is. It is not a number! It's is more like an abstraction . Some people define it as something that is so large and limitless. But that's not all true. You'll see why later on. We Have Infinities Are you a science enthusiast? If so, you'd have probably heard of a theory of multiple universes that makes up the multiverse. If not, click here . The theory that makes room for the possibility of a multiverse infers we

Temperature, what is it? Is it heat? Or is it Cold? Well, it's both of them. From childhood, we learned that temperature is the degree of hotness or coldness of an object. This definition is still true. Well kind of. For a fact, the temperature isn't just a degree. It is actually the average energy of all the particles in a system and it's also related to the distribution of those energies in the system. You see, a change in temperature is basically a consequence of heat exchange. This results in a rise or fall in a body's hotness or coldness. So what does it mean when the temperature is said to be absolute? Absolute - Maximum If you're thinking it means 0 degrees Kelvin, you are slightly incorrect. That is just a point on the temperature scale. What it actually means is a point where we can go no further. This applies in both directions. So we have what is called Absolute Cold ( better known as absolute zero) and Absolute Hot.  © From LMU and

Imagine a world where you could talk to a robot, chat with it, tell it to do something? Oh wait, we already can but not to a level we truly want. The Definition and Concept Computers have been in existence since 1975 (computers with real power that is). Powerful as they are, they become undone when it comes to real life situation. Let me explain. Digital computers are based on binary states of 0s and 1s (or ON and OFF). It can make powerful computations at mind-blowing speeds but that's about it. It can do only what it is programmed to do and nothing else. It has a very rigid predefined set of instructions that directs it to start and complete a task. This could be somewhat limiting! When it comes to real-life situations, the ball game changes as almost nothing is predictable. It requires the ability to observe and take the appropriate actions accordingly. This is where Artificial intelligence (AI) comes into play. Artificial intelligence is a little difficult to defin