Tnpsc and Upsc Notes Pdf
SI Unit For having uniform measurements across the world, scientists, engineers, mathematicians, etc all over the world adopted a common set of units to express measurements. This system is called SI units or the International System of units. SI Units for common things Lenght – Metre Mass – KG (Kilogram) Time – Second Area of … Read more
Symbols for Aristotelian elements Keyboard Code (Alt+x) Alchemical Symbol Elements 1F700 🜀 QUINTESSENCE 1F704 🜄 WATER 1F701 🜁 AIR 1F702 🜂 FIRE 1F703 🜃 EARTH Symbols for Aristotelian elements Symbols for important solvents 1F705 🜅 AQUAFORTIS 1F706 🜆 AQUA REGIA 1F707 🜇 AQUA REGIA-2 1F708 🜈 AQUA VITAE = spiritus vin 1F709 🜉 AQUA VITAE-2 … Read more
Development of science and technology in India after independence Independent India has also witnessed tremendous growth in the sphere of science and technology. After 1947, Nehru became aware of the significant role of scientific research and technology in the progress of India. India’s first national laboratory, the National Physical Laboratory was established in 1947. It … Read more
Baking Powder Baking powder is a dry leavening agent used in baking to produce a light and fluffy texture. It is a mixture of sodium bicarbonate (NaHCO3), an acid, and a starch. The acid and starch help to keep the sodium bicarbonate from reacting until it is mixed with a liquid, such as water or … Read more
It is used daily in the home, school, everywhere, and even in our food. Uses of Nuclear Physics The application of Nuclear Physics is Power production and military defense. And apart from it has a wide range of applications in Medicine, Agriculture, Carbon dating in Archeology, and also in several industries. Agriculture Radio Isotope of … Read more
Helium-Neon Laser Helium-Neon Laser or He-Ne Laser is a gas laser. That uses Helium and Neon. It operates at a wavelength of 632.8 nm in the red part of the visible spectrum. And it is the first continuous wave (CW) laser constructed. Helium Neon Laser construction and working A continuous and strong laser beam can … Read more
Ruby laser construction and working The Ruby laser was developed in 1960 by T.Maiman. It is made of a single-crystal of ruby rod. The dimensions are 10cm in length and 4.4 cm in Radius (8.8 cm diameter). Ruby is nothing but a crystal of Aluminium oxide Al2O3. In this system, Al3+ ions are replaced by … Read more
Stem Cell Therapy Before seeing Stem Cell Therapy for the Knee, we need to what is stem cell therapy? This therapy uses stem cells to treat a medical condition (disease). Earlier there was only Hematopoietic stem cell transplantation available, it is usually taken from bone marrow transplantation. Now several types of research are being carried … Read more
Valencies of all 118 elements 118 elements with symbols and valencies Pdf download No SYMBOL ELEMENT VALENCE 1 H Hydrogen 1 0 -1 2 He Helium 0 … Read more
UY Scuti vs Sun Uy Scuti vs Sun is the most discussed topic in recent years. So we try to answer all the possible comparisons and questions arising out of it. First, we want to know What is Uy Scuti? It is a supergiant star that is present in the constellation Scutum. It is currently … Read more