SCIENTISTS and CONTRIBUTIONS

Short Summary list of Scientists who contributed so much in Physical Science Development



THALES - Father of Science ; Elements of Nature
DEMOCRITUS - Atomic Theory
THOMAS EDISON - Electric Bulb
ALEXANDER FLEMING -Penicillin
FREDERICK BANTING - Insulin
ISAAC NEWTON - Law of Gravity ; Inertia ; Motion
ALBERT EINSTEIN - Theory of Relativity ; Photoelectric effect
MARIE CURIE - Radioactivity
WILHELM ROENTGEN - X-ray
ERNEST RUTHERFORD - Nucleus
EVANGELISTA TORICELLI - Barometer
FERDINAND VERBIEST - 1st automobile
CHARLES BABBAGE - 1st computer
EMILE BERLINER - Gramophone
ALEXANDER GRAHAM BELL - Telephone
RUDOLF DIESEL - Diesel engine
EDWIN LAND - 1st polaroid camera
KONRAD ZUSE - 1st program controlled computer
SAMUEL MORSE - single wire telegraph
GUGLIELMO MARCONI - Long distance radio transmission
JOHN BAIRD - TV system
WRIGHT BROTHERS - (Orville and Wilbur) 1st aircraft
CHANDERASEKHAR RAMAN - Raman effect
GALILEO GALILEI - Law of Gravity
JOHANNES KEPLER - 3 Laws of Planetary Motion
HIPPARCHUS - 365 length of the year
ARCHIMEDES - Hydrostatics ; Bouyancy ; Floating bodies
PTOLEMY - Book of Optics
COPERNICUS - Earth rotates on its axis
RENE DECARTES - Meditationes
MICHAEL FARADAY - Cathode rays
HENRY CAVENDISH - Hydrogen
LEUCIPPUS - opposer of the Divine universal
LOUIS PASTEUR - separation of mirror image molecules
JAMES MAXWELL - Kinetic Energy of Gases
EDWIN HUBBLE - Hubble's Law
PAUL DIRAC - Schrodinger's equation
MAX PLANCK - quantum mechanics
NIKOLA TESLA - Rotating magnetic field
ARISTOTLE - Metaphysics
LEONARDO DA VINCI - designed bridges etc.
NEILS BOHR - Bohr Theory of the Atom
JOSEPH THOMSON - spectrograph
WILLIAM RAMSAY - Helium
JULIUS ROBERT MAYER - Thermodynamics
HENRY BESSEMER - economical steel making
ROBERT BUNSEN - spectroscope ; Cesium and Rubidium
THOMAS GRAHAM - dialysis
JOHANN WOLFGANG DOBEREINER - relation of elements and atomic weight
AMEDEO AVOGADRO - same number of molecules in a constant temperature and pressure
WILLIAM HENRY - Henry's Law
ALESSANDRO VOLTA - battery using 2 types of metals
ANTOINE LAVOISIER - Oxygen
CHARLES AUGUSTIN DE COULOMB - Law of Force
THOMAS NEWCOMEN - steam engine
ROBERT BOYLE - Boyle's Law
BLAISE PASCAL - SI unit of pressure
Pythagoras - postulated that the Earth is spherical.
Ptolemy - wrote the book of Optics
Hypparchus - 365 days is the length of the year.
Aristotle
Archimedes - Floating bodies ; "Eureka"
Copernicus -
Galileo Galilei - Father of Physics ; Father of Science; Father of Modern Science; Astronomy
Decartes -
Isaac Newton - Laws of Motion; greatest influential scientists; prolonged gestation period; interested in Theology; dual Nature of Light; First principle of mechanics; gravitation; integral calculus
Michael Faraday - Electricity ; Telegraphics; electromagnetism and electromagnetism.
Albert Einstein - theory of relativity and mass energy equivalence, E = mc2; Theory of Gravity
Thales - Father of Science; Nature of elements ( fire, air, water, earth)
Democritus - Atomic theory.
Leusippus - developed the Theory of Atomism; Opposer of the Divine Universal...
Aristotle - student of Plato; Philosopher; big contribution in Physics
Aristarchus - silent scientist

Mechanical Vs. Electromagnetic Waves : Grade 7 Activity

Activity 3

Mechanical vs. Electromagnetic Waves

How do waves propagate?

Objective

In this activity, you will differentiate between mechanical waves and electromagnetic waves.

Materials

·         Findings from Activity 1

·         Chart of the electromagnetic spectrum

To see the whole activity, Click here: http://jmp.sh/v/ldJG9kKWerTNoFdsj7T7