They lurk in the water. They look harmless. But sometimes–not always, but sometimes–they can cause sickness: even death. “They” are blue-green algae, and it’s a bit startling to think that algae, something we think of, when we think of them at all, as an unsightly but harmless scum, can be toxic–because most algae, most of …
Tag: science
Seasonal affective disorder
Nobody (nobody human, anyway) likes getting up on a cold winter’s day when it’s still dark and the wind is howling, but for some people it’s more than just unpleasant: it’s almost impossible. They suffer from a form of depression called Seasonal Affective Disorder (also known, appropriately, as SAD). Seasonal depression has probably been around …
Melting ice in Antarctica
Considering how cold it’s been around here recently, global warming sounds not so much like an environmental problem as it does something devoutly to be wished for–but as someone once said, “Be careful what you wish for–you may get it.” While it’s true that science has yet to come flat out and say that global …
The science of tires
It happens to all of us sooner or later. We’re in a hurry, we head off in our car–and discover we have a flat tire. This happened to me twice in December, and got me thinking about tires, which is unusual, because usually we don’t think much about tires at all. After all, they’re pretty …
Influenza
The single phrase that’s probably heard more this time of the year than any other, aside from “Cold enough for ya?”, is “the flu.” “Jimmy’s come down with the flu.” “I won’t be in today, I’ve got a touch of the flu.” “Hey, have you caught the flu that’s going around?” Although we tend to …
Calendars
It’s 1996, which means it’s time to take down your old Star Trek calendar and put up your new one. Okay, so maybe you don’t have a Star Trek calendar. Maybe you have a World’s Fastest Cars calendar, or even (gag) a Friends calendar. The point is, for us, a calendar is a much an aesthetic and/or advertising medium as it …
The science of New Year’s
The end of one year and the beginning of another has been a time of celebration from time immemorial. But celebrating the new year on January 1 is a relatively new innovation. In the Middle Ages most European countries used the Julian calendar (still used by Orthodox churches), and each New Year began, not on …
Aerotarandusdynamics: the science of flying reindeer
[podcast]http://edwardwillett.com/wp-content/uploads//1995/12/The-Science-of-Flying-Reindeer.mp3[/podcast] At this festive season, aerotarandusdynamics, one of the least-known branches of the vast tree of science, finally comes into its own. “Aerotarandusdynamics” comes from “aero,” air, “tarandus,” the latter part of the scientific name for reindeer, Rangifer tarandus, and “dynamics,” moving. Hence, aerotarandusdynamics is the study of reindeer moving through the air: flying reindeer. …
Cold
We haven’t been setting any records, but all the same, it’s been pretty darn cold recently. Not that there’s anything new about that. Saskatchewan is a wonderful province and I’m very fond of it, but (I trust I’m not revealing any state secrets here) it’s cold. In winter in Canada, the cold can begin to …
Science gifts for Christmas: 1995
When I was a kid, nothing made me happier at Christmas than a present that had something to do with science. Of all my Christmases as a small boy in Texas, the one I remember best is the one when I was seven, which is when my parents gave me my first microscope. Asked what …
Fatigue
The Grey Cup in Regina is over. You could tell the day after the game by the number of people wandering around with dazed expressions and bags under their eyes…which inspired me to write this week about two souvenirs of the festivities almost everyone picked up: fatigue and/or a hangover. Fatigue is characterized by an …
Christmas questions I
Christmas is a time of reflection, a time to think deeply about some of the important questions the Yuletide brings to mind. For example: Q. How come Christmas trees keep sucking up water even after they’ve been cut down? A. A tree slurps up six or seven litres when you first put it up, and …
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