Scientists ,Inventions and Discoveries

Telescope
An optical instrument designed to make distant objects appear nearer, containing an arrangement of lenses, or of curved mirrors and lenses, by which rays of light are collected and focused and the resulting image magnified.

Penicillin

Penicillin (sometimes abbreviated PCN or pen) is a group of antibiotics derivedfrom Penicillium fungi, including penicillin G (intravenous use), penicillin V (oraluse), procaine penicillin, and benzathine penicillin (intramuscular use). Penicilin was invented by Alexander Fleming in 1928.

Wilhelm Roentgen or Röntgen made medical history by discovering what are now called x-rays. The discovery earned Röntgen much fame and it resulted in him being award a Nobel Prize.

Steam Engine

A steam engine is a heat engine that performs mechanical work using steam as its working fluid.Using boiling water to produce mechanical motion goes back over 2000 years, but early devices were not practical. The Spanish inventor Jerónimo de Ayanz y Beaumont patented in 1606 the first steam engine. In 1698 Thomas Savery patented a steam pump that used steam in direct contact with the water being pumped. Savery's steam pump used condensing steam to create a vacuum and draw water into a chamber, and then applied pressurized steam to further pump the water. Thomas Newcomen's atmospheric engine was the first commercial true steam engine using a piston, and was used in 1712 for pumping in a mine. James Watt invented the steam engine.

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Key Lessons from the Movie- ‘3 Idiots

Key Lesson from 3Idiot Movie Key Lessons from the Movie- ‘3 Idiots’: Every movie has a meaning, carrying a message. However, it depends upon the viewer to grab the message and apply the same in life. The bollywood blockbuster ‘3 Idiots’ is an inspiring story of three students Rancho, Farhan Qureshi and Raju Rastogi who have joined the Imperial College of Engineering. In brief, the five key lessons that we can draw from the movie can well be described below. Chase excellence, instead of success, and success will follow and run after you: Rancho, who is an orphaned boy, had got interest in engineering since his early childhood. He, right from the very beginning till the end, sticks to his conviction that it is not success in life but excellence that must be pursued with passion. His words, ‘make your passion, your profession’ sets the tone around which the plot of the movie is woven. Rancho pursues his goal with passion and hence emerges as the student of the...

5 Historic ISRO Missions That Redefined India’s Space Legacy

The Indian Space Research Organisation (ISRO) has transformed from a modest agency into a global space powerhouse. From discovering water on the Moon to reaching Mars in a single shot, these five missions represent the "Big Five" of Indian space exploration. 1. Chandrayaan-1 (2008): The Mission That Found Water Launched on October 22, 2008, Chandrayaan-1 was India's first step toward the Moon. While it was an orbiter mission, its impact was felt worldwide. The Breakthrough: It provided the first conclusive evidence of water molecules (H2O) and hydroxyl (OH) on the lunar surface. Legacy: This discovery shifted the global narrative of lunar exploration, turning the "dry" Moon into a potential base for future human colonies. 2. Mangalyaan (2013): First Attempt, Global Success The Mars Orbiter Mission (MOM) made India the first country in the world to reach Martian orbit on its very first attempt . The "Bahubali" of Efficiency: Costing on...

Uranium (यूरेनियम)

Uranium( यूरेनियम): Uranium: Uranium is a very heavy metal which can be used as an abundant source of concentrated energy. Many contemporary uses of uranium exploit its unique nuclear properties. Uranium-235 has the distinction of being the only naturally occurring fissile isotope. Uranium-238 is fissionable by fast neutrons, and is fertile, meaning it can be transmuted to fissile plutonium-239 in a nuclear reactor. Another fissile isotope, uranium-233, can be produced from natural thorium and is also important in nuclear technology. While uranium-238 has a small probability for spontaneous fission or even induced fission with fast neutrons, uranium-235 and to a lesser degree uranium-233 have a much higher fission cross-section for slow neutrons. In sufficient concentration, these isotopes maintain a sustained nuclear chain reaction. This generates the heat in nuclear power reactors, and produces the fissile material for nuclear weapons. Depleted uranium (238U) ...

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