ब्रह्मज्ञान

6 Planets - Mercury, Venus, Earth, Mars, Jupiter and Saturn were discovered without using any telescope. Exact source is there discoveries are unknown as they were visible in night sky if anyone carefully observes them. Last three planets Uranus, Neptune and Pluto were discovered in 19th and 20th century using telescopes. If you are interested in the knowledge of space, stars and planets then the historical facts about discovery of these planets with naked eye might surprise you. Today nobody would like to search for planets in the sky without a powerful telescope. But there was a time when there was no telescope but curiosity to find something special in the sky. People tried to calculate future by looking at the positions of stars in the night sky. In order to do so, some ancient astrologers and mathematicians discovered the planets without any powerful equipment to do that. History of Discovery of First Six Planets of Solar System Around 2nd millennium BC , Mercury, Venus, Mar...

Most of us believe that if an year is divisible by 4 then it is a leap year. But it is not ? The proof of this statement is that year 1700, 1800 an 1900 were not leap year. But year 2000 was a leap year. How is it so ? It is because our most believed definition of leap year is incomplete. The complete definition of leap year will certainly enlighten you, and once you know the reason behind that definition, you will feel the mathematicians born centuries ago have really done some tremendous calculations to make a scientific calendar for our usage. Definition of Leap Year An year divisible by four is a leap year, except those which are divisible by 100. But those years which are divisible by 400 will be a leap year. Note : Most of us believe that actual length of an year is 365 days and 6 hours. Normal year have 365 days, while the remaining 6 hours of each year creates one complete day in the 4th year. But the truth is that one solar year is 365 days 5 hours 48 minutes 46 sec...

Why not in December ? This thought often came in my mind " Why do we add extra leap day in month of February ? ". According to common sense, anything extra should be added in the end, i.e. the month of December. Then why are we adding it in Feb. Some people give false explanation, that it is added in Feb because this month has got lowest number of days i.e. 28. Again it arises one more question, " Why February has got lowest number of days ? " . Answer to both of these questions are connected. Before we go to the answer just think about it that we have got 12 months to divide 365 days (except leap years). It gives us an average of 30.42 days in each month. So mathematicians should have decided to keep alternate months of 30 and 31 days to keep the calendar simpler. But sometime historical facts are not as simple as they seems to be. To get an answer to above questions you need to understand both history and mathematics of modern calendar. History of Modern Cale...

The month of January and February were the months created in the end. Roman calendar which is considered as origin of modern Gregorian calendar had only 10 months starting from March to December. If you take a close look at names of  month September, October, November and December, you will find that their names mean 7, 8, 9 and 10 respectively. So it is for sure that month of Jan and Feb were added in the end. But if it is so then Why do we celebrate New Year on 1st January?  According to common sense we should celebrate it on 1st March. The answer to this question is again in some historical facts that we are going to tell you. In our last article we discussed the reason behind adding leap day at the end of Feb . Now we are taking that knowledge a little further and finding the reason behind celebrating 1st Jan as New Year. Why do we celebrate New Year on 1st January ? According to historical facts Julius Caesar changed the calendar rules and invented his own Julian Cal...

Some people believe that Babylonians invented zero, while some historians believe that it was invented in India with its proper usage. Here we will try to find the facts related to origin of zero. In the beginning it must have been a tough task as it is like defining the nothingness in terms of mathematics. Every human civilization had its own number system, but a very few tried to define nothingness as it is not a natural number. Once you read about usage of zero in different civilizations, you will find that mathematicians of that age struggled with different types of number systems, unless someone invented zero. Invention of zero was incomplete unless you know how to use it. Today we are using a number system with the base 10, but there are several other number systems with a different base. The symbol used for ZERO was not the circle, that we use now. The facts about invention of ZERO are given below. Some of them will surprise you and will also let you know about who invented ...

Most of the people are currently getting educated that fossil fuel like Petrol, Diesel and Petroleum Gases will soon be out of stock. The actual truth might surprise some of you. In 2015 BP, a famous oil company, said that global reserves of fossil fuel would almost double by 2050. Even if the consumption increases the stock won't last in near future. But another truth is that usage of fossil fuel is polluting our atmosphere and if fossil fuels last within a few decades then it will be better for mankind. But today we are very much dependent on fossil fuel. Is it possible with current technology to live without these fuels ? What will happen to the automobiles that people are purchasing today? Won't the middle class person suffer financial loss due to sudden change in technology at such time. Thermal power plants that are currently generating electricity for general public will stop functioning. How would general public get electricity for their daily needs? Agriculture he...

BrahMos is the fastest cruise missile in the world. This statement is best to describe the capacity and capability of this missile. It is one of the best weapons that Indian Defense has got. It was developed as a joint venture of Russia and India and got its name from two famous rivers of these countries, Brahmaputra of India and the Moskva of Russia. India's Defence Research and Development Organisation (DRDO) played an important role in its development. How India's BrahMos Missile is better than others It can be launched from submarine, ships, aircraft, or land. It can be launched from a depth 50m under water through a submarine or from mobile launchers on land. Currently this missile can travel at a speed of Mach 3.0 . It means it can travel at a speed of more than 1 km/second or 3700km/hour . This speed is being upgraded to Mach 5. BrahMos-II is also under development which will have a top speed of more than Mach 7. The range of this missile is...

People often purchase an expensive camera in name of hobby, which sits idle in their home. If it is used once a year then most probably rechargeable batteries of that camera would be dead soon. It happens because we don't know what we need. We don't know what kind of photography we do or we can do. We usually get into competition with our friends, and most importantly we think that an expensive camera will click better images even if you are not a trained photographer. All these things makes us purchase an expensive DSLR while a simple compact camera or Smartphone Camera is sufficient for our usage. Choosing a camera is something that depends on usage. Usage of camera vary from occasional family photography to wildlife photography. Sightseeing photography is equally popular now a days. Today a smartphone camera or a compact digital camera is sufficient enough for family photography and sightseeing photography. Everybody like closeup pics of birds and animals, but the truth...

Most of us believed that there must be some aliens or alien civilizations living far away in the depths of Universe, who occasionally visit our planet and often seen as UFOs. Science fictions and Hollywood movies cultivated our brain with the knowledge of Aliens. Some people started believing that Aliens are our enemies and one day they will enslave our planet. Some experts on such topics believe that ancient structures like Pyramids were made by technology provided by aliens, or made by aliens themselves. Some historians claim our ancestors who lived in caves even carved pictures of UFOs on the walls. I can assure you that after reading this article, you will doubt if all those facts you believed true were just a mere imagination of our scientific brain. How to prove that there are no Aliens ? Usually we believe that Universe is very big and if we have evolved on planet Earth, then there must be life on any other planet with similar conditions to let the life evolve. It is an in...

Construction on pyramids have remained a mystery and different researchers give totally different theories about their construction. We know that pyramids were made thousands years ago, and we can't imagine a scientifically advanced civilization at that time, that a make such a huge construction which is still considered as an Engineering Mystery. Some say that these were made by Aliens, some say that people of that time must have had anti-gravity technology to levitate the heavy pieces of stones. Both of these theories seems impossible for a scientific mind. To find out which theory suits best about construction of pyramids, we need to know how old they are and what was the purpose of their construction. How old are Pyramids ? Archaeologists believe that Egypt's Old Kingdom society which ruled the Nile Valley after 3000 B.C constructed the large pyramids. Researchers tried to find the age of these monuments through radio-carbon dating, which works on those objects which w...

The length of Day and Year are based on Earth's movement around Sun. Similarly months are are made according to Moon's phases. But what made us put seven days in a week ? It could have been of 5 or 10 days. Why did we make a week of exactly 7 days ? The answer to this question is not as simple as others. There are a number of facts that are responsible for having 7 days in a week. Some of them are present in our religions, which are strongly affected by celestial movements of Earth, Sun, Moon and Planets. Once you read these facts, you will feel that you have learned something new. Why are there 7 days in a week ? Babylonians, which were present even before Greece or Rome, found 7 celestial objects in the sky, which were close to us and they distinguished they are not just like any other star in sky. They observed these objects without any telescope. These objects were Sun, Moon, Mercury, Venus, Mars, Jupiter and Saturn. Due to these 7 celestial objects, Babylonians used s...

Ghosts and Haunted houses have remained a mystery for centuries. Those who encounter such things explain them as real. A number of horror movies have entertained the people with strong hearts and made the kids scream. Almost all kids are fearful of ghosts but that fear fades away as we grow up. But those who face paranormal activities tell that its real. Those who believe in science think that such people have had hallucination, but how the science can explain the whole family going through similar hallucinations. According to science the reality (that our brain shows us) depends on the sensory input data (provided by our sense organs) and the way our brain interprets that data. Even if any one of these don't work properly, the results can be disastrous. Our brain is a biological machine and there are ways to hack it, and sometimes this hacking happens unknowingly. You will understand this statement as you read this article further. Before we explain the science behind paranor...

It is an interesting question, especially if you are a bit spiritualistic. Finding God or even just understanding him is the motive of most of the religions. Every religion has got a definition of God. Some say its one, while some say its many. The truth is that most of the people follow their religion either due to fear of God or just because they want something from their God, which can be happiness, health or money. Such religious people are very less, who are really in search of God. Where does God live ? The most common accepted answer to this question is that it is everywhere and recording all events of our life from above. All our good and bad deeds will be evaluated and calculated by him at the end of our life for further actions. Both kids and adults believe this theory, which is something puzzling as this definition should evolve as we grow up. If you ask a scientific-spiritualistic person the same question then the answer can be something like this. "It is an invis...

Degrees, Hours, Minutes and Seconds. All of them are in multiples of 12. What is so unique in twelve that we are using 360 Degrees, 24 Hours, 60 Minutes in an hour, 60 Seconds in a minute and 12 inches in a feet. We could have used metric system in these things as well, as we used in Weight and Length measurement systems around the world. Sumerians were the first people to use  Sexagesimal (base 60) numeral system around 3000 BC. They divided the circle in 360 degrees, the year into 12 months, day into 24 hours, hours into 60 minutes, and minutes into 60 seconds. Further this knowledge was passed to ancient Babylonians. But still the question remains that what was so important with number 12. Duodecimal system (also as dozenal) is a numeral system with base number twelve. Why most of the things are in multiples of 12 ? The best explanation to this question is the duration of year. One cycle of Sun (which is one year) is approximately equal to 12 cycles of Moon (Luna...

You must have seen people proudly telling about their forefathers or their ancestors. Feeling proud of who you are is a good thing but the wrong part about this feeling is that it can become ego very soon if you don't handle that proud correctly. Proud can be used to fuel your ego or it can be utilized as motivation to do something better yourselves. If you don't choose the correct part, you will end up as a shame for your ancestors. Why do people tell about their ancestors ? When we tell people about our ancestors, we are basically telling them that we belong to an elite class. Some people tell about knowledge level of their forefathers as they belong to a community where education was given highest priority, some tell about the fighting skills of their ancestors as they were serving armed forces of country from several generations, some tell about their wealth that they have acquired since generations, some tell about how much agricultural land they have from ages. There...

The festival of Halloween is known for its scary costumes, horror party themes and carved pumpkins to scare kids. This day a national holiday in USA. There are various concepts famous for this day, dealing with black magic and the holy nature of this day. This day usually celebrated as a party with ghostly themes on eve of 31st October is a profitable business for costume manufacturers and event organizers. Here we will tell you some interesting facts about this day that might surprise you. How did Halloween Start and Why is it Celebrated ? Halloween is also know as All Hallows' Eve or All Saint's Eve. It is the beginning of holy days of christian culture. All Hallows (Saints) are remembered on this day. But if you take a look since how long it is being celebrated, then you will be surprised. This festival have its roots in Celtic harvest festivals, particularly the Gaelic festival Samhain. These festivals were marked to celebrate good harvest and the beginning of winter or ...