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Gulsan_gautamEmailNitrogen is the gas present in the highest percentage in air. Air is a mixture of several gases that together form the Earth’s atmosphere, which is essential for life. Among all these gases, nitrogen occupies the largest portion. Approximately 78% of the air is nitrogen, making it the most abundant gas in the atmosphere. The…
Introduction On Earth, writing with a pen feels simple and natural. We press the pen on paper, ink flows smoothly, and words appear. But in space, this simple action became a serious scientific problem. Early astronauts discovered that ordinary pens leaked, stopped working, or sprayed ink inside spacecraft. This problem may sound small, but in…
Introduction Christmas Day is one of the most widely celebrated festivals in the world. It is observed every year on 25 December and is mainly known as the birth anniversary of Jesus Christ, who is the central figure of Christianity. However, Christmas is not only a religious festival; it has also become a global cultural…
Gulsan_gautamEmail Christians celebrate Christmas Day to remember and honor the birth of Jesus Christ, who is believed to be the Son of God and the Savior of humanity. Christmas is celebrated every year on 25th December by Christians all over the world with great joy, faith, and devotion. According to Christian belief, Jesus Christ was…
India’s first metro rail system is the Kolkata Metro, which marked a major milestone in the history of urban transport in the country. It was the first rapid transit railway system in India and also the first in South Asia. The Kolkata Metro was built to solve the growing problem of traffic congestion in a…
“Lab 257” is a building number at Plum Island, New York. This laboratory was used for animal disease research, especially dangerous viruses that affect livestock. Why is it mysterious? Many people believe that: Connection to Lyme Disease Some researchers and writers claim: However, official science says: Government Secrecy The mystery grew because: Books and Popular…
Kelvin temperature is a method of measuring temperature using the Kelvin scale. It is the standard temperature scale used in science, especially in physics, chemistry, astronomy, and engineering. Unlike Celsius or Fahrenheit, the Kelvin scale begins from absolute zero, which is the coldest possible temperature in the universe. Origin of the Kelvin Scale The Kelvin…
Utkarsh_bauddhEmail ब्लैक होल ब्रह्मांड की सबसे रहस्यमयी और शक्तिशाली वस्तुओं में से एक है। यह अंतरिक्ष का ऐसा क्षेत्र होता है जहाँ गुरुत्वाकर्षण बल इतना अधिक होता है कि प्रकाश तक बाहर नहीं निकल पाता। इसी कारण इसे “ब्लैक होल” कहा जाता है, यानी ऐसा गड्ढा जो पूरी तरह काला दिखाई देता है। ब्लैक होल…
Utkarsh_bauddhEmail हमारा सूर्य नाभिकीय संलयन (Nuclear Fusion) नामक प्रक्रिया के कारण जिंदा है और लगातार ऊर्जा देता रहता है। सूर्य लगभग 4.6 अरब वर्ष पुराना है और आने वाले कई अरब वर्षों तक इसी तरह चमकता रहेगा। सूर्य के केंद्र (कोर) में तापमान लगभग 1.5 करोड़ डिग्री सेल्सियस होता है और दबाव अत्यधिक होता है।…