Hey guys, me again, you know, the cringey (that’s not an actual word by the way) opener guy. Anyway a nice and simple post today, or what’s left of today. So I will be discussing how glasses work. Glasses’ primary function are to help you see, now I say that, but it’s actually their only function. But how do they do it, how do they help you to see?
So first of all, to know how glasses help you to see, we first need to know why people struggle to see. In the back of your eye ball you have something known as a retina and this contains cells called cones and rods, cones sense colour and rods sense how dim something is. Now the reason people struggle to see and view things as being blurred is because the light is not focusing on the retina properly. This can happen for many different reasons as the eye is shaped very specifically and any change can cause you to have blurred sight.
So the simple answer is that glasses bend the light back onto the retina and this restores your vision. Now I can’t actually get into much detail about how this process works because it involves specific measurements and a lot of maths, but the basic premise is that the light is bent and focused back on your retina.
Thanks for reading guys, sorry the post is a bit short compared to the but I can’t actually go into much detail with this question. Anyway as per usual if you liked this post hit that like button and follow for more content. If you would like me to go into more detail message me or comment on this post.
Hey guys it’s me again, and I couldn’t come up with anything to put in this intro so i’ll just leave it like this. Anyway today’s question, well one of them, was inspired by a user known as Elusus, I received this message today via the contact page “Can you write a post on the life time of a star and how the ending of stars would effect the earth, thanks”.
So this got me thinking and as you can see the title of this post is not the same as the question Elusus asked, the reason I have changed it slightly is because I thought that the ending of all stars would be the at the end of the universe. So we’ll first look at the life cycle of a sun, let’s take our sun for an example, our sun is a medium sized star and it ‘works’ by compressing hydrogen into helium in a fusion reaction. Now the sun is very large and has a massive mass, meaning it has a lot of gravity, but the sun does a large balancing act. As the fusion takes place, a lot of energy is expelled and is sent outwards so this, in turn, counter acts the force of gravity making the the sun stable.
However the sun will eventually burn out all of it’s hydrogen, this will be in a few billion years, however it will happen and when it does the sun will start to burn it’s outer layer. It will then do this until it eventually becomes about the size of Earth (much smaller than it’s original size), although it will only be half of it’s original mass, meaning it will be extremely dense. Anyway by this time the Earth will be long gone and so will any chance of life on it, but what about the universe, what will be the last things left?
Very large suns die quickly and explode in violent super nova’s or turn into black holes, I’ve just explained what a medium sized star will do, so what will a smaller star do. It will basically do the exact same as a medium sized star but calmer and slower, these red dwarfs slowly burn out over trillions of years and form white dwarfs. These white dwarfs are the things that will last the longest along with black holes. Then eventually these white dwarfs will turn into black dwarfs and the universe will be a cold, dark, lifeless place, where nothing new will ever happen and never could happen. Although these events are so many billion years away that in our lifetime it really does not matter and it is nothing to worry about.
Thank for reading guys and thanks to Elusus for sending in this request, I hope you all enjoyed this post and if you did be sure to leave a like and follow for more.
Ever wondered how the classic movie poison worked? Well now you can find out below.
Hello people, it’s me again, back to give you another migraine trying to understand our world. Anyway today’s topic is one that I thought of while watching doctor who.
So, I’m sure that you have all heard of cyanide, it is a very fast acting posion that is commonly used in films and TV series. I’m going to explain how it works, the first thing that you have to know is that you come into contact with cyanide everyday in many things. The fact is they are not all deadly.
Cyanide at it’s base is just carbon and nitrogen chemically bonded. The deadly variations of cyandide are; potassium cyanide (KCN), sodium cyanide (NaCN), hydrogen cyanide (HCN) and cyanogen chloride (CNCl).
So how does cyanide work? Well, in a nut shell cyandide stops your mitochondria being able to use oxygen to create energy and this kills you. The cyanide ion, CN-, binds to the iron atom in cytochrome oxidase in the mitochondria of cells. It acts as an irreversible enzyme inhibitor, preventing cytochrome oxidase from doing its job, which is to take the electrons to oxygen in the electron transport chain of aerobic cellular respiration.
This then prevents the mitochondria from being able to use the oxygen and this then stops them from being able to create carrier adenosine triphosphate (ATP). This is what tissue cells such as heart muscles and nerve cells use as an energy source, with this energy gone they quickly expend all of their stored energy and die. This all happens very quickly and once enough of your critical cells die, you will die.
Thank you everyone for reading, I hope you enjoyed and learned something new. It was a bit of longer more complex post this time with much more in depth science. Tell me if you enjoy this way or if you prefer when I just scrape the surface. Anyway, follow for more, like if you liked it and peace.
Ever wondered why the sky was blue? If you have, find out here.
Hey guys, I’m back, I didn’t go anywhere, but I though it sounded a bit more dramatic. Anyway today’s question ‘why is the sky blue?’ Now this question is a very classic question that is ask by many young children and is probably not even known by most adults. Now to understand why the sky is blue, we first need to think about the light coming from the sun. Now most of us class the sun as a big ball of fire, and you’d be wrong it is actually a large compression reaction, attempting to make hydrogen into helium. I’m getting a bit off topic, but my point is that the sun doesn’t just produce red or orange light, like fire does, it in fact produces white light.
You may have seen the sun and be thinking “No when I look at the sun it looks orange, you dummy.” Yes you’re right, when you look at it, especially at sun set, it looks orange. But this is the point we will eventually lead onto, when light travels through space it contains all of the colours of the spectrum: red, orange, yellow, green, blue, indigo and violet. You may also be thinking “Non of those look white” and the light spectrum is a question for another day.
Now just accept that all of those colours make up white light, but when the white light from the sun reaches our atmosphere, the light is scattered by the particles in the air and the blue part of the white light is what remains for us to see, thus making the sky blue. Then at sunset, the blue light is being dispersed above you and is out of your line of vision and you instead see the red and orange colours.
Thank you guys for reading and I hope you enjoyed, if you liked this post make sure you leave a like and follow for more answers. If you want me to write a post about the light spectrum and how it can be broken up, leave a comment and if you have any questions just message me in the contact page.
Hey guys, it’s me, that guy, you know, the one that can’t type and took like 6 tries to type this sentence alone – yeah, that one. Anyway, enough of the long cliche openers, today’s question is; why do we sound different on a recording compared to when we hear ourselves normally? Well, it’s actually quite a simple answer and it’s to do with how we hear ourselves.
So, when we usually hear people we hear them through our ears, and that’s just basic knowledge, that’s what you know in preschool, but here’s the thing; we don’t hear ourselves through our ears. I know, mind blown. Anyway, the way that the sound from our vocal cords gets to our ear drum is through our skull, rather than the conventional way of our ear canal. What this does is it spreads out the sound waves and as the sound waves spread further apart the frequency lowers, meaning that you hear yourself in a deeper pitch as opposed to how someone else would hear you.
So that begs the qustion; what does that have to do with how we sound on a recording? Well, when you hear yourself on a recording, you hear your own voice through the conventional way of the ear canal, meaning that the sound waves don’t travel through the skull first, meaning that the pitch is raised compared to how you would usually hear yourself. Now, this is the reason that people don’t like the sound of their own voice:
1) Because men think they sound manly and deep voiced when they don’t…
2) You aren’t used to this voice and your brain doesn’t see it as being you so the unfamiliarity creates a natural opposition.
Thank you all for reading and I hoped you enjoyed and learned something new – like if you did enjoy this post, follow for more questions answered and message me if you have a question of your own.
Hello and welcome to infinite knowledge!
This is the first post and this will just basically be an introduction to the site, so what will be on this site? Well, what i aim to do is find questions and answer them, then you can read them and then you have a deeper understanding of our world or universe. So what kind of questions will I be answering? I will be answering all kinds of questions the revolve around science and that will include: chemistry, biology and physics. I will not just answer the questions that I find, I will also answer questions that you guys have and if you have a question that you would like me to answer then send me a message at firstname.lastname@example.org and I will answer your question. Thank you for reading and I hope you have a great day, until the next time.