The World in Your Eyes

By: Tsegazeab Beteselassie






Internet Contacts 1: Can you have contacts with Wi-Fi?
Link:io9.com

        Have you ever saw your friend in a classroom that was completely were zoned out, and then the teacher (seeing how helpless he was) calls him to tell you the answer to a problem, and he just stares and think "Boy, I wish I had my phone with that calculator I never used". And have you ever thought that it would have been really helpful if there was a way for him to find information without having to sneak his phone to school? Well now, recent developments in engineering have shown that it is possible to have the internet EVERYWERE. Scientists and engineers have worked together to make a primitive way of using contact lenses to carry the internet wherever you go. In other words, that friend of yours would be really happy.

    So how does this marvelous system work? Well, there is a circular antenna around the perimeter of the lens, which has a circuit that is holding up a LED at the center of the lens. The antenna is used to communicate with the computer that the scientists control so that they can monitor and change the color of the lens and what it does. The people that made this lens have already tested it on animals safely, namely rabbits. They are now planning to make a multi-pixel display so that you can organize your inbox, use the google calculator, and one of the most important uses, see Facebook profiles of strangers (you want to know who your saying hi to!). You can even wear eyeglasses with the LED display if you don't like contacts (like me). However, there could be a couple problems.

Antimatter Drive

By: Tsegazeab Beteselassie






Antimatter Drive: This is what an antimatter drive might look like.
Source:sciencegravity.blogspot.com-
 

     When you were a little kid (like me), have you ever wanted to travel to the stars? I bet you did. Well, right now, you can't go to the stars.
 Not for long.
Really, the only reasons why were not at Alpha Centauri (nearest star besides the sun) right now is because:

•  The cost to even go to the moon was more than a billion dollars.
• It is really really really really far.
• We don't have the technology to get there within the span of a human lifetime.

    That's it. Only three problems to get to anywhere in the universe. Of course, they are much bigger than they appear. But still, only three problems. Scientists have been trying to find ways to propel spacecraft through space, and they have devised many ways to solve this problem. I am here now to talk about one of these solutions. It is a very smart solution, and the name of it is called the antimatter drive.

Theory of the Stars*

By: Tsegazeab Beteselassie

The Sun: This is what the sun looks like (with glare protection,
probably).

     Most people know that the sun was born 4.57 billion years ago. But what I was thinking was, about an important property of light, that actually might make the birth of the sun a few million years back. But before I explain my theory, I have to explain how the sun was born.

 

     When a star dies, usually what happens is that stars start to shed it's outer layers. For many years, scientists didn't know why. Then, a person named Emanuel Swedenborg first proposed a theory that stars were formed by nebula's in space. You probably want to know what a nebula is. Well, it's when a large mass of atoms form a cloud in interstellar space. One of the most distinguishing facts about nebula's is that they are created by the death throes of a dying star.

 

    When a star starts dying, it means that the core of the star has started to make iron. But how does a flaming mass of hydrogen create an element like iron? Well, here's how.

First, when the star is born, it immediately starts fusing together hydrogen to make helium. The reason it does this immediately is sort of part of my theory. When the star gives out light, it means that it is fusing hydrogen together to make helium. But we don't know it's ready until it gives out light, don't we? Well, anyways, the heat forces repelling hydrogen atoms to fuse to helium. Helium's mass is less that it should be because some of the mass is converted into energy, some of it as, light, the rest, heat. This small observation is crucial to why a star dies at a certain element. Anyways, this process isn't supposed to get past helium, because we still have enough hydrogen. But what happens when we run out?

The Process of Fusion

By: Tsegazeab Beteselassie

Fusion: An animation of fusion.
Link: www.newgrounds.com

    Fusion is the universe's true power. It is what drives stars. Fission, splitting atoms, releases only so much energy. But fusion is so powerful, a kilometer of seawater can equal the worlds' oil reserves (in terms of energy). If only we can master this powerful force. But there is a possibility. And the possibility is called HiPER.

    HiPER stands for European High Power laser Energy Research facility. This ambitious group of people think lasers are the way to go in order to master the power of fusion. There are other ways, but they are focused on this one. They have a plan too. But first, let's take a look at the energy problems were facing.

    People predict that between 2000 and 2030, the global energy demand will go up by 70%. This means that we will need a generating capacity (for the world) of 5,800 gigabytes. That's five times the present energy capacity of the United States. They say that only laser fusion can stop this demand for energy. It is expensive, but it will reap benefits that greatly overwhelm the expense. 

    But what is this "plan?" How does it work? Will it work? They haven't tested it yet, but they will try. And now, I will show you the plan. 

    Since it is a little hard to explain, I will show you in this video.

Email me at: tsegazeab12@outlook.com or tsegazeab12@gmail.com. Thank you and subscribe!

Time Travel 2

By: Tsegazeab Beteselassie   

   

 

Warping space-time: This is an artist's representation of space-time being warped.
Link:kuark.org

    As you saw in my first time travel blog, (Time Travel: Into the Future, and Time Travel: Into the Past) there were two separate things that I had to do in order to time travel both into the future, and into the past. However, there is a better solution to this, that can use the same (or almost the same) way to time travel. It involves superfluids, speeds of light, and of course, time travel. Keep on reading in order to see what this solution is.

 

    First, lets think of a normal fictional time travel machine. You just get into the machine, press a few dials, and zip! Your there. However, the reality is much different. We can't actually tame time and force it to flow backwards for everybody. However, we can go through it. The reason why is that space and time are interconnected, in something called space-time. This was predicted in Einstein's theory of general relativity. I think this is one of the reasons that we experience time. But there's more. As gravity is produced by warping space-time with large bodies, and since space and time is interconnected, Einstein came to the conclusion that the larger the body, the more space, and time, is warped.*

Hypervelocty Stars: What are They?

By: Tsegazeab Beteselassie

Supermassive black hole: This is the start of a hypervelocity star.
Link:www.livescience.com 

In our galaxy, there are millions of millions of stars. Since our galaxy is a spiral galaxy, the spirals are spinning. That means our star, and every star, is moving very, very, fast, up to a million miles per hour. But not relative to each other. But there is a class of stars that are moving the same speed, but in a very different way. They are called "Hypervelocity Stars".

 

    What are they? You may ask. Well, they are stars that can travel up to a million miles per hour. That seems normal because normal stars are traveling the same speed. But that speed is not relative. So compared to other stars, hypervelocity stars are moving a million more miles an hour. That's 0.2% of the speed of light! But how can these hypervelocity stars move that fast?

 

    Since stars move at a million miles per hour, and since their should be tiny differences, shouldn't the faster ones be the hypervelocity stars? The answer is no. The reason is that most velocities (except the speed of light) add up. So the stars can't be the faster ones in a spiral galaxy. Also there is another problem. Stars like these come like, once in every ten thousand years. I don't think that there is a means to propel a star a million more miles per hour in a spiral arm. So we need another theory. But what other reason could they're be for a hypervelocity star?

Life and Death of a Star

By: Tsegazeab Beteselassie



Hypernova: This is an artists representation of a hypernova.
Picture is from:scitechdaily.com 

On a clear night, if you ever had looked at the sky, you will see stars scattered through the sky. We should know about them, because their death made our sun, and eventually, us. Our sun was created from dust clouds in the night sky, which were the remains of dead stars. The clouds were, in turn, made by supernova explosions. But lets rewind to the moment a star was born.

 

    We will start with a dust cloud, floating through the sky. The molecules' gravity will attract one another. Soon, the dust clouds will compress into a dense mass of hydrogen and helium. The pressure will get the compressed mass very hot. However, if fusion never starts, it will turn into a brown dwarf, nicknamed 'false stars'. However, if fusion starts, then a star will be born. Fusion will eat up the stars mass, making hydrogen into helium by fusing them together. Fusion happens when the pressure of the star will overcome the repulsion between atoms, and smashes them together at high speed. This process will continue for millions, billions, or even trillions of years, depending on the star's mass. But, you may ask, eventually the star will run out of fuel to supply fusion. Then what happens?*

The Paradox of Infinites

By: Tsegazeab Beteselassie

  

Infinity: This is an artist's representation of infinity.
Picture is from:depositphotos.com 

  What is Infinite Life? (Don't worry, this is not off topic) By normal means, it means to be immortal, to live forever. But in my terms, it is something radically different. It means there is life everywhere. And I am serious. As in, life to the subatomic level, to the largest scales. Not a spot without life. There is an infinite amount of life. You can already see the paradox forming. How is this possible? First, let's look at the paradox's origins.

    Now for a bit of science.

    By now, most scientists believe that the multiverse is real. But on most shows, such as on Nova, Fabric of the Cosmos, it shows the multiverse as black 'bubbles', some with galaxies on them, others, colored dust clouds, in a swirling blue mist. But as far as we know, universes don't actually have a physical barrier that separates them from the multiverse. So could there actually be only one universe?

    This notion seems to contradict string theory, which says it is possible to have more than one big bang, more than one universe. So does this mean that string theory is hopeless, or wrong? As an optimist in string theory, I think that this is not so. But how, you may be asking, when it seems we

have irresistible evidence? But my answer to that question is that maybe the 'bubble universes' is a simplification. How? Because maybe the region between the universes has no space-time fabric in it. So Nova and other TV shows simplify by making the universe look like a bubble. Without this simplification, we will get the misconception that there is only one universe. But there is another problem, one that I cannot find a solution to. And this is about the infinity of the multiverse.