MURMU NOTES

In 1977, the Voyager 1 space probe was launched to study the outer solar system. The two Voyager space probe have become the longest operating spacecraft in spaceflight history. 46 years later, Voyager 1 is now 23.816 billion kilometers (159.20 AU) away from Earth and is travelling at 60,000 km/h. Visualized location of the Voyager space probes. Despite Voyager 1 being the furthest man made object from Earth, we are still able to communicate with the space probe on a regular basis. But how far can it go before we can no longer communicate with it? Antena of Voyager space probes. To answer this, we need to know how Voyager 1 recives and transmit data from 23 billion kilometers away. A 20 kilowatt signal is transmitted from earth to voyager 1 using radio waves. It takes alomost 20 hours for th signal to reach the sace probe where it's sensetive antena picks up the signal. For comarison, it takes the rover on Mars an average 15 minutes to send messages back to Earth. Voyager starts se...

I magine if all the Earth's oxygen disappeared, just  for five seconds. Would we just hold our breath? What would happen to the atmosphere? What would happen to the enviroment? Take a nice deep breath, how satisfying that is? What you are breathing in is Oxygen, that takes up roughly 21% of our atmosphere, 78% of nitrogen. Although it's not the most abundant gas in our atmosphere , it is the most important. Without oxygen, plants, animals,  and us humans wouldn't be where we are today. Five seconds may not sound like a whole lot of time to be without oxygen. Most of us can go at least 30 seconds without taking a breath, so it would go too fast for your body to even notice if oxygen disapprars just for 5 seconds. Your breathing would actually be normal. However, what about  everything else? In just 5 seconds, the Earth would look completely different. Without oxygen, you can say goodbye to Mython Dam, Bhakra - Nangal Dam and other dams or other infrastructure that is made ...

Recently a flim called "The Kerala Story" was released, which is being discused a lot. In this film, it is shown how a secret plot was underway to forcefully convert innocent women to Islam and then they are being sent to ISIS. According to this film and the director, this has been done to approximately 32,000 girls who are now buried in the desert of Syria and Yemen, is this true?  Hitler's book Let's find it out, about 100 years ago, Adolf Hitler, the then dictator of Germany wrote a book "Mein Kamp" in this book he worte about a propaganda technique called "Big lie". Hitler wrote that to manipulate people, you need to lie so outrageously to make people think that no one can make up so outrageous lie, it was to make people think that there must be some truth in it. When an outrageous lie is told with so much confidence, some people believe it io be true, people think that no one can lie so much. Additionally another propaganda technique as told b...