Tag: Pique the Geek

We have been talking about sustainability recently, and one of the resources in most jeopardy is fresh water.  In the United States the freshwater problem is becoming more and more significant, and in many parts of the world it is already desperate.  We shall look at some of the methods used to purify nonpotable water tonight.

First of all, we need to understand what kind of water we are purifying.  It ranges in quality from surface or ground freshwater, requiring only minor treatment to eliminate microbes that might cause disease (the vast majority of drinking and industrial water in the United States comes from these sources), all the way to seawater, with lots of intermediate kinds.

I have been thinking about sustainability for a long, long time.  Unfortunately, in my scientific analysis, it not possible if we continue on the route that we have chosen.  This is an extremely complex topic, and might even deserve its own, new, date.  I am thinking that Wednesdays might be a good time for it.  This is more speculation than science, so it does not properly belong on Pique the Geek for the long term.

This will be the most controversial topic that I have ever tackled.  I may be dead wrong in some of my speculations, but a lot of thought has gone into them.  I offer no easy remedies but do ask the hard, horrible questions and illustrate them with facts.  I will ask that you, my readers, tell me whether this deserves a new series, uncoupled from Pique the Geek. Please read further.

Well, summer will be officially over on or around 20100921, the autumnal equinox.  This is the day when the nights begin to grow longer than the days, just like the vernal equinox, when the nights grow shorter than the days.  It all has to do with the unique orbit of our wonderful spaceship earth as it orbits the sun.  Perhaps near that date I cam elaborate.

This time, however, we shall discuss the beginning of the cold and flu season, and how to deal with it.  I have only two rules, and they are important.  Observe them and you will have fewer of them, I suspect.

Most of you who read my posts know that I am a big fan of the Gene Roddenberry Star Trek universe of science fiction.  Those of you who do not read my posts as often also know that I am a dedicated fan of Doctor Who.

What you might not know is that both of those TeeVee Series have contributed more that you might not have thought towards our technology as it stands at present.  Well, we do not have a TARDIS just yet, but we have many of the things that Star Trek pioneered.  Tonight we will study just a few of them that are common.

Please stay with us on this trek.  By the way, the term “Star Trek” was NEVER used in the original series, but finally was uttered in the very last installment of Star Trek, The Next Generation, by “Q”.  

We have talked about how engines work in the past couple of installments of this series, and now need to bring together some important engineering factors.  We have talked about intake strokes, compression strokes, and others, but only very superficially touched on how everything comes together.

For an engine to work properly, everything has to be coordinated.  For simplicity, we will consider a conventional four stroke, gasoline powered automobile engine.  Diesel engines are in some aspects simpler, and will be covered concomitantly.

Remember, an engine has to do all of the things about which we have discussed, completely synchronized, and EVERY time.  For an engine rotating at, say, 4000 times per minute, this can be a daunting task.

I apologize for posting later than normal.  Windows decided to perform an update when I sat down to finish this piece, so I lost around 45 minutes this evening.

The most important part of an automobile is how to power the wheels (or belt, if one talks of a snowmobile).  What ever device does this must fulfill several requirements, which we shall look into later.

A device to propel a car must do several things, depending on the complexity of the automobile.  It must produce enough power to overcome internal friction, to overcome air resistance, to overcome rolling resistance of the tires, and a couple of other things as well.  Because of differences in combustion engines and battery operated motors, each type will be discussed separately.

With the near release of the Nissan Leaf and the Chevrolet Volt, both 100% electric driven automobiles, I thought that it would be appropriate to reflect on the history and technology of the automobile.  Actually, the Volt also has an internal combustion engine on board, but that engine runs a generator, so both of these cars are exclusively driven by electric motors.

The engine to generator concept is not at all new, as practically all big Diesel locomotives are driven that way.  There are significant advantages in using electric motors to propel vehicles, even if they are powered by on board generators.  We shall get to that in future.

Many of you who read my posts regularly know that I am a very dedicated numismatist, and that I have written many posts about coin collecting.  I have also written about the history of United States coins extensively.

What you may not know is that I specialize in Lincoln one cent pieces, minted from 1909 to the present day.  This is the longest running series of all United States coins by a large margin, lasting 101 years now with little change on the obverse, but with some.

This post will let you know a bit more about them, and also some of my passion for what most people think of as something insignificant.  They are far from insignificant.

Scientific terms are often corrupted, and the wingnuts often do it.  They conflate hypotheses with theories, and theories with laws.  They also reduce the value of a theory to what they make out as just a guess.

This post is an attempt to separate the words and make the scientific method more sensible to folks who are not trained scientists.  As always, if I not clear, comments and questions are always welcomed.

Most of us have heard of zinc in passing comments.  Some TeeVee commercials tout the virtues of it in the diet.  Actually, it is an essential trace element, and part of some coenzyme systems, and so is essential for health.  Interestingly, it is more important for men than for women because the prostate gland needs lots of zinc to produce semen and to maintain health.

That does not mean that women do not need zinc, just that they do not lose lots of it in seminal fluid.  The requirements for zinc in the metabolism is the same betwixt the sexes, but, as females lose iron during menstruation, men lose it during ejaculation.  Please follow, and I promise not to be so graphic for a while.

This has been sort of a recurring theme for me the past few years for the installment nearest Independence Day.  You can hit my profile and find the earlier entries in this series.

This time, I intend to focus on the single greatest improvement in technology (other than the development of black powder) that has made modern, highly colored fireworks possible.  Until relatively recently the only colors available were white, yellow, and a dull red, with very faded out, compared to today, other colors.

First some theory, then some facts.  Please follow.

I apologize for not including a post last week, but I suffered from a large amount of lack of motivation.  You see, this was the first wedding anniversary in 33 years on which the former Mrs. Translator and I were not wedded.  I poured out my heart the previous Friday night here, and was drained.

Saturday I went to the mailbox and found a parcel from her.  She had sent me one of the most authoritative and scholarly works about the American Civil War (I still have problems with the name of the war, because it was not, by definition, a civil war, but I am coming to understand that my previous preferred title, The War between the States, is quite inaccurate as well).  In addition to the wonderful book she sent a card that touched me, in a good way, so much that I guess that I was dumbstruck.  I will never mention anything about the contents of that card except to say that it was likely the most touching thing that I have known in many years, and the telephone conversation that followed made it even more so.