# Wright State University Lake Campus/2016-1/Phy2400/log

This is the course Journal where I try to document what we do each day. It has this subpage where I keep stuff

## monday 1/11 Looked at first quiz)

* First quiz..interupted by music lesson

## 1/12 tue lab

* dentists in celina

## 1/13 Wed registration on Wikiversity

Show you your personal S (subspace) under the log (this course journal).
Study guide up to where we did prob 3 in first quiz in chapter 2 (definitions): 2.07 mph/sec.
Will do unit conversion on thursday.

## 1/14 Thursday finished registration

* Everybody should:
* Be registered with a a Template:EduV/enroll filled out on main course page.Y Done
* Have the link to the main course page on their user page. To do this, just copy [[Wright State University Lake Campus/2016-1/Phy2400]] onto your user page and check it to ensure that it works. Y Done
* Install visual editor from Wikiversity.
          Address bar:Preferences:Beta feature:Visual editorY Done
* Do a variation of the Fermi question on piano turners in NYC (together in class).
* Does anybody have any dinosaur piss inside them right now? (together in class).
* Find and insert image into your userspace.
** New tab open wikimedia commmons using google (commons is key)
** find random file and paste the entire title (address) file:xxxxxx.gif or jpeg
** paste into user page
** turn it into a link with: double square brackets and pipe with instructions.

### Homework

Propose a format for the organization of your '''.S''' log subpage.

## 1/18 tue lab spitwads and curve fitting

* Physics_and_Astronomy_Labs/Uniform_acceleration_tapping_basketball_with_spitwads Let's just look at the curve fitting question today. Instructor opened Excel and copy paste the spreadsheet. Found standard deviation.
* Did basketball-tennis ball energy exchange using Earth's gravity.

#### Important announcement

Tuesday's and Thursdays are lab days and I need to take attendance. Usually this will be in the form of a 1-page report on blank typing paper. Leave a 3/4 inch margin all around and do not include your real identity inside that space.
* At the very top (inside the 3/4 inch margin where it can be deleted): First last name and date.
* At the very bottom (also in the margin where it can be cut): Name of today's lab and real name.
* In the lower right hand corner, but outside the margins where it will be seen by viewers, you are strongly encouraged to write "I release to public domain - username" This way you or I can post to commons. I will not post handwritten diagrams without your permission.
* Within 24 hours you need to start a journal inside your log's .S personal subpage. Write a one sentence summary of every lab that you attend.
You need to follow the aforementioned instructions so that I can give you a good lab grade
* Class discussion: It would be easy for you to copy somebody else's lab report. How can I make this not sound so bad?
       Put this into your best prose in your personal subpage (i.e. your .S page). This is a high priority task.

## 1/20 Wed (lecture) PREPARE FOR TEST ONE WEEK FROM TODAY

* Can you all get to Wright State University Lake Campus/2016-1/Phy2400?
* Test 1 is one week from today. We will review during both labs Thursday and Tuesday.
* On Simple Arithemetic we only did the first 5 questions.

## 2/2 Tues

* Physics and Astronomy Labs/Static forces
* Physics and Astronomy Labs/Force table
* Physics and Astronomy Labs/Vernier force probe

## 2/4

* Hand sketch of three string problem to estimate T1 if theta_1 is 18 deg, theta_3 is 34 deg and T_3 os 24 N.
* Each group picks a problem from Physics equations/04-Dynamics: Force and Newton's Laws/Q:tensions/Testbank, solves it and puts it on the board.

## 2/23

* Practice polynomial integration on http://math.ly/calculus/polynomial-definite-integrals/pydbbzcnyb/
* Physics and Astronomy Labs/Hooke's law and Young's modulus. Which of the two graphs do you like best?

## 3/29 Solutions to questions 13, 14, 15

* Solutions to questions 13, 14, 15 on How things work college course/Waves (Physics Classroom) can be found here
* Video of pulse interference (skip to halfway point)
* Pulse interference on Physics Classroom
Musical harmony
* Why Bach sounds funny on the piano (talk)
* Ear training to hear the need for the equal tempered scale.
* What about the 5:7 resonance?
   * Two problems: 7 is a large prime number, and also 5/7≈10/7 (both close to the square root of two, or the logarithmic midpoint of the octave (factor of 2). As far as I know, nobody has investigated whether the proximity of two ratios of nearly the same order could cause this interval to sound harsh.
   * Download three versions of the Devils tritone: 10:7 (617.49 cents) - 7:5 (582.51 cents) - √2:1 (600 cents)
   * La danse macabre is one of many musical works that features this interval of dubious consonance.
   * Wikipedia:Scordatura describes the alternate tuning of the solo violinist that replaces one of the fifths by a fourth. See also Wikipedia:Danse_macabre_(Saint-Saëns) for this rendition on commons.
   * See Wiktionary:macabre for the definition and pronunciation of this word.

## 4/5 lab Tues: echo string

Do this quiz in class (solutions)

## 4/12/16 Scale model of solar system and transit of Venus

* Astronomy college course/Scale model of the solar system#Phy2400_General_Physics