Sep 2018
02-단위의 과학
17/09/18 11:24
2 단위의 과학
Why the metric system matters?
For the majority of recorded human history, units like the weight of a grain or the length of a hand weren’t exact and varied from place to place. Now, consistent measurements are such an integral part of our daily lives that it’s hard to appreciate what a major accomplishment for humanity they’ve been.
— Matt Anticole [TED-Ed] http://ed.ted.com/lessons/why-the-metric-system-matters-matt-anticole
• 강의록: 02-단위의 과학
Homework Assignment : 2. 단위의 과학 - 미리 공부하기(제출기한: 9월19일(수) 강의시간 전까지)
- 교재 ‘호기심의 과학’: 단위의 과학, pp 47-60("킬로그램 원기는 다이어트 중")과 관련 자료를 찾아서 공부하고, 아래 "Suggested Questions"를 참고하여 자기만의 질문을 만들어 "Comments (댓글)" 링크에 올려주기 바랍니다.
Useful Links and Further Reading:
- [TED-Ed] Why the metric system matters - Matt Anticole, https://www.youtube.com/watch?v=7bUVjJWA6Vw
- [TED-Ed] How to visualize one part per million - Kim Preshoff, https://www.youtube.com/watch?v=aa-m8a-jZ0k
- [TED-Ed] Light seconds, light years, light centuries: How to measure extreme distances - Yuan-Sen Ting, https://www.youtube.com/watch?v=Op3AYaJc0Xw
- [TED-Ed] What's the difference between accuracy and precision? - Matt Anticole, https://www.youtube.com/watch?v=hRAFPdDppzs
- How was Avogadro's number determined? - Scientific American, https://www.scientificamerican.com/article/how-was-avogadros-number/
- [YouTube] The Metre and Time, https://www.youtube.com/watch?v=dvVCNhWJvvo
- [YouTube] Metric & Standard Measurement Systems, https://www.youtube.com/watch?v=DQPQ_q59xyw
- [YouTube] Hewitt-Drew-it! PHYSICS 10. Unit Conversion, https://www.youtube.com/watch?v=4EhkFuVGmco
- [YouTube] Hewitt-Drew-it! PHYSICS 17.Mass/Weight, https://www.youtube.com/watch?v=ovZ-CkEBCiY
Comments
01-크기의 과학
05/09/18 11:40
1 크기의 과학
We can understand certain phenomena without actually doing the detailed calculations needed for a complete solution. Galileo Galilei first pointed out that similar objects can be related by scaling laws. These laws explain why an elephant cannot look like an enlarged mouse, why a giant human necessarily has certain problems, and why there are ultimate limits to the sizes of animals, plants and structures. This simple idea is called dimensional analysis, one of the physicist’s favorite trick. In this chapter, we will explore its stories and principles behind it.
• 강의록: 01-크기의 과학
Homework Assignment : (제출기한: 9월11일(화))
- 교재 ‘호기심의 과학’: 크기의 과학, pp 13-44 ("초소형 인간, 있을 수 있나?", "북극의 빙산은 왜 천천히 녹을까?")를 읽고, 아래 "Suggested Questions"를 참고하여 자기만의 질문을 만들어 "Comments (댓글)" 링크에 올려주기 바랍니다.
Useful Links and Further Reading:
- Galileo’s Square-Cube Law: http://dinosaurtheory.com/scaling.html
- “Of Mice and Elephants: A Matter of Scale” by George Johnson: http://hep.ucsb.edu/courses/ph6b_99/0111299sci-scaling.html
- “The Biology of B-Movie Monsters” by Michael C. LaBarbera: http://fathom.lib.uchicago.edu/2/21701757/
- Kleiber’s law: http://en.wikipedia.org/wiki/Kleiber’s_law
- Google Lecture Series: Scaling Laws In Biology And Other Complex Systems: http://www.youtube.com/watch?v=uEB4p9qbliE
- [YouTube] Hewitt-Drew-it! PHYSICS 55. Scaling 1, https://www.youtube.com/watch?v=DBOkLabPdj8
- [YouTube] Hewitt-Drew-it! PHYSICS 56. Scaling 2, https://www.youtube.com/watch?v=AXEG-IGNoew
- [YouTube] Hewitt-Drew-it! PHYSICS 57. Scaling 3, https://www.youtube.com/watch?v=ZLlRwpn3wgc
Suggested Questions
- 가장 효율적인 “왕” 개미의 모습은? 반대로 고래가 개미만하게 작아진다면 어떤 모습으로 변해야 생존할 수 있을까?
- 사람이 피 속의 “적혈구” 크기로 작아진다면 어떤 모양으로 변해야 할까?
- 자전거를 “적혈구” 크기로 작게 만든다면 어떻게 만들어야 할까?
- Suppose that muscular forces scale as the cross-sectional area of the muscles involved. Can we claim that the height of the jump is independent of the animal’s size? In other words, Can a flea can jump as high as a man or vice versa?
- The leg bones of one animal are twice as strong as those of another closely related animal of similar shape. (a) What would you expect to be the ratio of these animals’ heights? (b) What would you expect to be the ratio of their weights?
00-미시거시 강의개요
03/09/18 09:55
미시세계와 거시세계 — (2018학년도 2학기)
- 과목 번호: 046.005 (001)
- 과목명 및 학점: 미시세계와 거시세계, 3학점
- 담당 교수: 유재준 (56–508, 02-880–8934, jyu@snu.ac.kr)
- 과목 홈페이지: http://phya.snu.ac.kr/jyu/mima–18/
- 담당 조교: (TBA)
- 강의실 및 강의시간: 22동 412호, 월∙수 오후 2:00 - 3:15
Homework Assignment : (제출기한: 9월5일(수) 강의시간 전까지)
- 9월5일(수) 강의 시간에 논의할 수 있도록 평소에 자연현상에 대해 갖고 있던 의문을 하나 골라 정리해서 아래 "Comments (댓글)" 링크에 올려주기 바랍니다.
◦ Science is a dialogue between nature and mind. The way of science is to connect experience and ideas.
◦ 미시세계와 거시세계: 강의주제All good science is based on observable evidence. Science is always skeptical, always asking, ‘What is the evidence?’, ‘How do we know?’
◦ 강의 설계
- 과제제출 홈페이지: https://www.theclassprep.com/
◦ 능동학습의 순환구조 만들기
Image link: http://4mat4business.com/blog/tag/4mat-learning-model/