4. FAMILY
BIRTH DAY : 15 FEBRUARY 1564
BIRTH PLACE : PISA ,
ITALY
FATHER : VINCENZO
GALILEI
MOTHER : GIULIA
“ FATHEROF MODERNOBSERVATIONAL ASTRONOMY”
5. EDUCATION
PUBLIC SCHOOL , PISA (1569-1574)
FATHER WANTED HIM TO STUDY MEDICINE
AT THE AGE OF 11 ,GOT SENT OFF TO A JESUIT MONASTERY
AT THE AGE 15 , WANTED TO BECOME A MONK , BUT
FATHER DISAGREED SO HE TOOK HIM OUT OF THE
MONASTERY
AT THE AGE 17 , ENTERED PISA UNIVERSITY TO STUDY
MEDICINE
“ FATHEROF MODERNPHYSICS”
8. THERMOMETER
IN 1593 GALILEO INVENT
THERMOMETER
FIRST THERMOMETER IN
THE WORLD
PEOPLE NEEDED A WAY TO
TELL THE TEMPERATURE INSIDE
OR OUTSIDE
9. GALILEO’S FIRST INVENTION WAS
THE THERMOMETER
OBJECTS IN THE SEALED GLASS
CHANGE THEIR POSITION
DEPENDING ON TEMPERATURE
BUILT BECAUSE THERE
WERE NOTHING THAT COULD
TELL THE TEMPERATURE
10. COMPASS
INVENTED AND IMPROVED A GEOMETRIC AND
MILITARY COMPASS
IN 1597 , HE BUILT A COMPASS
USED FOR AIMING
CANNONBALLS
IT WAS ALSO ADAPTED FOR
CIVILIAN USE IN LAND SURVEYING
CREATED TO HELP HIS STUDENTS LEARN
CAN SOLVE ANY MATHEMATICAL AND GEOMETRICAL QUESTIONS
11. TELESCOPE
WHO INVENTED TELESCOPE ?
THE TERRESTRIAL VERSION OF TELESCOPE WAS
FIRST INVENTED IN NETHERLANDS
BY THE SCIENTISTS HANS LIPPERSHEY ,
ZACHARIAS JANSSEN AND JACOB METIUS
then , What were the contributions
of Galileo with the Telescope ?
12. TELESCOPE
TELESCOPE (GREEK) MEANS “ FAR SEEING”
THOUGH GALILEO DIDIN’T INVENT THE
TELESCOPE, HE IMPROVED UPON IT
IN 1609 , GALILEO INVENTED HIS FIRST
TELESCOPE
HE IMPROVED UPON THE PREVIOUS
TERRESTRIAL TELESCOPES IN 1609
FIRST TELESCOPE THAT POINT TOWARDS
THE NIGHT SKY Galileo’s telescope
13. GALILEO’S TELESCOPEconsists with
ONE - AND – A HALF INCH LENS
FEW FEET LONG SIMPLE WOODEN TUBES
MAGNIFIES 3 TIMES MORE THAN THE PREVIOS TELESCOPE .
LATER GALILEO’S TELESCOPE MAGNIFIES 20 TIMES
WITH THIS ,
GALILEO SEE THE
THE MOON , 4
SATELLITE
SUPERNOVA ,
THE PHASES
OF VENUS
AND SUNSPOTS
15. PENDULAM CLOCK
NEAR THE YEAR 1641 ,GALILEO GAVE THE IDEA ABOUT
PENDULAM CLOCK
IN 1602 ,HE MADE AN IMPORTANT DISCOVERY,
THAT IS , THE TIME PERIOD OF PENDULAM DOES
NOT DEPEND ON THE ARC OF THE SWING
DISCOVERED THE THEORY OF ISOCHRONISM
CLOCK WITH WEIGHT TO KEEPS ITS TIMING
ACTUALLY CHRISTIAN HYGENS MADE THE FIRST
PENDULAM CLOCK, A YEAR AFTER GALILEO’S
DEATH
17. DISCOVERIES
1.MAPPING THE MOON
MOON’S SURFACE WAS NOT A SMOOTH , POLISHED
SPHERE BUT WAS SCARRED BY CRATERS AND
MOUNTAINS
PHASES OF MOON SURFACE OF MOON
18. 2. THE PHASES OF VENUS
IT IS THE CHANGING SIZES AND SHAPES OR
PHASES OF VENUS
BY OBSERVING THIS CHANGES GALILEO
PROVES THAT , VENUS IS ORBITING AROUND THE
SUN , NOT THE EARTH
IF VENUS ORBITED THE SUN , THEN IT DIDIN’T
ORBIT EARTH , AND THUS THE GEOCENTRIC
MODEL WAS WRONG
20. 3. GALILEAN MOONS – FOUR LARGEST SATELLITE OF
JUPITAR
these moons are so called because , this satellites
are first observed by GALILEO
21. 4. OBSERVATION AND ANALYSIS OF
SUNSPOTS
Sunspots are the small dark spots
on the surface of sun
22. 5. GLIMPSED THE RINGS OF SATURN
RINGS OF SATURN ARE GLIMPSED
23. GALILEO’S ASTRONOMICAL
OBSERVATIONS
PROVED THAT EARTH WAS NOT THE CENTRE
OF UNIVERSE
MILKY WAY WAS MADE UP OF MULTITUDES
OF INDIVIDUAL STARS
SWEPT AWAY THE OLD EARTH CENTERED
VIEW OF THE UNIVERSE
PLANETS ARE NOT THE DOTS OF LIGHT. THEY
ARE PHYSICAL BODIES LIKE EARTH
THESE ARE MADE US TO KNOW MORE ABOUT THE SOLAR
SYSTEM , MAKING SPACE TRAVEL POSSIBLE. IT HAS HELPED SCIENTISTS
TODAY , TO TRY AND FIND PLANETS THAT COULD SUSTAIN LIFE
24. 5. LAW OF FALLING BODIES
-”GRAVITY”
LAW STATES THAT “OBJECTS OF DIFFERENT WEIGHTS
WILL FALL AT THE SAME SPEED”
DISPROVED ARISTOTLE’S THEORY
SPEED OF FREELY FALLING BODY TOWARDS
EARTH DOES NOT DEPEND ON THE MASS OF
THE OBJECT
AN OBJECT IS IN FREE FALL, IF THE ONLY
FORCE ACTING ON IT IS GRAVITY
ACCELARATION DUE TO GRAVITY
26. QUOTES
“TWO TRUTHS CANNOT CONTRADICT
ONE ANOTHER”
“MATHEMATICS IS THE ALPHABET
WITH WHICH GOD HAS WRITTEN THE
UNIVERSE”
“WE CANNOT TEACH PEOPLE
ANYTHING; WE CAN ONLY HELP THEM
DISCOVER IT WITHIN THEMSELVES’
“I HAD NEVER MET A MAN SO
IGNORANT THAT I COULDN’T LEARN