SAHAPADI

     Step out of your house on a clear night and look up at the sky. You can see at least 2,500 stars. When you hear this, it might seem like a huge number, but you must understand how small this number is when compared to the size of the universe. The observable universe has a diameter of approximately 90 billion light-years. That means the distance from one end of the universe we have observed so far to the other is 90 billion light-years. There are at least 100 billion galaxies in it, and each galaxy contains anywhere from 100 billion to 1 trillion stars. Now, let's consider planets. Most stars have planets orbiting them. It is said that there are trillions of planets in the universe where life can exist. In our Milky Way galaxy alone, there are millions of planets with the potential to sustain life. If the universe is 13.8 billion years old, in such a vast universe and over such a long period, isn't there a possibility for other beings like humans—or even beings techn...

  There is a dialogue by actor Mohanlal in the movie Pakal Nakshatrangal (Day Stars). “Does this world belong to the living or the dead? The number of the dead is so many times more than ours. Aren’t we, the currently living, merely earthworms before their collective strength? Let’s put that aside… What is the guarantee that we are truly alive? Couldn’t the real world… life… be theirs? What if we die and step into a new life…?”  Hearing the idea that we might step into another world after death may sound a bit philosophical, but there is a secret the universe has hidden within it. A hapless cat, teetering between life and death. What if the state of a radioactive particle determines the cat's life? Today, we are going to talk about Schrödinger's Cat, the simplest explanation of Quantum Theory—the scientific revolution of the twentieth century. 'Schrödinger’s Cat' is a Gedankenexperiment (Thought Experiment), meaning an experiment that can only be performed through thou...

The 2025 Nobel Prizes in Physics have been announced. John Clarke and Michael Deboret, as well as John Martinis, who developed ‘macroscopic quantum tunneling’, shared the Nobel Prize this time. They have received the Nobel Prize in 2025 for the experiments conducted by these three together in the 1980s. What is that one experiment worthy of a Nobel Prize? What is Macroscopic Quantum Tunneling? That is what we are going to discuss today.  You can watch video explanation in malayalam language here If you are reading this article for academic purposes then you can skip this article. Because many of the things that are going to be said will have to be presented in a simplified way that anyone can understand. If you want to study this subject academically or in a more deep and technical way, you can read a very detailed description of it on the Nobel Prize website : Link   What is quantum mechanics? We have made many laws with the knowledge we have acquired about our universe over ...

India has taken a monumental step forward in its space program with the SpaDeX (Space Docking Experiment) mission. Launched aboard the PSLV-C60 rocket, SpaDeX is a groundbreaking project aimed at demonstrating in-space docking, a technology critical for ambitious goals such as lunar exploration, sample return missions, and building a space station. With this mission, India is set to become the fourth nation in the world to master this advanced capability. The mission involves two small spacecraft, SDX01 (Chaser) and SDX02 (Target), each weighing 220 kilograms. Once deployed in a 470-kilometer circular orbit, these satellites will undergo a series of precise maneuvers designed to test the ability to rendezvous, dock, and undock in space. This achievement is pivotal for future missions requiring multiple rocket launches to assemble large structures or refuel spacecraft in orbit. The Mission in Detail After their launch and initial deployment, the two spacecraft will separate, with the Ta...

At the end of 2024, there is very promising news coming from Russia. Russia has announced that it has developed an effective vaccine against cancer. Here you can find information about it. In February 2024, Russian President Vladimir Putin announced that they were developing a cancer vaccine. However, by December, all the work on the vaccine is completed and it will be made available to the public in early 2025 after clinical trials, Andrei Kaprin, a representative of the Russian Ministry of Health and head of the Radiology Medical Research Center, shared with Russian media. Russia claims that in the first trials, it was possible to significantly slow down the growth of cancer and reduce the size of the tumor by 75% to 80%. The report also states that this vaccine can prevent metastasis, that is, prevent the second occurrence of cancer. In addition, the other day, Alexander Gindsburg, the head of the Gamaleya National Research Center, a research center that developed the Sputnik vaccin...

How many people reading this article are getting decent internet speed? Even for a small percentage of people, mobile internet speeds are still very low. There may be those who get even 3G. I also still get 3g signal on my BSNL sim. But now there is an update from the technology industry. NASA is going to place 4G on the moon. Why set up 4G on moon? Let's see. What is the real move of NASA. NASA's plan to actually launch 4g on the moon began about two years ago. NASA is in talks with a number of mobile phone companies to finally develop the infrastructure to install 4G on the moon. Finally Nokia join hands with NASA for building this whole new network architecture on lunar surface. Many people may wonder why it is needed on the moon. In fact, it is not a technology to use the internet to take selfies on the moon and post them on Facebook and Instagram. We know that there have been many lunar missions. With several orbiters and rovers. Many are still there in working condition. ...