Latest inventions in Science and Technology Tnpsc

Important Invention and Discovery in Physics

Here’s a table of significant inventions and discoveries in physics and their inventors/discoverers:

Invention/DiscoveryInventor/DiscovererYearSignificance
Laws of MotionSir Isaac Newton1687Laid the foundation of classical mechanics.
Universal Law of GravitationSir Isaac Newton1687Described the force of attraction between masses, a key principle of physics.
Electric BatteryAlessandro Volta1800First practical source of continuous electrical current.
Electromagnetic InductionMichael Faraday1831Demonstrated how electric current can be induced by changing magnetic fields.
Faraday’s Law of ElectromagnetismMichael Faraday1831Fundamental principle for electric generators and transformers.
Photoelectric EffectHeinrich Hertz1887Pioneered understanding of light’s particle-like properties, later explained by Einstein.
X-raysWilhelm Röntgen1895Discovered electromagnetic radiation useful in medical imaging.
Theory of RelativityAlbert Einstein1905 (Special), 1915 (General)Revolutionized understanding of space, time, and gravity.
Quantum MechanicsMax Planck1900Introduced the concept of energy quanta, forming the basis of quantum theory.
ElectronJ.J. Thomson1897Discovered the electron, identifying it as a fundamental particle.
RadioactivityHenri Becquerel, Marie Curie, Pierre Curie1896–1903Discovered spontaneous radiation from unstable nuclei, paving the way for nuclear physics.
Nuclear Model of AtomErnest Rutherford1911Proposed a central nucleus surrounded by orbiting electrons.
Uncertainty PrincipleWerner Heisenberg1927Described limitations in simultaneously measuring position and momentum in quantum systems.
Electromagnetic Wave TheoryJames Clerk Maxwell1865Unified electricity, magnetism, and light in the theory of electromagnetism.
SuperconductivityHeike Kamerlingh Onnes1911Discovered zero electrical resistance in materials at very low temperatures.
Higgs Boson (“God Particle”)Peter Higgs and others1964 (proposed), 2012 (confirmed)Explained the mechanism that gives particles their mass.
LaserTheodore Maiman (practical realization)1960Harnessed stimulated emission of light for a range of applications in science and technology.

Important Invention and Discovery in Chemistry

Here’s a table of significant inventions and discoveries in chemistry along with their contributors and significance:

Invention/DiscoveryInventor/DiscovererYearSignificance
Periodic TableDmitri Mendeleev1869Organized elements based on atomic weight, predicting the properties of undiscovered elements.
Discovery of OxygenJoseph Priestley, Carl Scheele1774Identified oxygen as a distinct element essential for combustion and respiration.
Atomic TheoryJohn Dalton1803Proposed that matter is composed of indivisible atoms, laying the foundation for modern chemistry.
Law of Conservation of MassAntoine Lavoisier1789Demonstrated that mass is neither created nor destroyed in chemical reactions.
Discovery of ElectronsJ.J. Thomson1897Identified the electron, introducing subatomic particles into atomic theory.
Synthesis of UreaFriedrich Wöhler1828First artificial synthesis of an organic compound, breaking the barrier between organic and inorganic chemistry.
Discovery of RadioactivityHenri Becquerel, Marie and Pierre Curie1896–1902Identified radioactive elements, leading to advances in nuclear chemistry and medicine.
Periodicity and Atomic NumbersHenry Moseley1913Established the modern periodic table based on atomic numbers rather than atomic mass.
Discovery of Noble GasesWilliam Ramsay1894–1898Identified a new group of inert gases, adding a new column to the periodic table.
Discovery of Benzene StructureFriedrich August Kekulé1865Proposed the cyclic structure of benzene, a cornerstone of organic chemistry.
Haber Process (Ammonia Synthesis)Fritz Haber, Carl Bosch1909–1913Enabled large-scale production of ammonia for fertilizers and explosives.
Discovery of IsotopesFrederick Soddy1913Explained variations of elements with the same atomic number but different masses.
Acid-Base TheorySvante Arrhenius1884Defined acids and bases in terms of hydrogen ions and hydroxide ions.
Avogadro’s LawAmedeo Avogadro1811Related the volume of gases to the number of molecules, forming the basis of molecular chemistry.
Discovery of PolymersHermann Staudinger1920Demonstrated that polymers are long chains of repeating units, crucial for materials science.
DNA Double Helix StructureJames Watson, Francis Crick, Rosalind Franklin1953Identified the structure of DNA, transforming biochemistry and molecular biology.
Discovery of ElectronegativityLinus Pauling1932Quantified an element’s tendency to attract electrons in chemical bonds.
Discovery of Sulfuric Acid ProductionJabir ibn Hayyan (early methods)8th CenturyDeveloped processes to produce sulfuric acid, a key industrial chemical.

This table highlights milestones in chemistry that have profoundly impacted science, industry, and human understanding of matter.

Important Invention and Discovery in Biology

Here’s a table of important inventions and discoveries in biology and their contributors along with their significance:

Invention/DiscoveryInventor/DiscovererYearSignificance
Cell TheoryMatthias Schleiden, Theodor Schwann, Rudolf Virchow1839–1855Established that all living organisms are made of cells, and cells are the basic unit of life.
Theory of Evolution by Natural SelectionCharles Darwin, Alfred Russel Wallace1859Introduced the idea that species evolve over time through natural selection.
Germ Theory of DiseaseLouis Pasteur, Robert Koch1857–1880Demonstrated that microorganisms cause disease, leading to advances in medicine and hygiene.
Discovery of InsulinFrederick Banting, Charles Best1921Discovered insulin, revolutionizing the treatment of diabetes.
Discovery of the Double Helix Structure of DNAJames Watson, Francis Crick, Rosalind Franklin1953Identified the structure of DNA, transforming genetics and molecular biology.
Microscope InventionZacharias Janssen, Antonie van Leeuwenhoek1590–1670Development of the microscope allowed for the observation of microorganisms and cells.
Vaccination (Smallpox)Edward Jenner1796Developed the first vaccine for smallpox, leading to the eventual eradication of the disease.
Antibiotics (Penicillin)Alexander Fleming1928Discovered penicillin, the first true antibiotic, revolutionizing the treatment of bacterial infections.
Plant Photosynthesis DiscoveryJan Ingenhousz, Joseph Priestley1770s–1779Demonstrated that plants produce oxygen through photosynthesis, a key process in life on Earth.
The Law of Inheritance (Mendel’s Laws)Gregor Mendel1865Discovered the basic principles of heredity, laying the foundation of genetics.
Cloning (Dolly the Sheep)Ian Wilmut, Keith Campbell1996Cloned the first mammal from an adult somatic cell, advancing the field of genetic research.
Human Genome ProjectInternational Research Team1990–2003Mapped the entire human genome, unlocking knowledge about genetics and disease.
Endosymbiotic TheoryLynn Margulis1967Proposed that mitochondria and chloroplasts originated as independent prokaryotes engulfed by ancestral eukaryotic cells.
The Blood CirculationWilliam Harvey1628Discovered the circulation of blood through the heart and body, reshaping human anatomy and physiology.
Discovery of the Cell NucleusRobert Brown1831Identified the nucleus within cells, contributing to understanding cellular function.
Biogenesis (Life from Life)Louis Pasteur1859Disproved the theory of spontaneous generation, establishing that life comes from pre-existing life.
Discovery of NeurotransmittersOtto Loewi1921Discovered neurotransmitters, leading to a greater understanding of nervous system function.
The Immune SystemÉlie Metchnikoff, Robert Koch1880s–1900sDeveloped the concept of the immune system and phagocytosis, critical for immunology.

This table summarizes key biological discoveries that have shaped our understanding of life, health, genetics, and evolution.

Important Invention and Discovery in Consumer Electrical and Electronics

Here’s a table of important inventions and discoveries in consumer electronics and electrical technologies and their inventors along with their significance:

Invention/DiscoveryInventor/DiscovererYearSignificance
Electric Light BulbThomas Edison1879Revolutionized lighting by providing a safer and more efficient alternative to gas lamps.
Alternating Current (AC)Nikola Tesla1887Developed alternating current for electrical transmission, replacing direct current for long-distance power.
TelegraphSamuel Morse1837Enabled long-distance communication through electrical signals, leading to the development of telecommunications.
RadioGuglielmo Marconi1895Developed the first practical radio transmission system, paving the way for wireless communication.
TelephoneAlexander Graham Bell1876Invented the telephone, transforming personal and business communication.
Vacuum TubeJohn Ambrose Fleming1904Key component for early electronics, amplifying electrical signals, leading to radio and early computers.
TransistorJohn Bardeen, Walter Brattain, William Shockley1947Revolutionized electronics by replacing vacuum tubes, enabling smaller and more efficient devices.
TelevisionPhilo Farnsworth, Charles Francis Jenkins1927Developed the electronic television, transforming entertainment and media consumption.
Compact Disc (CD)James Russell1965Invented the compact disc, revolutionizing the music and media industries with digital storage.
Microwave OvenPercy Spencer1945Developed the microwave oven, transforming food preparation with fast, convenient cooking.
Quartz ClockWarren Marrison and J.W. Horton1927Revolutionized timekeeping with highly accurate quartz crystals, widely used in electronics.
Color TelevisionJohn Logie Baird, Guillermo González Camarena1928-1940sCreated the color television system, enhancing visual media with color broadcasts.
Integrated Circuit (IC)Jack Kilby, Robert Noyce1958Pioneered the integrated circuit, leading to the miniaturization of electronic devices.
Personal ComputerCharles Babbage, Alan Turing1930s–1940sDeveloped early computational machines and theories, leading to the invention of personal computers.
Digital CameraSteven Sasson1975Invented the digital camera, revolutionizing photography by using digital sensors instead of film.
LED LightingNick Holonyak1962Invented the first visible-spectrum LED, leading to energy-efficient lighting solutions.
Lithium-ion BatteryJohn B. Goodenough, Stanley Whittingham, Akira Yoshino1980s–1990sDeveloped the lithium-ion battery, revolutionizing portable electronics and electric vehicles.
Solar PanelsAlbert Einstein (photoelectric effect)1905Theoretical and practical development of solar energy technology, revolutionizing renewable energy use.
Smart Home Devices (IoT)Various Innovators (Nest, Amazon, etc.)2000sDeveloped smart home technologies like thermostats, voice assistants, and security systems, advancing home automation.
Plasma TelevisionDonald Bitzer, H. Gene Slottow1964Developed the plasma display technology, a precursor to modern flat-panel televisions.

This table highlights major inventions and discoveries in consumer electronics and electrical technologies that have had a profound impact on daily life, business, and communication.

Important Invention and Discovery in Medical Field

Here’s a table of important inventions and discoveries in the medical field along with their inventors/discoverers and significance:

Invention/DiscoveryInventor/DiscovererYearSignificance
Germ Theory of DiseaseLouis Pasteur, Robert Koch1857–1880Proved that microorganisms cause disease, leading to the development of vaccines and antibiotics.
Vaccination (Smallpox)Edward Jenner1796Developed the first successful smallpox vaccine, leading to the eventual eradication of the disease.
Discovery of InsulinFrederick Banting, Charles Best1921Discovered insulin, revolutionizing the treatment of diabetes.
Penicillin (Antibiotic)Alexander Fleming1928Discovered penicillin, the first antibiotic, transforming the treatment of bacterial infections.
AnesthesiaWilliam Morton1846Introduced anesthesia in surgery, making operations painless and safer.
X-ray ImagingWilhelm Röntgen1895Discovered X-rays, revolutionizing diagnostic imaging in medicine.
Blood CirculationWilliam Harvey1628Discovered the circulation of blood, reshaping understanding of human anatomy and physiology.
The StethoscopeRené Laennec1816Invented the stethoscope, a key diagnostic tool for auscultating the heart and lungs.
The Development of VaccinesLouis Pasteur, Albert Calmette, Camille Guérin1885–1920sDeveloped vaccines for diseases like rabies and tuberculosis, advancing immunology.
Discovery of the Structure of DNAJames Watson, Francis Crick, Rosalind Franklin1953Identified the double-helix structure of DNA, transforming genetics and molecular biology.
MRI (Magnetic Resonance Imaging)Raymond Damadian, Paul Lauterbur, Peter Mansfield1970sDeveloped MRI technology, revolutionizing non-invasive imaging of soft tissues.
Discovery of VitaminsSir Frederick Gowland Hopkins, Christiaan Eijkman1912–1913Discovered essential vitamins and their role in preventing diseases like scurvy and rickets.
Development of Antibiotics (Sulfa Drugs)Gerhard Domagk1935Developed the first synthetic antibiotic, sulfonamide, which laid the foundation for antibiotic therapies.
Human Blood TypesKarl Landsteiner1900Discovered the ABO blood group system, crucial for safe blood transfusions.
The MicroscopeZacharias Janssen, Antonie van Leeuwenhoek1590s–1670sInvented and improved the microscope, enabling the study of microorganisms and cells.
Development of Oral ContraceptivesGregory Pincus, John Rock1960Developed the first oral contraceptive, transforming reproductive health.
The Cochlear ImplantWilliam House1957Developed the cochlear implant, restoring hearing in individuals with severe hearing loss.
The ECG (Electrocardiogram)Willem Einthoven1903Invented the electrocardiogram, allowing the measurement of the electrical activity of the heart.
The Artificial HeartPaul Winchell, Henry Heimlich1956Developed the first mechanical heart, contributing to advancements in heart surgery and transplant.
The Pill (Birth Control)Carl Djerassi1950sDeveloped the birth control pill, revolutionizing family planning and women’s health.
The Discovery of Human Germline Editing (CRISPR-Cas9)Jennifer Doudna, Emmanuelle Charpentier2012Revolutionized genetic research with the ability to edit DNA, opening new possibilities for treating genetic disorders.

This table highlights groundbreaking inventions and discoveries that have had profound effects on the medical field, improving diagnosis, treatment, prevention, and our understanding of human health.

Important Invention and Discovery in Diseases and Cure

Invention/DiscoveryInventor/DiscovererYearSignificance
Smallpox VaccineEdward Jenner1796Developed the first vaccine for smallpox, leading to its eventual eradication.
Discovery of Penicillin (Antibiotic)Alexander Fleming1928Discovered penicillin, the first antibiotic, revolutionizing the treatment of bacterial infections.
Polio VaccineJonas Salk1955Developed the polio vaccine, contributing to the near eradication of polio worldwide.
Insulin for DiabetesFrederick Banting, Charles Best1921Discovered insulin, providing a life-saving treatment for diabetes.
Treatment of Malaria (Chloroquine)Albert Calmette, Camille Guérin1920sDeveloped chloroquine, an effective treatment for malaria.
Tuberculosis Cure (Streptomycin)Selman Waksman1943Discovered streptomycin, the first effective antibiotic treatment for tuberculosis.
HIV/AIDS Antiretroviral TherapyVarious Researchers (e.g., David Ho, Robert Gallo)1990sDeveloped antiretroviral drugs to manage HIV/AIDS, transforming the disease from a death sentence to a manageable condition.
Discovery of the Germ Theory of DiseaseLouis Pasteur, Robert Koch1857–1880Proved that microorganisms cause diseases, leading to vaccines and antibiotics for various infections.
Malaria Vaccine (RTS,S/AS01)WHO & GlaxoSmithKline2015 (trial results)Developed the first malaria vaccine, a significant step toward controlling malaria globally.
Cure for Scurvy (Vitamin C)James Lind1747Discovered that vitamin C prevents scurvy, revolutionizing naval health.
Treatment for Hypertension (Beta Blockers)James Black, others1960sDeveloped beta-blockers, which revolutionized the treatment of high blood pressure.
Discovery of the Role of Germs in Infectious DiseaseLouis Pasteur, Robert Koch19th CenturyLed to the development of sterilization techniques and vaccines, reducing the spread of infectious diseases.
Vaccination for Hepatitis BBaruch Blumberg1967Discovered the hepatitis B virus and developed a vaccine, significantly reducing liver cancer rates.
Antibiotics for Syphilis (Penicillin)Alexander Fleming1928Discovered penicillin as the cure for syphilis, a major step in curing bacterial STDs.
Discovery of the Polio VirusKarl Landsteiner, others1908Discovered the polio virus, which led to the development of the polio vaccine.
Vaccine for Diphtheria, Tetanus, and PertussisEmil von Behring, othersLate 19th CenturyDeveloped vaccines for these deadly diseases, greatly reducing childhood mortality.
Cure for Tuberculosis (BCG Vaccine)Albert Calmette, Camille Guérin1921Developed the Bacillus Calmette-Guérin (BCG) vaccine, which is still used today to prevent tuberculosis.
Cure for Leprosy (Dapsone)Various Researchers1940sDiscovered dapsone, leading to the effective treatment of leprosy, reducing its global burden.
Discovery of the Cure for Typhoid FeverGeorge J. Crookshank1900sDeveloped effective treatments for typhoid fever, reducing mortality rates worldwide.
Human Genome Project (Genetic Understanding of Diseases)Various Researchers (e.g., Francis Collins, Craig Venter)2003Mapped the entire human genome, paving the way for genetic treatments and understanding of inherited diseases.
Treatment for Parkinson’s Disease (Levodopa)George Cotzias, others1960sDeveloped levodopa as the primary treatment for Parkinson’s disease, alleviating symptoms significantly.
Hepatitis C Cure (Direct-Acting Antivirals)Various Researchers (e.g., Gilead Sciences)2011sDeveloped direct-acting antiviral treatments for hepatitis C, offering a cure for the first time.
Chemotherapy for CancerPaul Ehrlich, othersEarly 20th CenturyDeveloped chemotherapy as a treatment for cancer, providing new hope for cancer patients.

This table outlines important inventions and discoveries that have directly impacted the treatment and understanding of diseases, providing cures or significant medical breakthroughs that have saved millions of lives globally.

Important Invention and Discovery in Transport

Here’s a table of important inventions and discoveries in transport along with their inventors/discoverers and significance:

Invention/DiscoveryInventor/DiscovererYearSignificance
Steam Engine (Locomotive)George Stephenson, Richard Trevithick1814–1825Revolutionized transportation by enabling the development of railways, facilitating fast and efficient land transport.
First Automobile (Gasoline-powered)Karl Benz1885–1886Invented the first practical automobile, changing personal transportation and leading to the automobile industry.
Airplane (Powered flight)Orville and Wilbur Wright1903Developed the first successful powered airplane, making air travel a reality and revolutionizing global transportation.
SteamshipRobert Fulton1807Developed the first commercially successful steamship, transforming waterborne travel and trade.
BicycleBaron Karl von Drais1817Invented the first practical bicycle, contributing to personal transport and recreational activities.
HelicopterIgor Sikorsky1939Developed the first successful helicopter, enabling vertical flight and expanding possibilities in rescue and transport.
Container Shipping (Standardized containers)Malcolm McLean1950sRevolutionized global trade by introducing standardized shipping containers, making cargo transport more efficient.
Jet EngineFrank Whittle, Hans von Ohain1930s–1940sDeveloped the jet engine, leading to the age of commercial air travel and faster military transport.
Internal Combustion EngineNikolaus Otto, Gottlieb Daimler, Karl Benz1870s–1880sInvented the internal combustion engine, powering cars, trucks, and airplanes, revolutionizing transport.
High-Speed Rail (Bullet Trains)Japan (Shinkansen)1964Introduced the Shinkansen, the first high-speed train, significantly reducing travel time between cities.
Spacecraft (First Human Spaceflight)Yuri Gagarin1961Made the first human spaceflight, advancing space exploration and the possibility of interplanetary transport.
MotorcycleGottlieb Daimler, Wilhelm Maybach1885Developed the first practical motorcycle, a faster and more personal mode of transport than a car.
Suspension BridgeIsambard Kingdom Brunel1859Built the first modern suspension bridge, advancing large-scale infrastructure projects, including transport.
Electric TrainWerner von Siemens1879Developed the first electric railway, laying the foundation for modern electric transport systems worldwide.
Magnetic Levitation (Maglev) TrainVarious Researchers (Japan, Germany)1980s–1990sDeveloped maglev technology for trains, allowing for frictionless high-speed travel.
The HovercraftChristopher Cockerell1950sInvented the hovercraft, allowing vehicles to travel over land and water, providing versatile transportation.
Commercial AirlinerBoeing (Model 707)1958Introduced the first commercial jet airliner, expanding air travel for passengers and cargo globally.
Transcontinental RailroadUnion Pacific, Central Pacific1869Connected the East and West coasts of the U.S., revolutionizing the transportation of goods and people across the continent.
Electric CarVarious Researchers (Nissan, Tesla, etc.)2000s–presentDeveloped electric cars, paving the way for sustainable, eco-friendly personal transportation.
SubmarineCornelius Drebbel, later improvements by John Philip Holland1620s–1878Developed the first practical submarine, leading to underwater military and exploration transport.
Concorde Supersonic JetAérospatiale, British Aircraft Corporation1969–2003Developed the Concorde, the first supersonic passenger jet, drastically reducing air travel time.

This table highlights key inventions and discoveries in the field of transport, showcasing the technological advancements that have dramatically reshaped how we move people and goods around the world.