In response to my post on random drug testing in Florida, commenter Scott mentioned the danger of false positives and said that a second test in his case cleared him of having taken drugs. My advice to anyone is that whenever you take a high-stakes test for anything that has a small incidence in the general population (drugs, diseases, whatever) and it comes out positive, always consider asking for a second test.
Here’s why. [Read more…]
It is always interesting to see religious people trying to find ways to reconcile modern science with their religious texts. For people who have a literal interpretation of the Bible, the task is much harder, with the Genesis story being a nightmare. This is not because the Genesis story is particularly crazier than the other miraculous stories in the Bible but because it is the most familiar and you cannot easily finesse it away. Everyone knows the general outlines of it, even if they are [Read more…]
In a comment to the earlier post on Einstein’s view of god, reader M. Nieuweboer pointed out that as Einstein got older, he seemed to dissociate himself more and more from religion and the idea of a god, and became more explicit in rejecting attempts to make him seem religious.
This comment piqued my interest and I began to wonder if there was a correlation between the age of scientists and their levels of disbelief. As a personal aside, I myself [Read more…]
You don’t often see the word ‘coulombs’ in the newspaper, let alone in the sports section. So when it does, people sit up and take notice.
In a National Hockey League game between the hosts the LA Kings and the visiting Columbus Blue Jackets with the score tied at 2-2, replays showed that the clock stopped [Read more…]
Scientists sometimes use god as a metaphor, Albert Einstein being one of the more notorious practitioners of this habit. This can cause religious people to think that the scientist believes in god and get all excited, since any scientist who is also religious is seen as evidence for [Read more…]
I came across a study that reports:
We surveyed an entire class of high-functioning young adults at an elite university for prospective major, familial incidence of neuropsychiatric disorders, and demographic and attitudinal questions. Students aspiring to technical majors (science/mathematics/engineering) were more likely than other students to report a sibling with an autism spectrum disorder (p=0.037). Conversely, students interested in the humanities were more likely to report a family member with major depressive disorder (p=8.8×10−4), bipolar disorder (p=0.027), or substance abuse problems (p=1.9×10−6).
Since my older daughter majored in engineering and the younger in humanities, that must mean that our family has a good chance of developing a fairly good set of neuropsychiatric disorders, no?
Observational or experimental data, if plotted on a graph, consist of a set of discrete points. There are potentially an infinite number of lines that can be drawn through those points. In some cases, the data itself suggests an overall rising or lowering trend but whether the relationship is a simple linear one or more complicated is not often easily discernible with the naked eye. We have to impose a curve based on prior expectations of [Read more…]
Look at this image and ask yourself which vertical red line would be longer if measured with a ruler on the photograph.
Phil Plait uses this image to give an explanation of the ‘moon illusion’, that refers to the phenomenon that a full moon that lies low on the horizon appears to be much larger than [Read more…]
We’ve all been in situations where the traffic is moving along smoothly and suddenly there is a backup for no apparent reason. Computer simulations suggest that this can be caused simply by one driver slightly braking, causing the driver behind to brake and [Read more…]
I have written before (here and here) about how babies, even before they speak, have an intuitive sense of justice and fairness, suggesting that [Read more…]