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Archive for 2002
Big Doings in Science
Science is not everybody’s cup of tea. Most people are busy – and their major interest may be work or family or church related. So why should you or anybody else care about physics or any other science related issue? The fact of the matter is that scientific theories have huge effects on public attitudes. It is always a good idea to keep an eye on current developments. Certainly there are few theories as famous today as the Big Bang. Even some Christian apologists make a special point of supporting long ages and Big Bang cosmology. They may be less inclined to do that in the future. Read the rest of this entry »
Canadian Discovery Takes Us Way Back
In science, the word “serendipity” refers to an unexpected, but happy discovery. Typically what is meant, is a discovery which was not sought but which leads to significant advances in knowledge or technology. Penicillin, for example was a serendipitous discovery by Sir Alexander Fleming in 1928. What he was trying to do, was grow cultures of common bacteria (germs). But what was that pesky mold doing growing in the culture? When Sir Alexander realized that the mold seemed to discourage the growth of the bacteria…. well the rest is history. However, I am not sure that the unlooked for discovery of gigantic sand waves in the Juan de Fuca Strait near Victoria, BC would qualify as serendipitous or not. While they seem to be the biggest and best sand waves known, scientists are apparently not curious enough to study the phenomenon further. Read the rest of this entry »
Chalk Talk
Can you imagine a trip to England without a visit to the white cliffs along the south east coast? We couldn’t, so we went. There we stood at the foot of an awe inspiring cliff of sparkling white chalk. Coarse looking, but flat bedding planes divided the towering wall above into endless horizontal layers or strata. It seemed strange however that the shore was covered with hard, rounded pebbles as well as some shiny black fragments with sharp edges rather than white chalk. Closer inspection indicated that the shiny black chunks and the grayish rounded pebbles were of the same material — only the pebbles were rounded and worn by wave action. Now where did these pebbles of hard material come from? When you come to think of it — where did the chalk above come from too? Read the rest of this entry »
Comparative Youth
When I say I’m young, people laugh! Well, I am young, compared to lots of things: the pyramids of Egypt, for example. Whether an object or person is young or old, you see, depends upon what you are comparing. Even thousands of years can be young in the right context. For example, I read recently in Scientific American that the rings of the planet Saturn are “young”. In that case, astronomers were not comparing these rings to the ages of any of us living today, but rather to evolutionary ideas about the solar system. Most astronomers imagine that the solar system is billions of years old. However the ring systems around several planets in our solar system may be only “several thousand years” (Joseph Burns et al. 2002. Scientific American 286 #2 p. 73). That’s a huge difference. But why do we care? What do several zeros (or not) at the end of a number matter anyway? The problem for secular scientists is to explain how young rings came to be around “old” planets. The alternative, of course, is to conclude that both the planets and the rings are young. Read the rest of this entry »
Evolution: The Secret Behind the Propaganda
“Everybody” knows, one might suppose, that evolution is about facts and the creation model is about belief. Certainly this was the message of the recent PBS TV series entitled “Evolution” which aired in September 2001. Indeed information sent to all the PBS stations stated this very thing: “All known scientific evidence supports evolution…. New discoveries over the past 150 years have all supported the validity of the theory of evolution.” (PBS Internal Memo. 2001. The Evolution Controversy: Use it or Lose it. Evolution Project / WGBH Boston. p. 5. June 15.) The memo further defined a scientific theory as a “higher level of understanding that ties ‘facts’ together.” (p. 5). As to the creation model, the memo dismissed it as “not science. It is part of a religious belief system…” (p. 6). Such statements and other similar ones over the years have convinced many among the public that science in general and evolution in particular are based on observations from the natural world and thus they are empirically or factually based. The interesting thing is that this is not the modern understanding of science among scientists themselves. They have long since abandoned much concern for actual data. Read the rest of this entry »
Extinction Merry-Go-Round
Fashions come and go. Everyone knows that. Sooner or later today’s “cool” youth find themselves wearing the “geeky” designs that their parents had modeled so many years before. While modern youngsters formerly declared they would not be caught “dead” in such outfits, now that the recycled designs are the new “in-thing,” youth happily look much as their parents did. It’s fun to laugh at these quirks and foibles of human nature. But fashions are not the only thing that we recycle. Scientific explanations have a habit of reappearing just as frequently as old discarded fashions. Explanations concerning mass extinctions are a case in point. Read the rest of this entry »
Find a Fresh Idea, Dudes!
Teachers! or parents! What do they know about creativity? How many of us have been provided with a paper and pencil and commanded, urged or cajoled to draw something or write something. But you can’t just produce something on command! You have to have an idea … and ideas are hard to find. I once received a greeting card that declared “Nothing to do so I’ll write … nothing to write so I’ll close.” If we could convince grownups that creativity is a special gift that few of us enjoy very often, maybe then there would be fewer assignments and more spare time for doing nothing. (I know it’s just a dream, teachers and parents are not going to change anytime soon, and this is probably just as well.) Read the rest of this entry »
Spider Silk? Bring On the Nanny Goats
Spiders look scary and with good reason. They are all predators, you know. Their eight hairy legs and alarming mouth parts would frighten any potential victim. Although the usual victims are insects, even most people are reluctant to get too close to these creatures. Nevertheless, despite their frightening appearance, spiders are actually wonderfully designed organisms. Many species effortlessly produce an amazing product — spider silk. For forty years, scientists working for the American military, have sought to produce something like spider silk. Apparently this material is, by weight, five times stronger than steel. the military would love to use it for bullet proof vests, for parachutes, tents and surgical dressings. Until very recently however, all that the scientists produced was useless blobs. The spider, on the other hand, turns special proteins into as many as seven kinds of silk. The best plan would have been to let the spider do all that for us as well as for herself. Spider farming would have been fine, except that these fierce predators ate each other up. So it was back to the drawing board. Read the rest of this entry »
Subtle Traps in the Borneo Jungle
Whatever you may think about cats, there is no denying that they are beautifully designed. No, I do not mean their attractive appearances and charming personalities. I mean their design features which allow them to catch mice. The cat, of course, is an expert in the strategy of the hunt. She lies in wait, preferably in a spot where she is not too conspicuous. Then she stalks her prey, slinking along ever so quietly. Finally she winds up for a mighty spring through the air with a precise landing spot… right where the unsuspecting victim hesitates. Then voila! Here she comes to show the victim to you. Naturally you are very impressed with this cat’s achievement. If her strategy were not perfect, there would be no victim since mice are notoriously cautious. Read the rest of this entry »
