Concept "2" Classes

15/04/2026

"2"Classes by

29/12/2025

Celebrating my 9th year on Facebook. Thank you for your continuing support. I could never have made it without you. 🙏🤗🎉

29/12/2025

Scientist Name
Invention and Discovery

1.Antoine Lavoisier
Conservation of mass, modern system of chemical nomenclature

2.Dmitri Mendeleev
Periodic table of elements

3.Marie Curie
Discovery of polonium and radium, contributions to the understanding of radioactivity

4.Robert Boyle
Boyle's law, foundational work in the development of the gas laws and kinetic theory of gases

5.Linus Pauling
Nature of the chemical bond, research on the structure of proteins

6.Gilbert N. Lewis
Covalent bond concept, development of Lewis dot structure to represent molecular bonding.

7.Friedrich August Kekulé
Formulation of the cyclic structure of benzene

8.Ilya Prigogine
Work on dissipative structures and nonequilibrium thermodynamics

9.Gilbert Stork
Contributions to organic synthesis, development of synthetic methodologies

10.Ahmed Zewail
Femto-chemistry, studying chemical reactions on extremely short timescales using ultrashort laser pulses.

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28/03/2025

★Father of Biology: *Aristotle*
★Father of Physics: *Albert Einstein*
★Father of Chemistry: *Jabir Bin Hayan*
★Father of Statistics: *Ronald Fisher*
★Father of Zoology: *Aristotle*
★Father of History: *Herodotus*
★Father of Microbiology: *Louis Pasteur*
★Father of Botany: *Theophrastus*
★Father of Algebra: *Muhammad ibn Musa al-Khwarizmi*
★Father of Blood groups: *Landsteiner*
★Father of Electricity: *Benjamin Franklin*
★Father of Trigonometry: *Hipparchus*
★Father of Geometry: *Euclid*
★Father of Modern Chemistry: *Antoine Lavoisier*
★Father of Robotics: *Engelberger*
★Father of Electronics: *Michael Faraday*
★Father of Internet: *Vinton Cerf*
★Father of Economics: *Adam Smith*
★Father of Video game: *Ralph Baer*
★Father of Architecture: *Louis Henry Sullivan*
★Father of Genetics: *Gregor Johann Mendel*
★Father of Nanotechnology: *Heinrich Rohrer*
★Father of C language: *Dennis Ritchie*
★Father of World Wide Web: *Tim Berners-Lee*
★Father of Search engine: *Alan Emtage*
★Father of Periodic table: *Dmitri Mendeleev*
★Father of Taxonomy: *Carolus Linnaeus*
★Father of Surgery (early): *Sushruta*
★Father of Mathematics: *Archimedes*
★Father of Medicine: *Hippocrates*
★Father of Homeopathy: *Samuel Hahnemann*...!
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06/02/2025

Concept "2" Classes by Er Dawood Khan
Er Dawood Sir Page Er Dawood Sir Group

by

15/07/2024

07/04/2024

Daily use sentence....

07/04/2024

Concept "2" Classes by Er Dawood Sir Page

15/03/2024