Coffee versus beer

By Charles Sutton on February 23, 2013

If you ask yourself, “Should I have one more beer?,” well, if you had to stop yourself and ask, you probably shouldn’t.

If you ask yourself, “Do I need another cup of coffee?,” well, if you had to stop and ask, you probably need it.

My new favourite pages on Wikipedia

By Charles Sutton on February 9, 2013

I have several new favourite pages on Wikipedia:

  • A list of films that most frequently use the word “fuck”. Apparently there are people who count these things. Unsurprisingly, the winner is a documentary about the use of the word “fuck”.
  • List of lists of lists. There many pages on Wikipedia that are lists of lists, e.g., every country has a list of lakes in that country. So there is a page that lists all of the “Lists of lakes in Country X”. But this page is only one of the many lists of lists on Wikipedia. This list of all such pages is the Lists of Lists of Lists. [h/t: Daniel Renshaw]

Previously, my favourite page on Wikipedia hd been a description of the seven different forms of lightsaber combat. (Apparently, Samuel L Jackson’s character had developed a form to himself. That’s how he was able to beat the Emperor.) Sadly this page has since been deleted from Wikipedia, and it is impossible to retrieve deleted pages. There is a page on this topic on Wookiepedia, but it contains a scary level of detail that in my opinion renders it much less readable than the old Wikipedia page.

Related to the “fuck” list, I also like the study Delete Expletives?, which is a British study of people’s attitudes towards obscenity, particularly on television. One of the excellent features of this study is a ranked list of swear words in British English, based on a survey of over 1000 respondents.

Tags: silly

The first rule of academic politics

By Charles Sutton on January 25, 2013

“Don’t talk about academic politics”? Ha! I wish. Academic politics is nothing but talking. I guess that’s true for most all kinds of politics, really.

The First Rule of Academic Politics is: No matter what happens, you have to live with these people afterwards.

Another, perhaps dated, way to say this is that an academic department is like an episode of “Survivor”, except that instead of voting people off of the island, you vote them ON. To stay.

How I Make Coffee

By Charles Sutton on January 19, 2013

Pourover is a trendy and delicious way of making coffee. It is possible to make excellent coffee this way. This video by Matt Perger has a great technique for the Hario V60, which the one that I have been playing with since receiving it for my birthday.

Here’s a summary of the video. You will probably need to watch the vide for this to make sense:

12g coffee 200g water brewing time 2:20 total

  1. Add 50g water. Stir. Let bloom.
  2. At 0:30, add 50g water in outward spiral. Make sure no grounds are above water line
  3. At 1:00, add remaining 100g water in spiral pattern, again washing the grounds down the edges.
  4. Around 1:30 or so reseat dripper to even out bed of grounds

How do you know it’s 50g of water? Place your mug on top of a digital scale before pouring.

What kind of kettle do you pour the water from? Unfortunately, this really does matter. It’s important that the grounds be completely saturated with water, and that you pour the water slowly. Otherwise, you will create channels through the grounds through which most of the water will pass, causing part of the grounds to be overextracted and bitter. I am told that the Hario kettle is excellent, because it has a narrow swan neck which allows the water to poured slowly and precisely. But it also costs 50 pounds! It is difficult to find a similar kettle that is reasonably priced, but I have just gotten this Tiamo kettle and so far, so good.

[h/t: Artisan Roast]

Tags: coffee, hobbies

A simple trick to encourage lecture participation

By Charles Sutton on January 12, 2013

It’s the time of year when teaching is very much on my mind. In an essay about his teaching styleMichael Scott says something about encouraging student participation that stuck with me:

I’ve found that the very first class period sets the tone for the whole semester. If I don’t get students to participate on day one, they probably won’t participate at all, and the course ends up dreadfully dull. My first lecture in any class thus begins with a brainstorming exercise, in which I get as many different students as possible to voice a suggestion or opinion. 

Last year I tried something like this in my undergraduate machine learning class. I don’t want to go into details in case I use it again, but it wasn’t a brainstorming exercise (I couldn’t think of one), but a simple quiz question that introduced part of the material. I had the students vote on the correct answer—and everyone voted wrong, because it was of course a trick question. To my delight, I found that year’s class asked many more questions than the one before, even though it was significantly larger. This may be due to random variation, or to the fact that I was better at teaching the course the second time, but it’s enough that I’ll keep trying it.

Tags: lecturing, advice