- The Periodic Table: The idea of arranging the elements known to man was brought up to the public when Dmitry Mendeleev proposed the periodic law in 1869. Dmitry Mendeleev figured out a pattern in the arrangement of elements in the proposed periodic table. It was seen that the elements arranged on the basis of atomic weights can be formed into groups displaying similar properties. Due to this, he was able to predict unknown compounds and find discrepancies in atomic weights. Henry Moseley in 1913 then showed how the table can be made more accurate using atomic number instead of atomic weight.
- Evolution: In 1859, Charles Darwin put forth the theory of evolution which changed the way we assumed our origin. He showed how every species evolve over time. This ‘so called’ evolution is basically random changes in the DNA which can either help the species adapt to a harsh environment or could make them extinct.
- Theory of Relativity: In 1905, Albert Einstein published the foundation of modern science, the theory of relativity. In his complicated theory, he basically mentioned how the laws of physics are the same for all non-accelerating observers, and he showed that the speed of light in a vacuum is the same no matter the speed at which an observer travels.
- The Big Bang Theory: We have all heard how the beginning of the universe started from the Big Bang. Georges Lemaître proposed the theory in 1927 of how the universe expanded from a tiny dot in space to the stage we are at now.
- Quantum Theory: The Nobel Prize winner Niels Bohr devised the Quantum Theory during his research on the structure of an atom in 1922. He is also known for his contributions towards the atomic bomb even though he promoted the use of atomic energy for peaceful purposes.
Thus, we have seen a few discoveries which have paved the way to how we perceive the world around us. To know more fun facts on chemistry, check out this YouTube channel-