Thursday, August 27, 2020

Aliens and Where are they now?

Where are all the aliens?

Ever since I wondered that, why don't we see flying saucers flitting around? Why don't we see life out there in the cosmos? Frank Drake began searching for alien signals back in 1960 so far, nothing. With each passing year this nonobservation, this lack of evidence for any alien activity gets more puzzling, because we should see them.

Best books on science and technology to buy in discountThe universe is 13.8 billion years old, if we represent the age of universe by one year, then our species came into existence about 12 minutes before midnight. western civilization has existed for a few seconds. Extraterrestial civilizations could have started in the summer months.

Imagine a summer civilization developing a level of technology more advanced than ours, but tech based on accepted physics. That civilization could program self-replicating probes to visit every planetary system in the galaxy. Intergalactic colonization isn't much more difficult, it just takes longer.

A civilization from any one of the millions of galaxies could have colonized our galaxy. So where is everybody? it's a puzzle because we do expect these civilizations to exist, don't we? After all there could be a trillion planets in the galaxy may be more.

You don't need any special knowledge to consider this question, scientists have explored through many peoples this and found that they often frame their thinking in terms of barriers that would need to be cleared, if a planet is to host a communicative civilization. They usually identify four key barriers.

Habitability

That's the first barrier. We need a terrestrial planet in just right "Goldilocks zone," where water flows as a liquid. They are out there.

In 2016, astronomers confirmed there's a planet in the habitable zone of the closest star, Proxima Centauri so close that break through starshot projects plans to send probes there. We had become a starfaring species.

But not all worlds are habitable. Some will be so close to a star and they will fry, some will be too far away and they will freeze.

Abiogenesis

The creation of life from non life that's the second barrier. The basic building blocks of life aren't unique to earth: amino acid have been found in comets, complex organic molecules in interstellar dust clouds, water in explanetary systems. The ingredients are there, we just don't know how they combine to create life, and presumably there will be worlds on which life doesn't start.

Development of technological civilization

The development of technological civilization is the third barrier. Some say we already shares our planet with alien intelligences. A 2011 study showed that elephants can cooperate to solve problems. A 2010 study showed that an octopus in captivity can recoginze different humans.

2017 studies show that ravens can plan for future events but they can't contemplate the breakthrough starshot projects, and if we vanished today they wouldn't go on to implement breakthrough starshot.

Evolution doesn't have space travel as end goal. There will be worlds where life doesn't give rise to advanced technology.

Communication across space

Is is the fourth barrier. Maybe advanced civilizations choose to explore inner space rather than outer space, or engineers at small distances rather than large. Or may bee they just don't want to risk an encounter with potentially more advanced and hostile neighbor.

There will be worlds where for whatever reason, civilizations either stay silent or don't spend long trying to communicate.

Now again the same question arises that,

Where is everybody?

You can still have some fun playing with the idea aliens are here. Some say a summer civilization did colonize the galaxy and seeded earth with life, others that we are living in a cosmic wilderness preserve.

Tuesday, August 18, 2020

The Internet of things (IoT)

Internet of Things (IoT)

Network of physical objects that are connected to the internet allowing them to send, receive and exchange data. Now in digital world we can make everything take to each other. We can make our phones talk to each other, We can make Facebook talk to each other. But In the physical world not to much. This is where our lives and technological development kind of stopped.

But now we are able to build a network so, multiple of physical objects your chair, your table, your lounge they are connected to the internet. It allows you to send so you can create and transmit, receive so that you can receive and interpret and exchange data, you can have conversation with things around you.

So IoT will allow multiple physical objects, like your chair to be connected to the internet. They can send just how good chairs are to other chairs and you. They can receive just how many people want those damn chairs. They can have conversation with other things that are around that chair.

So, we are entering a very exciting time where we will have chairs, couches pretty much everything that's in your home connected to internet or at least have conversations with the things around you.

Let broke it into 4 sections

Hardware

The hardware is what actually allows us to connect digital items to physical objects. So I can put a device on the door and it will tell me when the door opens. So we have hardware that senses things

Data

we have data, data actually starts to make sense of what all this is. It's the things we push around all the time everyday we don't really think about. We used to push data around in heavy, kinda standardized format. We are seeing a lot of different ways of doing this now.

Now, data is getting leaner. We can say more with less. Data is becoming the universal language. Not any other language, but the universal language of things. What we do once we have that communication, once we have that piece of information? then next part comes that is:

Software

The software is what interprets, it's what controls information. It's what analyzes the information and allow it to do stuff. It's the things that actually take pieces of data from these pieces of hardware and makes it do stuff that is valuable to you.

Connectivity

If all the stuff above is not connected it wouldn't mean anything. Connectivity of the last 10 years we have seen go from cellular phones that were size of bricks, through to Wi-Fi to ethernet to 2G GSM 4G. Essentially it got cheaper and it has got faster.

More on IoT

We are entering in stage where everything will be connected. The impact of IoT will be $11 trillion a year by 2025 across factories, cities, human, health, work cities, offices, vehicles.

Why now? Because of the ultra low cost of the hardware, high availability of resources, the low level of difficulty to compile them and put them together and highly digital and connected universe that is driving us toward not just connecting our digital space in our digital lives, but our physical space and the things we actually deal with everyday.

IoT is the beginning of the new era.

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Science and God

Everybody has their own view on reality whether a scientist,, a philosopher or a theologian. You see philosophers and theologians they debate abstract ideas. We wonder what practical impact are they have on our day to day lives.

What I have studied that is God and science are integrated and even more so with the advent of modern science in the last hundred years. It actually helped us make some connections of those seemingly mystical qualities about God. I would like to give three examples to illustrate this.

First one is probability, probability in modern sciences is interesting thing. You see pretty much everything has a probability whether it's the normal or really unusual. Let me give you an example of those unusual things. You see if we take a atom again, there's actually a probability that a particle in the atom can leave the atom and at the same time can violate the law of conservation of energy.

Now the law of conservation of energy says that energy is neither created nor destroyed. Yet a particle in the atom without having the energy to do so and no available energy, can overcome a energy barrier and just leave. That's the weirdness of probability.

Now, why is this interesting? Well, theologically we wondered how can God act in these seemingly miraculous ways. I mean isn't it just magic and myth for example God is described as Omniscient(all knowing) outside of time and describe as omnipresent that is everywhere present.

We wonder how is this possible. But yet what if there is a finite probability that God could act miraculously and that's not impossible. What if there's a possibility that God doesn't overstep the bounds of science but actually works within the bounds of nature and science.

You see what I am saying is this, if modern science tells us there's a probability for unusual activity happening. Then we should not be as surprised that God can act and do miraculous things and there's still a probability for that.

Now, I would like to hone in two of these things that I just mentioned that of omniscience and omnipresence and use this in our next examples.

So next, the theory of relativity. In our thought connections that how that it connects to omniscience that is God is outside of time and knowing all. Well, the theory relativity came about in the 1900s by Einstein. It's the theory that has been proven and described over and over throughout the decades.

It has many facets and the one we will focus on is that between velocity and time. Simply said that the faster the object goes the more lag in time you have. There's an interesting sets of experiment that were done to illustrate this in 1971. That is known as Hafele Keating experiments.

They took a couple cesium beam atomic clocks, these are really accurate clocks. They synchronized them and they placed one on the ground and one in a commercial airline that flew around and later landed on the ground. Well, what did they found? The clocks are no longer synchronized. They were actually off by an order of nanoseconds and that can be calculated from the theory of relativity.

Which was behind in time, the one which traveled faster on the airliner and later returned to earth. Well this idea can be expanded such that the faster you go, the slower time goes. Until you reach apex at the universal speed limit, that's the speed limit of light and you know at the speed of light the time is no longer progressive.

You see their time is not a factor for light. We might say light is outside of time. Well, that's weird but it is theory of relativity. What is interesting is theologically. Well, theologically we know that god describes himself as light. Yet we wonder, how could could god be a mission that is outside time and knowing all.

You see if it consider God we know he can see past, present and future all at the same time and knows all. That seems eerily similar and parallel to the idea that photon could be outside of time. I am not saying that god is a photon. What I am saying is that in modern science if it can tell us that light can be outside of time. We should not be surprised that God could be outside of time.

Let's evaluate the third topic in modern science that I want to look at that's entanglement and how that related to the idea of omnipresence. Well entanglement is really interesting strange idea that came about in 1935 by Einstein and others and say you have two particles and they could be photons, electrons, some molecules and various things.

If they are connected or entangled a change in one will effect the change in another. Well, you think no big deal but the interesting thing is you can separate them more and more and more and they can be still be entangled in this distance doesn't seem to be a relevant factor.

If modern science tells us that particles can interact over variable distances, then we are not as surprised that god can interact with humans over a variable distances.

Conclusion

So, you were thinking that so what? I am again saying that, I believe that science and God as I have understood them are totally interconnected and integrated. These seemingly mystical qualities about God that we thought were magic actually have an interesting precedent in modern science.

I would recommend to read the book "God and the new physics" by Paul Davies. This book will clear your all doubts about this topic. If you want to buy this book in discount click shop now below.

Sunday, August 16, 2020

What is 5G

What is 5G and What it can do?

Imagine that you are downloading a game on your console. But as many of you know game files are large and may take many hours just to download.Imagine you are in a group video call but because of the latency your call is very laggy and glitchy which destroys the experience you have with the person on the screen.

Imagine once more that you are living in a very urban area and because of all the network interferences. You only see one barn phone instead that a perfect five. I will admit that last one it's quite a scary thought for my generation but these are all issues we face and there are dozens of other connectivity problems that plague us every single day.

But what if I tell you that there is a solution to this entire problem that instead of waiting hours to download one you could download dozens in under a minute. That instead of dealing with lag on your video chat you can enjoy group calls with your friends without the worry of a connection error popping up on your screen.

That if you are living in a very urban area you can still have fast connection with those by bars on iPhone. Now, what if I told you that this solution is already here, this solution is the future of internet. It's called 5G.

For those of you who do not know about 5G, it stands for fifth generation mobile communication systems. It is the newest type of cellular mobile connection. It's essentially the successor 4G LTE the current connection type we see on our phones today.

Let me take a minute and take it down the road how we got here. In the first place it all sorted 1G well into the mid 1980s. This is what power does brick phones and all they really allowed that user to do was to call and talk later.

Later 2G comes around which provided features such as texting which revolutionized the way we communicated. Now technological advances such as 3G which finally allowed us to have mobile data as well each other pictures via text.

Later on we got 4G which increased the broadband speed of our mobile data by 10 folds essentially allowing us to do stuff such as stream HD movies through our phone. Now comes 5G with revolutionary type that can go to empower revolutionary technologies such as augmented reality, virtual realities and even smart cities. Which uses data providing from our electronic devices to enhance the quality of life we would have.

According to the international telecommunication Union a specialized agency of the united nations that deal with telecommunication technologies 5G can reach peak speeds of 20 gigabytes per second.

This things happens when some guest comes at your home and ask your wifi password and they gets connected to it, the problem comes when more and more guest come around and ask your get connected to your wifi because as devices density per square mile increases the speed of your network decreases.

Right now the connection density for 4G is around 5000 devices density per square mile. The connection density of 5G is however is two million devices per square mile, literary getting rid of any low network problems in highly populated places.

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Saturday, August 15, 2020

How to get your brain focus?

A few years ago, I began to observe something in my own behavior that made me a bit uncomfortable. Thar was from the moment I woke up to the end of the day, my life was series of screens. I started the day with the thing that woke up me that is my phone and so I sat there in the bed watching videos on Instagram and bouncing around between the bunch of applications.

But then it was time to get up from the bed and cook breakfast, then I focused on the iPad which was kept beside the oven and then it was time for some work then I focused on a different screen that is my laptop. But there was one particular offender out of all of these different devices that I wasted more time than anything else. That was this dastardly thing: my phone.

I could spend hours on this thing every single day. So, I decided to essentially, for all intents and purposes, get rid of the thing for a month. As an experiment I thought " I'm going to live on this thing for just 30 minutes every single day at a maximum."

Then, I observed what happened during this time. It took about a week to adjust downward into a new, lower level of stimulation, but once I did, I noticed that three curious things began to happen.

My attention span grew. I was like I could focus on things, not effortlessly, but with much more ease than I could before this experiment started.
In addition to this, I had more ideas that arrived at my mind, and on top of this.
I had more plans and thoughts about the future.

Getting rid of one simple device led to these three effects. WHY? Noticing this a few years back led me on this long journey to get to the bottom of what it takes to focus in a world of distraction. I pored over hundreds of research papers from front to back at my office. I flew out to meet experts around the world who study focus; I conducted more experiments on my self.

How does technology influence our attention and our ability to focus? I want to start with the attention span that we have. This is how we pay attention with world around us and how much control we have over our focus.

The research around this particular area is fascinating. It turns out that when we do work in front of a computer, especially when our phone is nearby, we focus on one thing for just 40 seconds before we switch to doing something else, But the reason this is the case is not what we might think after looking after research.

We think that the problem is that our brains are distracted. But after looking at the research, this is what I came to know as a symptom for the deeper problem, which run much more deeper as the root cause of this distraction.

It's not that we are distracted; it's that our brains are overstimulated. It's that we crave distraction in the first place. Our brains love these tiny little nuggets of social media and email and things that we do over the course of the day.

There's even a mechanism in our mind called the 'novelty bias', by which our mind rewards us with a hit of dopamine, one of those wonderful pleasure chemicals, the same one we get when we eat and order a whole medium pizza from Domino's. We get the same stimulation when we check Facebook. So, our mind is craving distraction at the first place.

What I think, after doing this deep dive into the research, we need to make two fundamental shifts with regard to how we think about our attention.

We think that we need to fit more in. We don't need to fit more in. We are doing enough; we are doing too much. We are doing so much that our mind never wanders anymore, It's sad. This is when our best ideas and plans come to us. We need more space.
We like to think distractions as the enemy of focus. It is not. It is a symptom of why we find it difficult to focus, which is the fact that over mind is overstimulated.

So to be more focused in life or to be more focused on a particular thing you are doing you should have more space and do not get your mind overstimulated.

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Thursday, August 13, 2020

The science of friction

The science of friction and its surprising effect on our life

The study of friction, wear and lubrication is known as Tribology. You have all experience all three things. Remember the last time you tried to move heavy object across the floor, and you could feel something is resisting you? That would be friction. Friction is the force that opposes motion.

Wear is loss or transfer of material. It's reason you have to replace your favorite shoes, because eventually the soles disappear. Lubricants are used to reduce friction and wear. They loosen up those stubborn rusted bolts that just otherwise will not budge.

But tribology is also defined as the science of interacting surfaces in relative motion. So, interacting surfaces in relative motion: there are lot of those in the world. As you are sitting right now, are you wiggling your foot at all or may be shifting around in your seat? Tribology is happening.

Even the smallest shift in your seat involves two surfaces moving relative to each other. Your tribological interaction for the shift will be different than the person next to you. This is because the clothes you are wearing change the friction between you and the seat. If you are wearing silk, it's easier to squirm around in the seat than if you are wearing wool. That's because the friction is lower for silk.

If you are moving your ankle at all, did it make a popping sound? you have that, right? you get up, you move around, and some point cracks or pops. That sound can come from the fluid that lubricates your joints just moving around. You are essentially releasing gas bubbles in that fluid.

That sound can also come from the tendons simply moving over each other. Pretty common in the ankle, so any of my fellow wigglers out there may suddenly find themselves curious about the tribology of tendons.

At some point of the day you must have brushed your teeth. The triblology is in action. The toothpaste and toothbrush are working to remove or wear the plaque from your teeth. You have the food, which will break and wear while you are eating, and that food is interacting with your teeth, your tongue, your saliva, your throat and all of those interaction are going to influence your experience of eating.

Tribologists are looking at lubricity, the coefficient of friction, as ways to connect mouth feel and texture to what you are experiencing, so that if we are changing the formation of what we are eating and drinking so that sugar content or fat content are different.

You have your personal interaction with the car, the car interaction with the road and everything under the hood and in the drivetrain. Some routine maintenance is directly connected to tribology. You know how many tires are recommended for using before you replace them. You regularly check the treads on the tires.

You are actively monitoring the wear of your tires. Tribology is the study of wear and friction, and with tires, friction can be the difference between a safe arrival and a car accident. This is because the friction between your tires and the road will influence your acceleration, your deacceleration and your stopping distance.

As a driver, you instinctively already know how important friction is, because you know that when the roads are wet, they are more dangerous because they are slippery. This is because the water is reducing the friction between your tires and the road. You may recall that friction is the force that opposes motion, so water reducig that force means it's now easier for you to move, hence it's more slippery when the roads are wet.

Something else to consider is that overcoming friction takes energy, so you are loosing energy to friction. This is one way your tires can influence your fuel efficiency. In fact, did you know that about one third of fuel that you put into your internal combustion engine vehicle will be spent overcoming friction.

Monday, August 10, 2020

Water

The weirdness of water

For the last fifteen years, kind of since high school, I have been studying water and I have a secret to tell you: water is weird. It's weird, but it's also fundamental for our lives, and fortunately, 70% of the planet is covered with water. But unfortunately , just 1% is clean water, that is very little.

Today, one in six people has lack of fresh water. In the year 2050, it will be one in two people with lack of fresh water. So, the world need fresh water.

Now, I am going to tell you that how we can use weirdness of water to get more fresh water. So, you see, water is very important. Let us compare water with another material: with silicon. Silicon is also abundant on the planet, 28% of the earth's crust is composed of silicon.

Silicon also has a number of unique properties. The fact that silicon has unique properties and that we have learned how to use these unique properties of silicon allows us today to have cell phones, computers, flat screens and all these instruments that govern our daily lives.

Silicon has just half a dozen anomalies and water has 70 anomalies. So, it's our duty to find ways to use these anomalies behaviors of water to have more clean water. So, how are we going to do that? Before answering these question let me introduce to you two anomalies of water.

Density

Most liquids contracts under cooling. Water does the contrary, If you cool water it will expand and that's why ice floats on the water, because ice occupies more volume, it is less dense, and it floats on the liquid surface. But much more interesting than ice floating into liquid water is the fact that zero temperature water floats in four temperature water.

When you have winter in the north hemisphere, you have ice followed by zero temperature water, and far at the bottom of the river or lake, you have warm four centigrade water.

Diffusion

This is the second anomaly of water, it is related to mobility. Water, when it's more compact, its molecules move faster. I know that when we have more cars into traffic, the car moves slower. When I have more people in the shopping center, people moves slower. But in water, when you have more water molecules, they move faster.

So, let us now understand why this happens. So, water is composed of one oxygen and two hydrogen. Inside the water molecule, the interaction is covalent interaction. But between the molecules you have second interaction, the hydrogen bond interaction. Covalent bond is very close, is very strong and very tight. Hydrogen bond is further apart and is twenty times weaker. So that's why molecules actually move around when they have more particles.

How can we have fresh water in future?

The answer is by using the above anomaly of water. When water molecules are closer they move faster. So in nanotubes water moves faster it is as such that water loves nanotubes, but salt doesn't. Salt leaves behind in nanotubes and salty water that cannot be used for drinking come out as fresh water.

In this way we can fresh water from sea water. We can much more technologies in future by which we can obtain fresh water. But we still should save water as much as we can because until 2050 one person out of every two person in the world will lack of fresh water. It could be anyone either you or me so let's save water.

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Thursday, August 6, 2020

Top 5 smartphones to buy in 2020

1. Apple iPhone 11