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By:	
  Katie	
  Whilden	
  #21	
  
Table	
  of	
  Contents	
  


! 1.	
  Aristotle’s	
  Free	
  Fall	
  
! 2.	
  Aristotle’s	
  Flotation	
  
! 3.	
  The	
  Telescope	
  
! 4.	
  The	
  Thermometer	
  
! 5.	
  The	
  Pendulum	
  
! 6.	
  	
  Pictures	
  
Aristotle’s	
  Free	
  Fall	
  


! The	
  great	
  Aristotle	
  got	
  some	
  of	
  his	
  theories	
  incorrect,	
  but	
  
 most	
  of	
  them	
  were	
  right,	
  and	
  he	
  changed	
  the	
  world.	
  
! Aristotle	
  said	
  that	
  heavier	
  objects	
  fell	
  faster	
  than	
  lighter	
  
 objects.	
  Galileo	
  tested	
  it,	
  and	
  discovered	
  that	
  Aristotle	
  was	
  
 wrong.	
  Gravity	
  effects	
  everything	
  the	
  same.	
  
! Because	
  of	
  our	
  greater	
  understanding	
  of	
  gravity,	
  we	
  will	
  be	
  
 able	
  to	
  discover	
  more	
  things	
  with	
  our	
  knowledge.	
  We	
  have	
  
 traveled	
  to	
  the	
  moon	
  and	
  back,	
  and	
  perhaps	
  may	
  go	
  even	
  
 further	
  next	
  time.	
  Here’s	
  a	
  video:	
  
Aristotle’s	
  Free	
  Fall	
  
Aristotle’s	
  Flotation	
  


! Aristotle	
  said	
  that	
  shape	
  alone	
  effects	
  whether	
  something	
  
 floats.	
  To	
  float,	
  an	
  object	
  must	
  be	
  thin,	
  flat	
  and	
  smooth,	
  or	
  a	
  
 smooth	
  sphere.	
  
! Galileo	
  tested	
  this	
  theory.	
  He	
  said	
  that	
  an	
  object	
  must	
  be	
  
 less	
  dense	
  than	
  water	
  to	
  float,	
  and	
  he	
  was	
  right.	
  
! Because	
  Galileo	
  did	
  this,	
  we	
  are	
  now	
  able	
  to	
  make	
  floating	
  
 pool	
  toys	
  and	
  boats.	
  Columbus's	
  and	
  Cook’s	
  boats	
  were	
  
 made	
  of	
  wood.	
  Wood	
  floats.	
  Their	
  discovery	
  changed	
  the	
  
 world,	
  and	
  Galileo	
  secretly	
  helped	
  them	
  to	
  victory.	
  
Aristotle’s	
  Floatation	
  
The	
  Telescope	
  


! In	
  1609	
  a	
  man	
  named	
  Hans	
  Lippershey	
  invented	
  the	
  telescope.	
  It	
  
 could	
  see	
  objects	
  that	
  appeared	
  to	
  be	
  a	
  few	
  steps	
  away,	
  and	
  the	
  
 image	
  was	
  up-­‐side-­‐down.	
  
! Galileo	
  decided	
  he	
  could	
  improve	
  the	
  telescope,	
  and	
  he	
  did.	
  His	
  
 was	
  much	
  more	
  powerful,	
  and	
  the	
  picture	
  was	
  not	
  up-­‐side-­‐down.	
  
! With	
  the	
  telescope,	
  people	
  could	
  know	
  if	
  an	
  army	
  was	
  attacking,	
  
 or	
  a	
  rock	
  was	
  in	
  front	
  of	
  a	
  ship,	
  or,	
  like	
  Galileo,	
  you	
  could	
  see	
  the	
  
 stars	
  and	
  the	
  planets.	
  We	
  went	
  to	
  the	
  moon	
  because	
  we	
  saw	
  it	
  in	
  
 Galileo’s	
  telescope	
  and	
  got	
  curious.	
  He	
  changed	
  the	
  world.	
  
The	
  Telescope	
  
The	
  Thermometer	
  


! People	
  needed	
  a	
  way	
  to	
  tell	
  the	
  temperature	
  outside	
  or	
  inside,	
  
 and	
  Galileo	
  was	
  the	
  man	
  for	
  the	
  job.	
  
! Galileo	
  was	
  taking	
  medical	
  school	
  at	
  the	
  University	
  of	
  Pisa.	
  His	
  
 first	
  invention	
  was	
  the	
  thermometer.	
  
! People	
  wanted	
  to	
  know	
  how	
  cold	
  or	
  hot	
  it	
  was,	
  so	
  the	
  
 thermometer	
  was	
  created.	
  It	
  changed	
  the	
  world	
  because	
  you	
  may	
  
 not	
  know	
  if	
  it’s	
  cold	
  enough	
  for	
  a	
  jacket,	
  and	
  then	
  you	
  get	
  sick,	
  
 and	
  you	
  could	
  die	
  in	
  the	
  old	
  days,	
  so	
  one	
  of	
  Galileo’s	
  discoveries	
  
 once	
  again	
  saved	
  people’s	
  lives,	
  and	
  an	
  important	
  person,	
  such	
  as	
  
 Columbus,	
  could	
  have	
  get	
  sick	
  and	
  die	
  and	
  we	
  would	
  still	
  think	
  the	
  
 world	
  was	
  flat.	
  
The	
  Thermometer	
  
The	
  Pendulum	
  


! Doctors	
  needed	
  a	
  better	
  way	
  to	
  tell	
  for	
  a	
  person’s	
  pulse.	
  
 Clocks	
  were	
  to	
  unreliable	
  and	
  incorrect.	
  
! Galileo	
  saw	
  a	
  regularly	
  swinging	
  lamp	
  at	
  the	
  church	
  one	
  
 Sunday.	
  He	
  measured	
  the	
  swings	
  with	
  his	
  pulse.	
  He	
  began	
  
 Pendulum	
  experimenting.	
  
! 	
  Clockmakers	
  could	
  make	
  accurate	
  clocks	
  so	
  people	
  would	
  
 know	
  when	
  something	
  started	
  or	
  ended	
  or	
  how	
  long	
  
 something	
  took.	
  Doctors	
  made	
  a	
  device	
  called	
  a	
  pulsilogia,	
  
 which	
  measures	
  a	
  patient’s	
  pulse.	
  Once	
  again,	
  one	
  of	
  
 Galileo’s	
  discoveries	
  saved	
  people’s	
  lives.	
  
The	
  Pendulum	
  
By:	
  Katie	
  Whilden	
  #21	
  

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How galileo galilei changed the world

  • 2. Table  of  Contents   ! 1.  Aristotle’s  Free  Fall   ! 2.  Aristotle’s  Flotation   ! 3.  The  Telescope   ! 4.  The  Thermometer   ! 5.  The  Pendulum   ! 6.    Pictures  
  • 3. Aristotle’s  Free  Fall   ! The  great  Aristotle  got  some  of  his  theories  incorrect,  but   most  of  them  were  right,  and  he  changed  the  world.   ! Aristotle  said  that  heavier  objects  fell  faster  than  lighter   objects.  Galileo  tested  it,  and  discovered  that  Aristotle  was   wrong.  Gravity  effects  everything  the  same.   ! Because  of  our  greater  understanding  of  gravity,  we  will  be   able  to  discover  more  things  with  our  knowledge.  We  have   traveled  to  the  moon  and  back,  and  perhaps  may  go  even   further  next  time.  Here’s  a  video:  
  • 5. Aristotle’s  Flotation   ! Aristotle  said  that  shape  alone  effects  whether  something   floats.  To  float,  an  object  must  be  thin,  flat  and  smooth,  or  a   smooth  sphere.   ! Galileo  tested  this  theory.  He  said  that  an  object  must  be   less  dense  than  water  to  float,  and  he  was  right.   ! Because  Galileo  did  this,  we  are  now  able  to  make  floating   pool  toys  and  boats.  Columbus's  and  Cook’s  boats  were   made  of  wood.  Wood  floats.  Their  discovery  changed  the   world,  and  Galileo  secretly  helped  them  to  victory.  
  • 7. The  Telescope   ! In  1609  a  man  named  Hans  Lippershey  invented  the  telescope.  It   could  see  objects  that  appeared  to  be  a  few  steps  away,  and  the   image  was  up-­‐side-­‐down.   ! Galileo  decided  he  could  improve  the  telescope,  and  he  did.  His   was  much  more  powerful,  and  the  picture  was  not  up-­‐side-­‐down.   ! With  the  telescope,  people  could  know  if  an  army  was  attacking,   or  a  rock  was  in  front  of  a  ship,  or,  like  Galileo,  you  could  see  the   stars  and  the  planets.  We  went  to  the  moon  because  we  saw  it  in   Galileo’s  telescope  and  got  curious.  He  changed  the  world.  
  • 9. The  Thermometer   ! People  needed  a  way  to  tell  the  temperature  outside  or  inside,   and  Galileo  was  the  man  for  the  job.   ! Galileo  was  taking  medical  school  at  the  University  of  Pisa.  His   first  invention  was  the  thermometer.   ! People  wanted  to  know  how  cold  or  hot  it  was,  so  the   thermometer  was  created.  It  changed  the  world  because  you  may   not  know  if  it’s  cold  enough  for  a  jacket,  and  then  you  get  sick,   and  you  could  die  in  the  old  days,  so  one  of  Galileo’s  discoveries   once  again  saved  people’s  lives,  and  an  important  person,  such  as   Columbus,  could  have  get  sick  and  die  and  we  would  still  think  the   world  was  flat.  
  • 11. The  Pendulum   ! Doctors  needed  a  better  way  to  tell  for  a  person’s  pulse.   Clocks  were  to  unreliable  and  incorrect.   ! Galileo  saw  a  regularly  swinging  lamp  at  the  church  one   Sunday.  He  measured  the  swings  with  his  pulse.  He  began   Pendulum  experimenting.   !   Clockmakers  could  make  accurate  clocks  so  people  would   know  when  something  started  or  ended  or  how  long   something  took.  Doctors  made  a  device  called  a  pulsilogia,   which  measures  a  patient’s  pulse.  Once  again,  one  of   Galileo’s  discoveries  saved  people’s  lives.