Posted inPhilosophy

What is the environment?

The environment is, of course, something that only you can save. It is something to be preserved. It has a spiritual essence. In hotels anxious to reduce their laundry bill,…

Hostage ads are cancelled.

The bizarre "We are holding your child hostage," and the innumerate "Over 12 million kids are being held hostage" ads --- which I wrote about here -- have been canceled,…

You have to die of something: or, COPD deaths “skyrocket”

If you think it’s good news that the death rates by stroke, heart disease, cancer, and just plain accidents have declined last year (diabetes deaths have remained steady), then you’re not trying hard enough to find the dark lining to this silver cloud.

But, thank goodness, death rates from COPD have “skyrocketed“, so we don’t need to stop worrying! The New York Times even supplied a graph (below) as evidence of this calamity.

COPD death rates by males and females

There are two things wrong with this bleak outlook. The first is an error in logic, the second is one of bad graphics.

Can you see what’s wrong with the statistical graph? Looks like a dramatic increase in COPD deaths, right? Well, maybe. But hasn’t the population, for men and women, also increased—skyrocketed—since 1980? I have only been able to discover (from this site) the COPD deaths per 100,000 up until 2004 (not 2005 like the Times picture), but here is that picture:

Posted inFun

Waywardrobot.com

One of the most promising new webcomics---Wayward Robot---discussed on the podcast Web Comic Beacon (at about the 24th minute). The comic is drawn by my younger son.

Another attempt to show abstinence is bad: “Losing virginity early or late tied to health risks”

That headline is from an MSNBC story of the same name. Taken at face value, it argues that, for maximum healthiness, we should all aim to lose our virginity at the same age.

No, just kidding. What the article actually says is that “People who start having sex at a younger or older than average age appear to be at greater risk of developing sexual health problems later in life”.

Which actually does sound like they think we should all start having sex simultaneously. But, still no. Actually, their intent is to “cast some doubts on the benefits of abstinence-only sexual education that has been introduced in U.S. public schools.”

Huh?

How can you get from saying the people who start having sex at a younger age or those who start at an older age are “at higher risk” to “abstinence is bad”?

Posted inFun

Beer: alcohol, calories, and carbs

Boxplots of calories by beer style

Which beer style has the most calories? In general: porters. The least: lager, the style of beer with which you are probably most familiar. Budweiser, Miller, Coors, the majority of all mass-market beers are all brewed in the lager style.

These box-plots use data from the web site RealBeer.com. The editors of that site keep a running list of brewers, beers and the alcohol, calories, and carbohydrate content of, at this writing, 229 different beers from 72 different breweries. There are, naturally, many more beers and breweries than this around the world; this data reflects the beers of most interest to readers and users of RealBeer.com. The classification into styles of beer is my attempt, and any mistakes in classification are my own. You should visit RealBeer.com to learn more about beer styles. The RealBeer.com data set is most complete with alcohol values, but there is far less information about calories and carbs, owing to the greater difficulty of obtaining or measuring those values.

Here’s a quick lesson on how to read box plots: the dark, center line is the median, the point at which 50% of the values are above, 50% below. The next two horizontal lines are the quartiles: the top one is the 3rd quartile, which means 25% of the values are above it; the next is the 1st quartile, which means 25% of the values are below it. The top and bottom lines are the 5% and 95%-tiles, with the obvious interpretation. Points beyond these are more extreme values. Box-plots are intended to give you an idea of the spread, variability, and distribution of data.

But the main lesson is: if you are counting calories (and don’t insist on taste), lager beers are your choice. Lager and ales also have the widest ranges of calories, but this may reflect the fact that most of the data are from these two main groups. 44% of the beers listed are ales, 38% lagers, 4% porters, 8% stouts, and 6% wheats. There was also one barley wine, a style noted for its high alcohol content, which I classified into an ale since it is difficult to do statistics with just one data point.

How about alcohol content?