Tech With Rob

Hi Guys, today I am going to post about :- THE GRANDFATHER PARADOX   So now let's look at the grandfather paradox :- The grandfather paradox is related to time travel . What is time travel ?  In short, time travel means going into the future or the past like Doraemon , my favourite cartoon. Imagine that you have a time-machine , and you travelled back in time to your grandfather's childhood's period . And you killed your grandfather .  Then If your grandfather was killed in his childhood , then your father would not have been born and you also would not have been born,  then you would not have gone to the past to kill your grandfather . Then your grandfather would not have been killed , and your father would have been born . Hence, you would have been born. .............................. And the loop continues ... This is called the grandfather paradox. But wait, if you kill your grandfather, will you be alive ???? Can you solve this paradox?...

Hi Guys, today I am going to post about :- PARALLEL UNIVERSE Universe Prallel universe is a theory which simply says that there many other universes (multiverse) other than our universe ... In this universe  at this time you are  reading , but in the other universe you might be a sleeping , eating  or anything you can think about or you might have not been born yet. So in simple words we can say that parallel universe is a dream land where everything is possible .  Scientists have divided the parallel universe  into 4 levels :- 1) In this level there are many copies of yourselves in different universes , doing different things, like I told you before.  And the rules of physics and nature is same in all these parallel universes . Parallel Universe (Level-1) 2) In this level it is said that all parallel universes including our universe  is inside a big bubble . These bubbles either breaks or joins together to form a new parallel univer...

Hi Guys, today I am going to post about :- SPIDER-MAN CLIMBING SUIT I have already told you that we can climb using technology and also how do spiders climb wall. If you have not read it then click the link below   https://rugber.blogspot.com/2020/05/How%20do%20spiders%20crawl%20.html                                                           and https://rugber.blogspot.com/2020/05/Van%20Der%20Waals%20Force.html So if we make a gloves which has small hair like structures which is only a few nanometers thick, then there is a chance, that we could climb the wall like spider-man. The few nanometers thick hair will increase the surface area of contact, increasing the Van Der Waals force. This force will oppose the force of gravity, hence climbing the wall. But the problem is that we can't make structures (hairs) this small. And to oppose gravit...

Hi Guys, as I have said today I am going to post about :- HOW DOES GRAVITY WORK ? I have already told you about gravity now let us look how does gravity works. After the discovery of gravity by Isacc Newton at 1687, there was a question 'How does gravity works'. And Isacc Newton proposed that two bodies are tied by a invisible string called gravity. In 1915, Albert Einstein published the 'Theory of general relativity' where he said that gravity is nothing but only the curvature of space-time fabric (3-dimension+time). The space time fabric.   The space-time fabric is a stretchable cloth which is completely spread over the universe. Mass and enrgy interacts with the space time fabric cuasing a curvature in the space-time fabric as shown above. Due to this curvature the earth and other planets revolve around the sun. You can make your own space-time fabric as shown below by a simple stetchy cloth tied on every sides, and put a object on the centre of the cloth and roll a ...

Today I am going to post on the topic about :- "Can We Make A Mini Arc Reactor ?" First of all what is a arc reactor, a arc reactor is a way of harnessing the energy produced by the nuclear fusion of two Hydrogen atoms, the same process which happens in the core of the sun. It is the cleanest energy than all other energy. It can produce upto 1 gigawatt (1000000000 watts) of electricity. But this technology is not used in the present, because for the process of fusion very high teperature and pressure is needed like the core of the sun. And the energy invested for this is more than the output of the process. Recently, we have acquired this high pressure and temperature, six times the pressure and temperature core of the sun. But to acquire this type conditions more electricity is used than the output. So, we don't harness energy by this technology. But we can overcome this problem in the future, and by overcoming we can creat...

Hello friends, as I have promised I am going to post my topic about :- BIG BANG THEORY, NUCLEAR FUSION, BLACK HOLE I have told you about the big bang theory, nuclear fusion and black hole. I am re-introducing these concepts so that you have a better grip in these things So as I have said that our universe was formed by a rapid expansion or also you may say a explosion also. Before the Big Bang there was no universe there was only space and point of singularity and nothing else. In this singularity was the whole universe. But we don't know how was the point of sigularity been formed we only knew that it was there.   Then gradually, the singularity started expading rapidly due to the dark energy. It is a mysterious energy and we don't know anything more about the dark energy. The Dark Energy During the Big Bang there was matter and anti-matter, but now there is only matter, no anti-matter. Some scientists think that while the expansion the matt...