Essay 6 (posted a week early)

Hi everyone,

Here’s the statement of the Essay 6 question, given a week earlier than scheduled, to help you plan the final three weeks of your semester better.

Essay 6: bullsh!t

This final essay is worth 8% of your final grade and is due by 2:10pm on Wednesday April 3rd. It is therefore in your interest to hand it in, even if you have to take a lateness penalty. You must inform me if you plan to hand in Essay 6 late, because I have a VERY tight turnaround deadline for the final grades after classes finish. I will not be able to accept any work turned in after 2:10pm on Wednesday April 10th.

Choose an example of bullsh!t related to modern physics. Use (a) your new BS detection skills  and (b) your two-semester knowledge of physics to debunk the bullsh!t. Write 6-7 pages.

All students must get their topic approved by me two Saturdays before the due date (March 23rd) at the latest. This rule exists solely for your protection, to make sure you don’t waste time on blind alleys.

Cheers,
Prof. P.

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Reminder about question topics for Test

Hi everyone,

If you haven’t started studying for our 60-minute 15% Spring Test on March 20th, it is time to start right now. Don’t forget to condense your notes onto your 2-sided Aid Sheet.

The Test questions will be divided up by topics as follows (as indicated on both practice tests posted on this site earlier):-

  1. Unification and Symmetry (week 10 “Clash of the 20th Century Titans”, some of week 11 “Unification and String Theory”, week 14 “Supersymmetry, Gauge Symmetry, and Symmetry Breaking”.)
  2. String Theory (some of week 11 “Unification and String Theory”, week 12 “Superstrings and Superstring Duality Part 1″, week 13 “Superstring Duality Part 2″.)
  3. Cosmology (week 15 “Cosmology: a brief history of our universe”, week 16 “Cosmology origins and string theory”.)
  4. Bullsh!t (weeks 18-19: Bob Park’s “7 Warning Signs of Voodoo Science” and Carl Sagan’s “Baloney Detection Kit”.)

Note: as promised in class, week 17 “Testability of string theory” is not examinable.

If you wait until the weekend or later to try to see me at my office, it will not work. I have a very busy schedule at present. Also, please do not send panicked emails on Monday or Tuesday just before the Test. ..

Cheers,
Prof. P.

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Spring Oral grade distribution

Hi everyone,

I will be emailing you your individual Spring Oral presentation grades in a few hours. In the meantime, here’s the class distribution:

graph of grade distribution: 6A+, 6A, 4 A-/A, 4A-, B+/A-, D, F

Spring Oral Presentations results

Cheers,

Prof. P.

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No office hours Mar27

Hi everyone,

I’ll be flying down to Washington DC on March 27th (on short notice, for a 3-day business meeting) in the early evening.  Since it is an international flight, I will need to leave downtown right after our Week 11 class.

Please plan ahead if you think you might need office hours help from me that week.

Cheers,
Prof P.

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Next week: scientific scandals

Hi everyone,

Next week is our ninth of the semester, and we will focus on scientific scandals. Most of the cases we will discuss happened when scientists went off the rails and committed ethical sins. But there is a significant admixture of politics and sociology involved as well. I will present information and discuss issues from the perspective of an academic physicist. This material is a very important component of the “Perspective” part of the course title “Modern Physics in Perspective”. Students who have relevant expertise in other disciplines are welcome to show it off during our seminar.

Four particularly high-profile cases were:-

  1. The claim by Andrew Wakefield that the MMR vaccine (against measles, mumps, and rubella) causes autism in young children. Not only did he misunderstand and misinterpret data from early studies, he actually committed blatant outright fraud. The later involvement of vacuous Hollywood actors in the ’cause’ has not helped. It is all such a waste. Many children in wealthy countries have suffered and died because their parents were too ignorant to get them vaccinated.
  2. The claim that power grid transmission lines cause brain cancer in children (and other ills). This is something that a lot of hypochondriacs want to be true, but there is no known biophysical mechanism that could allow this to occur.  Billions of dollars have been wasted on public hysteria over power lines, wi-fi, and other things that fearful people can’t see.
  3. The political hacking incident known as “ClimateGate“. This was actually a case of so-called fraud that was loudly proclaimed but not actually committed. It took a lot of careful work to disprove this politically motivated allegation.
  4. The Jan Hendrik Schön scandal, a case of outright fraud by a young high-profile physicist. This boy behaved very badly. We will discuss why it happened and how incidents like this can be prevented in future.

I encourage you to bring your own example(s) of malfeasance by physicists and other scientists. We should have a rockin’ good time discussing it all together! :D

See you next week.

Cheers,
Prof. P.

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Spring Test: reminder and practice tests

Hi everyone,

This is just a reminder that the Spring Test will be held in two weeks — on Wednesday 20th March, in-class (in MP606) for one hourstarting at exactly 2:20pm and finishing at exactly 3:20pm. NO lateness excuses can be accepted. If you are late, you will simply have less time to do the Test. No exceptions. Please arrive early if you possibly can.

The Spring Test is worth 15% of your final grade. You will have sixty minutes to do the Test, so it will be time pressured. You will be expected to answer three out of four questions given. Each question is short-answer style. Please bring a (silent!) watch or clock with you if you think you might need to check the time, as our classroom clock faces your backs.

All concepts covered in class after the Fall Test – up to and including the Sagan Baloney Detection Kit – are fair game. (You will not be tested on material that was in any of the Oral presentations.) Consider my lecture notes to be the definitive source for what you should study – not Brian Greene’s textbook. If you aren’t sure about any concept, plan to visit me in my office for a physics chat.

You can practice on the two most relevant past Tests for this course: Spring 2011 Test, Spring 2012 Test.

All writing must be done in blue or black pen only, on the Test paper itself. In particular, pencil or other erasable writing will not be marked (because it can be tampered with). Crossouts in pen are absolutely fine, just as long as they are done clearly. If you need scratch paper, use only the blank sheet at the back of the Test paper. No exceptions.

NO unauthorized aids will be allowed. In particular:-

* No Textbook;
* No Class Notes;
* No Web Documents;
* No Food or Drink* (it’s noisy, smelly and distracting); and
* No Electronic Devices, apart from a watch (eg: no calculators, no cell phones)!

The sole aid permitted is (optional): a TWO-sided one-page summary sheet – the “Safety Blanket”. This item is certainly not compulsory, and it will not be graded, but creating yours is likely to help you study. It should also help reduce any nervousness. Your Safety Blanket must be handwritten by you, on both sides of the sheet of (8.5×11in) Letter-sized paper, in a font large enough that an old fart like me can read it, and signed by you. If you bring a Safety Blanket, it must be presented to the Professor for approval a minimum of five minutes prior to the Test (ie, by 2:15pm). You should have no trouble getting approval if the above rules are followed. Note: to help ensure Test security, all Safety Blankets must be surrendered along with Test papers at the end. So if you need to keep a copy of your Safety Blanket, make a copy prior to the Test.

Of course, all standard UofT exam rules apply as well. If you are not sure about the rules (for example, the rule that “Ignorance of the rules does not excuse cheating.”), then please read up on them pronto.

Please remember that absolutely NO cell phones are allowed in the room during any UofT examination. As our UofT code of academic integrity emphasizes, “In a UofT exam, it’s not a cell phone, it’s an unauthorized aid.” Leave your cell phone at home, or find somewhere else safe on campus to leave it during the Test. No university employee can take responsibility for the safety of your belongings, so please plan accordingly.

All bags containing any extra personal belongings must be left at the front of the room beside the Professor for the duration of the Test and for at least five minutes prior. No access to personal items* will be permitted during 2:15-3:20pm, and no bathroom visits* will be allowed either.

* Exceptions can be granted only on medical grounds, in tune with UofT rules.

Cheers,
Prof. P.

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Illness-based grading delay

Hi everyone,

I had planned to clear my piles of grading over Reading Week. But on Monday I discovered an infection in my dominant eye, so I could hardly read for the whole week. Then on Saturday I came down with a nasty cold as well, which has so far laid me up in bed for almost four days. I do expect to be able to teach class tomorrow, but I will be subdued compared to normal and will also wear a mask to avoid potential  transmission of viruses via coughing.

I hope you had a break in Reading Week, even if I didn’t! :-)

Looking forward to talking Carl Sagan’s Baloney Detection Kit with you tomorrow.

Cheers,
Prof. P.

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Essay file naming etiquette

Hi everyone,

May I make a suggestion for how you name the electronic files that you send me as your essays? Please do not just name your next email attachment “Essay6.pdf” because that does not tell me your name nor does it tell me anything about what course the essay was for. I prefer a filename of the form:-

pmu199y.e6.amanda.peet.pdf

The first part “pmu199y.” denotes the course. The second part “e6.” denotes which essay (in this case, the sixth). The third and fourth parts of the filename “amanda.peet” are the given and family names, respectively. If you prefer, you can separate the parts of the filename by underscores, like so:-

pmu199y_e6_amanda_peet.pdf

Or you can use minus signs, like so:-

pmu199y-e6-amanda-peet.pdf

Thanks in advance for indulging me on this.

Prof. Peet.  :-)

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Reading for Feb 27

Hi everyone,

Next time we will continue developing our ability to tell science apart from pseudoscience.

We will discuss the material in Chapter 12 of Carl Sagan’s famous book “Demon Haunted World: Science as a Candle in the Dark”. Please read this chapter, which is entitled “The Fine Art of Baloney Detection”, before coming to class on Feb 27th. You may also access a significantly stripped-down version of the chapter here.

Cheers,
Prof. P.

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Reading for Feb 13

Hi everyone,

This week we get to focus on recognizing pseudoscience for the first time. Woohoo! :-D

We will begin with a list of seven indicators of pseudoscience that was put together by a wonderfully cranky and incredibly smart older physicist at the University of Maryland at College Park, Professor Bob Park. He has his own web site http://www.bobpark.org/ where his weekly columns on the state of science politics in the USA are archived. I generally agree with what he writes.

Please read Bob Parks “Seven Warning Signs of Voodoo Science” before coming to class on Wednesday. Also, come up with a few related examples of pseudoscience to share with the rest of the class during our discussion.

Cheers,
Prof. P.

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