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The 1871 periodic table constructed by Dmitri Mendeleev. The periodic table is one of the most potent icons in science, lying at the core of chemistry and embodying the most fundamental principles of the field. The history of chemistry represents a time span from ancient history to the present. By 1000 BC, civilizations used technologies that ...
Modern Standard Hindi (Hindi: आधुनिक मानक हिन्दी, romanized: Ādhunik Mānak Hindī), commonly referred to as Hindi (Hindi: हिन्दी, Hindī), is an Indo-Aryan language from the Indo-European language family spoken chiefly in North India, and serves as the lingua franca of the Hindi Belt region encompassing parts of northern, central, eastern, and ...
Nevertheless, Mein Kampf was a bestseller in Germany during the 1930s. [29] During Hitler's years in power, the book was in high demand in libraries and often reviewed and quoted in other publications. It was given free to every newlywed couple and every soldier fighting at the front. [26]
Chemistry is the scientific study of the properties and behavior of matter. It is a physical science within the natural sciences that studies the chemical elements that make up matter and compounds made of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during reactions with other substances.
Plasma is called the fourth state of matter after solid, liquid, and gas. [16] [17] [18] It is a state of matter in which an ionized substance becomes highly electrically conductive to the point that long-range electric and magnetic fields dominate its behaviour.
Electrons and a compact nucleus of protons and neutrons. Atoms are the basic particles of the chemical elements. An atom consists of a nucleus of protons and generally neutrons, surrounded by an electromagnetically bound swarm of electrons. The chemical elements are distinguished from each other by the number of protons that are in their atoms.
New Delhi (/ ˈ nj uː ˈ d ɛ. l i / ⓘ, Hindi: [ˈnəiː ˈdɪlːiː], ISO: Naī Dillī), is the capital of India and a part of the National Capital Territory of Delhi (NCT). New Delhi is the seat of all three branches of the Government of India, hosting the Rashtrapati Bhavan, Sansad Bhavan, and the Supreme Court.
The history of mathematics deals with the origin of discoveries in mathematics and the mathematical methods and notation of the past. Before the modern age and the worldwide spread of knowledge, written examples of new mathematical developments have come to light only in a few locales.