Contrary to the popular American belief that it was Columbus who discovered that the Earth was round, that fact was not only known a long time before, the circumference of the Earth had actually been calculated to high accuracy 2,200 years ago. [Read more…]
(Note: I accidentally posted a draft of this yesterday before it was ready for publishing. I deleted the draft and am reposting it today with some additional editing and new material. I apologize for any confusion.)
I myself do not routinely swear. But when I accidentally do something stupid and hurt myself, I will find myself involuntarily swearing. I am sure that many people have had that same experience or at least being strongly tempted to swear when experiencing pain. But why do we do that? [Read more…]
It is quite extraordinary how the Catholic Church seems to go out if its way to alienate women. Fresh from their assault on nuns (see here and here), the US Conference of Catholic Bishops is now targeting Girl Scouts. Both my daughters were girl scouts and it would be tough to find a more wholesome or inoffensive group. But the old men of the Catholic Church seem to see it as a gateway to evil. [Read more…]
As a scientist who interacts a lot with the general public, I am often asked to explain phenomena that lay people have observed. I used to take those observations at face value and was often stumped at coming up with an explanation because of the inconsistent elements the observations seemed to contain. But I have found from experience that what people tell me they ‘saw’ is not purely raw observational data but that when you go back and actually repeat the situation, the observations are different from what was originally reported and that much of the paradoxical elements go away. [Read more…]
There have been some interesting developments in learning how birds navigate. It was thought that birds had tiny chunks of metal in their beaks or inner ears that enabled them to detect the direction of the Earth’s magnetic field. But more research has thrown doubt on the existence of these so-called ‘compass cells’, saying that they were just a type of white blood cells. [Read more…]
I like optical illusions, such as the Ponzo Illusion, which is one of the better explanations of why the full moon on the horizon seems so big. They provide nice examples of the complex interplay of visual sensations and brain activity and cautions us that what we ‘see’ may not be really what is out there. [Read more…]
Victor Stenger has had a long career in experimental high-energy physics. He has become a prolific writer on the intersection of science and religion and I have referred to him frequently in past blog posts, especially to material in his 2007 book God: The Failed Hypothesis. Stenger is an unabashed ‘new atheist’ who thinks that science and religion are fundamentally incompatible and does not shy away from saying so bluntly. The title of his latest book (and its subtitle The Incompatibility of Science and Religion) leaves the reader with no doubt as to where he stands. The book was released this month and I have just had the pleasure of reading it. It essentially updates and expands on the arguments of that earlier one. [Read more…]
Cosmologist Mark Trodden has an excellent post where he disentangles three questions that most people are interested in knowing about the universe: What is its shape? Is it finite or infinite? Will it expand forever or eventually collapse back into itself? [Read more…]
Men can be reassured that it looks like the Y-chromosome is not going extinct after all.
The Colbert Report
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(This clip appeared on March 26, 2012. To get suggestions on how to view clips of The Daily Show and The Colbert Report outside the US, please see this earlier post.)
In general, questions such as “Is (subject X) a science?” are not very useful. After all, what does it matter what label you assign to something? In certain situations though, the label matters quite a lot. In the US, because of the Establishment Clause, the answer to the question of whether a theory is scientific or religious can determine if it can be taught in public schools. This is why religious people constantly seek to either label their religious beliefs (creationism and intelligent design) as science or seek to have those theories that threaten religion (like evolution) be classified as something other than science. [Read more…]