Class Notes (974,042)
CA (574,311)
UTSG (48,013)
HPS211H1 (45)
Lecture 2

HPS211H1 Lecture 2: LECTURE2

by OneClass828974 , Spring 2016
4 Pages
Spring 2016

History and Philosophy of Science and Technology
Course Code

This preview shows page 1. Sign up to view the full 4 pages of the document.
 ! "#$#!%& $'#$'&()'!!$'$)!* &+'"#$#$
,#!# !-#'!"!$'$%*! $$$+-%# !-
#$#".*!#$!$/$$+-% !-$#- /'!!$'$"
0&-$,,*!$#1#"$+&2 3$#)-$-$#$!1#&2 3')"
4$5!()-!$!, +  %, $#',,+%,'!")+ #6$#
&$*!-$!$#!$,$$$7%$!##$!$ ',*&"8)
',,+ #6$#:
,! ',$!$+%
 ! "#'!$# !$!$#$'!"
!1#()7,$!$*!-1$%*!-,$!")& $ '$$! -,$!-%
'!"8)& $ '$,-,$!$'!'!"
4$5!()4$ %, $"),! ''!$&$1'#"8)$#!, $"
() # ,##$!$ ',*&3%!$! $,0,#$-!'02',
)  $!#$#&%!1- $!-:
 #$!1!*!-%$>$!%*!().%!$ !$!,#!$'$
%*!-$#+&")&2 -$$$$!,!!-#1#"
#,-+',$!&2 -%#,-#%$!$$!1#,#&2 $!$>$$+
-%#&$-#%$3$$+!# *!,,#,%*!)"! !$!$!&2 
,,-%$$!$#&$0#$# $!!&!%*!"
,!##,4#!+'!$0! 5-$%#+$!1#,+' $!!
##+'$!1!"$%-$#"?$!1&'+' $!!-
#-0 $!!,#$$#!%*!"6'!7,$!#$ $'#$#
() $!&$,* $##'!$!-#- 

Loved by over 2.2 million students

Over 90% improved by at least one letter grade.

Leah — University of Toronto

OneClass has been such a huge help in my studies at UofT especially since I am a transfer student. OneClass is the study buddy I never had before and definitely gives me the extra push to get from a B to an A!

Leah — University of Toronto
Saarim — University of Michigan

Balancing social life With academics can be difficult, that is why I'm so glad that OneClass is out there where I can find the top notes for all of my classes. Now I can be the all-star student I want to be.

Saarim — University of Michigan
Jenna — University of Wisconsin

As a college student living on a college budget, I love how easy it is to earn gift cards just by submitting my notes.

Jenna — University of Wisconsin
Anne — University of California

OneClass has allowed me to catch up with my most difficult course! #lifesaver

Anne — University of California
LECTURE2: THE SCIENTIFIC REVOLUTION CONCEPTS • Aristotle’s world view- Geocentric ie. the earth doesn’t move because that would be 1) unnatural 2) noticed by us. The earth’s a sphere in the center of the universe. All natural motion is directed towards or away from the center of the earth. Motion that is not towards/away from center of earth is forced/unnatural. Also, bodies fall proportional to their weight. Heavy objects (earth) fall faster than lighter objects (us). Weaknesses- 1) deferents and epicycles complicated the supposedly simple universe. 2)Tycho Brahe’s observation of a new star with no stellar parallax meant the heavens are corruptible. 3) Aristotle’s arguments had flaws. Supporters- Tycho Brahe? • Copernicus’s planetary model- Heliocentric. The sun is at the center and earth revolves around it. Strengths- 1) Explanation for retrograde motion of planets. 2) Able to calculate distance of planets from Sun. 3) Able to calculate period of planets around sun. Weaknesses- 1) Was too complicated. 2) Copernicus unable to argue with Aristotle. 3) Earth not special. Just another planet. 4) No observable proof of earth’s motion. Supporters- Galileo, Kepler • Galileo’s arguments against Aristotle- 1) Used his telescope to show heavens are corruptible (moon landscape, phases of venus, jupiter’s moons, earth illuminated moon’s shadows, sun is spotted, new stars exist) 2) How can the earth be moving if we can’t feel it? G’s changes to notion of matter and motion- 1) Movement or rest at constant speed is the natural motion for earthly bodies. 2) Objects fall at a rate independent of their weight. Ship I- If you drop an object from the top of the mast on a sailing ship the object will land a little away from the base of the mast (away in the direction opposite to ship’s motion). Since on land an object dropped from a tower lands at the base, the earth cannot be in motion. G responds with Ship II- When you’re in a lower, windowless deck of a smoothly sailing ship you cannot tell whether you’re sailing or not. Same for earth. It’s ‘sailing’ but you cannot feel it => RELATIVITY! Therefore, Aristotle cannot disprove that earth is in motion. But G didn’t explain what causes the earth to move. • Kepler’s Laws- 1) Planet’s orbits are elliptical with the sun at one of the foci 2) Moving in their orbits, planets sweep out equal area in equal intervals of time 3) The period of a planet in orbit is related to its average distance from the sun. • Natural motio
More Less
Unlock Document

Only page 1 are available for preview. Some parts have been intentionally blurred.

Unlock Document
You're Reading a Preview

Unlock to view full version

Unlock Document

You've reached the limit of 4 previews this month

Create an account for unlimited previews.

Already have an account?

Log In


Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.