An object or person submerged in water appears to bend due to the refraction of light: the change in direction of light when it passes through transparent materials. The light rays coming from the submerged part of the object are bent as they leave the water.

Light rays are reflected and absorbed by opaque materials. While transparent objects and certain plastics allow the rays pass through them. While doing so they bend them to a larger or smaller degree

Mirages are also causes of refraction.

Thanks for reading.

…think about it.

How fast is light? How can we move? What do we see? Why does iron rust? What on earth can answer these questions?…science. Without the knowledge of fundamental science. We humans would be stuck in a primitive era with high death rates and low standards of living.

With science we can calculate the speed of our planet. Calculate the energy of a moving object. You can stare at this blog post plus your phone. What can’t we do with science ( don’t mention time travel or psychokinesis or a bunch of stuff like that our technology is pretty obsolete, compared with other aliens out there)

What is science

Science is a “phenomenon” brought about by human curiosity: we wanted to answer some basic what, when, how, and why questions. Such as what is that?, when was it made?, how is it made?, and why is it made? This could range from basic questions like stuff about fire, to extreme philosophical questions like stuff about the universe.

In my perspective, no one invents anything. But just discovers it. For example, if you think you’ve invented a rocket. Actually, you haven’t,but just discovered that doing something to some already preexisting materials would lead to a flying machine. Yes, great intellect and creativity would have to go into creating this; I’m just creating a link between science and engineering.

Science is understanding our world. Why engineering is using this knowledge for our gain and comfort. So thanks to science for giving us comfort and aid through technology. You won’t even be reading this if not for science. If you haven’t appreciated science, or you look down on science nerds…think again.

Hope to enjoyed this blog, like and comment.

Or entropy…

Are universe always tend to go towards a chaotic state. As it says in the second law of thermodynamics: the entropy of the universe always increases.

This doesn’t only apply in physics but in real life… yeah, you heard me. But it stuff you are already used to. The new item becomes old. An arranged desk becomes messy. The strong becomes weak and so on.

No matter how orderly something was before, it would tumble to a state of… chaos. But really, you might say “ oh yeah, my refrigerator goes from warm to freezing cold. It doesn’t go warmer or more chaotic”. Well, yes a refrigerator gets colder due to a loophole in this law: it is possible to reduce the entropy at one place by compensating for this and increasing it at another place. In the case of the refrigerator it increases the entropy behind the refrigerator, that’s why the back of a refrigerator is really hot.

Hope you enjoyed this please do like and comment. Goodbye.

This question is a relatively popular one. Even I’ve asked myself this before. When an object makes a sound, it travels to your ear and then where? It just disappears?

ZThe answer is relatively simple and well defined: Sound is caused by vibration of air molecules (you know what? any type of molecule) caused by waves, which are also vibrations. Essentially sound is a vibration in a medium. When a sound is made, the sound waves travel through the air to the receiver ( your ears).

Since sound is a wave. It seemingly “disappears” when the the molecules of the medium (air, water, metal, earth, and so on) becomes more stable and keeps vibrating less.

Sound can travel through any known medium. Which means that sound waves can’t travel in vacuum.

Thanks for reading.

Yes, why not…it happens all the time.

According to Newtonian theory this is blatantly IMPOSSIBLE. As according to this, objects can move only from one point to another in space, the don’t just disappear and reappear somewhere else.

But in the quantum theory that is precisely what particles can do. Physicists have discovered that electrons act like waves and can make quantum leaps in their seemingly chaotic motion within an atom. Schrödinger’s wave shows us the probability of finding a particle at a place and time. This gave yield to Heisenberg’s uncertainty principle which is just saying that we cannot know the exact position and velocity of an electron. Nor can you know the exact energy, measured over a given amount of time. It is at the quantum level all basic laws of common sense are violated. In contrast to Newton’s law, electrons can appear and disappear elsewhere. They can also be at many places at the same time. This quantum jumps are very common inside an atom. Even all the atoms of your body are teleporting you can rely on this from teleportation as all the effects average out.

Quantum entanglement

According to the EPR experiment two electrons in coherence can remain in a wavelike synchronization, so even if the are separated miles apart, there is still some invisible Schrödinger wave connecting them both. So if something happens to one electron that information is immediately transferred to the other. This is the concept of quantum entanglement

We have teleported photons, cesium atoms and so on. Well, not what you wanted to hear but, we are yet to teleport any organic life form. The process it a bit to complex. First you’ll have to entangle two atoms and then introduce a third one. COMPLETE THIS

But the bad thing about quantum entanglement teleportation is that the life form or particle would be annihilated. This is kind of like fictional cloning but destroying the original.

Bose Einstein condensate (BEC)

Quantum entanglement isn’t the only way. There’s also the Bose Einstein condensate. This involves the use of BEC, one of the coldest substances in our universe, to cool down matter to near absolute zero; this causes the atoms to tumble to the lowest energy state. Which causes their vibrations to be in unison. During this process some excess energy is shed of as light. We can send this light beam through fiber optic cables. Remarkably, the light contains enough quantum information to describe it. This light then hits another BEC and transforms it into the original matter.

I said teleportation was complicated not impossible. Possibly in the future we’ll find a way to teleport larger and more complex organisms.

We don’t see objects, but the light reflected from them. When white light hits an object, some of the wavelengths of its constituents. Only a specific wavelength is reflected (any color of the “rainbow”) it is that reflected light that enters our eyes, and then we see some one or an object.

So if anyone asks you what is that? Tell ‘em that’s reflected light

Because of how awesome photons are, I’m going to dedicate an entire blog post to it.

The answer depends on a few factors namely: what is going fast? humans or non living things and what speed are we talking about here.

When we talk about super speed we talk about speedsters like Quicksilver, the Flash and Superman. So we are obviously talking about humans. And the speed isn’t 9mph but 70 to 100 percent the speed of light. We already have nature speedsters, electrons, photons and a bunch of other particles. Electrons can literally travel at the speed of light and even teleport ( story for another day).

Let’s get to the main question: CAN HUMANS TRAVEL AT LIGHT SPEED WITH THEIR LEGS. Sadly (or even fortunately) the answer is NO. This is because of quite a number of factors.

Destroying ourselves

Before we begin, I’m not a biologist. So I’m not going to give any deep detailed explanation. But I’ll try my best. After all biology is science.

The human anatomy

Our bodies play a factor to our sluggishness.

Firstly, our muscles are incapable of moving us that fast even if you’re muscle bound. You probably already know that running for long periods can make us fatigued because our lungs are also incapable of supplying enough oxygen at that point that is why we often breathe deeply while running. Because of this our muscles loose oxygen and begin to ferment, building up lactic acid which in turn make our muscles sore and painful. At fast speeds we are using up oxygen far more than we are supplying it. So at light speeds, bring a spare oxygen tank.

Secondly, our joints would wear and tear pretty quickly thanks to friction. Thirdly, we are relatively weak species as we wouldn’t even have enough strength to brace ourselves and would probably be whiplashed at the start. Lastly, we will probably be going faster than the neutron synapses in our brains so how would we even use our legs. We’ll go faster than the speed it takes our brain to send a signal to our legs hands and eyes we will be paralyzed.

So if we could move that fast we will destroy our bodies. So if we found a way around this. The next problem would be:

Destroying our environment

And killing ourselves

Moving at light speed would mean going faster than air molecules. To you, they are stationary. And then you slam into them causing some nuclear fusion and then a nuclear explosion, even before this, you’ll ionize the air to plasma and ignite the atmosphere. “Hooray!! we went as fast as light!” is it worth it? Nope

Ps: moving at light speeds means you wouldn’t be able to see what’s behind you.

There are a lot of reasons why we can’t travel at the speed of light.

So yeah, we wouldn’t be able to travel as fast as light… with our bodies. But there are particles such as photons and electrons which travel at light speeds.

Every one reading this right now is subjected to gravity. As gravity acts on matter, we are all being pulled to the earth.

It might seem impressive but this is not so true. It literally takes the whole earth to pull your pencil to the ground. But we can pick up that pencil effortlessly.

According to the general theory of relativity: gravity is space pushing us down on earth. There is also a graviton theory that state that gravity is caused by attractive forces between particles , but as of 2020 gravitons haven’t been discovered yet.

With out gravity our world may not have existed. Gravity isn’t just between us and the earth. But between planets and particles.

White Light consists of different wavelengths of a color of light (red, blue, green, name it) all this wavelengths have different refractive indexes, therefore when they pass through a suitable medium, they split up to their constituent or separate form. Which are red, orange, yellow, blue, Indigo, and violet.

While raining, suspension of water molecules in the air refract light passing through them this then forms what we see as rainbows.

SO LETS GO GET OUR POT OF GOLD THEN

But the catch isn’t even the fact that there are no pots of gold at the end of rainbows getting to its end is the problem. As you change location, you move away from the water suspension causing the rainbow. Therefore, it begins to disappear. But even better than a pot of gold, you’ve got knowledge that will not leave you.

So the next time you see a rainbow think about the nature of light. Thank for reading.

Well a lot of things move even if they are seemingly stationary (well, microscopically) stars and black holes spin, molecules move, atoms vibrate, electrons spin, quarks well.. move. If you think about it even the heaviest objects have the tendency to move forever even with a teeny, tiny push . But they stop due to an external force significantly friction and air resistance (Newton first law of motion).

Even objects in a previously unstable position becomes stable if they move or rotate really fast? Well if you haven’t, try standing a cone with its top on the surface (…or you can use a mental image…), yeah, it tips over. But now try spinning it like a top, and if you did it right, you should notice that the cone was in that unstable equilibrium and didn’t tip over until it lost speed. Why? Or have you tried balancing on a stationary bicycle well… what if if was moving?

Do all objects move? Why, is it to be stable think about this. Like and comment below thanks.