Dale Husband's Intellectual Rants

Human virtues, stupidity, and science.

Archive for the ‘biology’ Category

EVERYONE should be vaccinated!

Posted by Dale Husband on June 3, 2009

Many people are opposed to vaccinating children, fearing that they might be prone to autism as a result. But there is no clear scientific evidence that autism is a cause of vaccinations. People merely ASSUME that because their children’s autism starts soon after their vaccines are administered, but most children who are vaccinated do NOT get autism. If vaccinations caused autism, then nearly all children vaccinated would be autistic, and we would probably have discovered the agent in vaccinations that cause autism by now. Coincidences often happen, but unless the scientific method confirms the existence of an actual cause for something like autism, a coincidence is all it is. Assuming that a coincidence and the hypothesis resulting from it must be the same as a FACT without confirmation is actually magical thinking that is anti-scientific.

While the cause of autism may be questionable, the danger of viral diseases spreading because of children being left unvaccinated is not. Viruses can only reproduce when they have hosts that they can attack. And every time viruses reproduce, they have a chance of mutation. And when they mutate, they are likely to become more deadly, eventually making the vaccinations obsolete. That will never happen if all children are vaccinated, but it might happen eventually if only some are. Of course, once vaccinations become ineffective because of viral mutations, anti-vaccination nuts will claim they were proven right. Thus, their insane claims are irrefutable.

Even if vaccinations DID cause autism in a few cases, it is better for a child to be autistic than to be DEAD! If people like Jenny McCarthy think otherwise, then as far as I am concerned they can rot in hell!

http://en.wikipedia.org/wiki/Jenny_McCarthy#Activism_and_autism_controversy

http://en.wikipedia.org/wiki/Thiomersal_controversy

Posted in biology, denialism, scientific | Tagged: , , , , | Leave a Comment »

My vision of science

Posted by Dale Husband on September 10, 2008

To me, there are only five divisions of natural science: Physics, Chemistry, Biology, Astronomy, and Geology. The subdivisions within those branches and the connections between them illustrate the futility of essentialism.

http://en.wikipedia.org/wiki/Essentialism

Physics and chemistry are the “parent” sciences and biology, astronomy, and geology are the “children” sciences that are built on the first two. Parent sciences do not have a historical element, but children sciences do because the physical and chemical laws are applied to deep time to produce natural history. The scientific method is used to define and confirm all physical and chemical laws.

http://en.wikipedia.org/wiki/Deep_time

http://en.wikipedia.org/wiki/Scientific_method

Having a holistic view of the universe, it seems to me that one can only understand it properly by looking at all its component parts and the various ways they can interact, and thus boundaries between different branches of science must ultimately become meaningless. To become an expert in astronomy, for example, without studying geology or chemistry is a waste of time because you would miss the connections between them and thus limit the scope of your research.

http://en.wikipedia.org/wiki/Holism

Posted in biology, scientific | Leave a Comment »

A really stupid way to honor Darwin

Posted by Dale Husband on August 25, 2008

http://www.thebeagleproject.com/

The HMS Beagle Project

In 2009, the bicentenary of Charles Darwin’s birth we will build a sailing replica of HMS Beagle. An icon of scientific progress, she will circumnavigate the globe in Darwin’s wake, crewed by aspiring scientists and researchers. They will carry out original research both at sea and on land, updating Darwin’s observations, breaking new scientific ground and relating the adventure of science to enthuse a new generation of young students. If you support our vision, contact us, donate to the build fund, request a sponsorship pack, or visit the Beagle Project Shop USA or Europe/Japan, buy the t-shirt and show ‘em you want a Beagle sailing the world in 2009.

Why is this idea stupid? Because you can accomplish a lot more scientific research with a modern ship dealing with present day biological issues rather than merely reenacting Darwin’s voyage. Science is not about taking the road already traveled, but going down a previously untraveled path to see what might be found.  I will not contribute a dime to such a dubious project. Indeed, I think it is a SCAM!

Posted in biology, evolution, scientific, skepticism | Tagged: , , | 14 Comments »

How NOT to argue or do “research”

Posted by Dale Husband on May 31, 2008

http://scienceblogs.com/pharyngula/2007/03/lynn_margulis_blog_tour.php

Note comment #163, which I wrote in reference to some earlier commenters.

(((Interesting comments, these three.

Let’s face it, no one who is not a dissident is going to read links to an HIV dissident site, especially when some of the papers are by Duesberg. People may read papers from mainstream scientists so long as they support their own arguments. Everyone here is interested in furthering their own arguments. Period.
Posted by: wayne | March 19, 2007 7:46 PM


“Not only have I read Duesberg’s articles but I have checked his claims with the ‘orthodox’ literature. It is only after this that I concluded that duesberg is full of crap.”
And therefore everyone reading this blog should take Chris Noble’s word for it. Just like everyone takes nature’s and Science’s “word for it” when they also say Duesberg is full of crap. My guess is that (unlike Chris Noble) 99% of people who take [fill in the blank]’s “word for it” have not actually taken time to examine the “dissident literature” (or even the “orthodox literature” which dissidents allegedly “cherry-pick” and “abuse”). My guess is, 99% of people who dismiss dissidents out of hand do so simply because “everyone else thinks so…”
And then everyone wonders why it’s NOT impossible for such a blunder to have happened…
Jake
Posted by: Jake | March 24, 2007 6:51 AM 

 

 

 

 

DT said: “I dismiss dissidents because I have taken the trouble to look in detail at their claims, and found them wanting”.
DT, as with most of what you have to say, that statement of yours is not true at all!
DT dismisses the HIV dissidents because DT is a HIV drug rep to doctors for a pharmaceutical company! Doooohhhh!
Posted by: lincoln | April 1, 2007 12:06 AM

  

 

 

This is an example of what happens when someone gets so fixated on an idea that they can’t stand to lose an argument over it.

Here’s a tip for the denialist fanatics: Just because a concept is acceptable to YOUR mind doesn’t mean it is actually true. You may be suffering from psychotic delusions.)))

Posted in biology, denialism, scientific, skepticism | Leave a Comment »

PZ Myers fan here!

Posted by Dale Husband on April 5, 2008

I am a regular reader of the blog by PZ Myers, a biologist and associate professor at the University of Minnesota, Morris.

http://scienceblogs.com/pharyngula/

Read the rest of this entry »

Posted in Atheism, Bible, biology, evolution, intellectual, scientific, skepticism | Leave a Comment »

A critical test of common descent (evolution)

Posted by Dale Husband on March 5, 2008

While there are ways to experimentally test the process of evolution, known as natural selection, by mimicking it artificially, ways to test the historical issue of evolution, known as common descent, must rely on making observations and making predictions of the outcome of those observations.Inside the cells of all Eukaryota (plants, animals, fungi, and protists) are organelles called mitochondria. Likewise, inside the cells of plants are organelles called chloroplasts. Both mitochondria and chloroplasts have their own DNA and are thought to be descended from bacteria that took up residence inside the larger cells. In any case, the DNA in those organelles are completely different from the DNA in the nuclei of those same cells.

We can take the DNA of cell nuclei and check them to see if the differences between those of various organisms can enable us for build a family tree of those organisms. The more similar their nuclear DNA is, the more closely related they are. But since mitochondria and chloroplasts also have DNA, we could also take them and check to see if we could build up a family tree that is the same as the one we would build up with the nuclear DNA.

Indeed, there is no reason, if all life was produced by a single recent act of creation, for the DNA of the mitochondria of all animals to be significantly different from each other. So if I was a Creationist, especially of the young Earth kind, I would predict that it would be impossible to make a family tree from mitochondria DNA, or if I did, it would be completely different from the nuclear DNA. But if I was testing the theory of common decent, I would predict that the readings in animals of both their nuclear and mitochondrial DNA would produce the SAME FAMILY TREE in all cases! This would make perfect sense if the mitochondria and the rest of the cells have been evolving together ever since they first came together over a billion years ago.

Mitochondrial DNA is already used in forensics to determine who the mother of a child is, while nuclear DNA must be used to determine the father of that same child. This would only be an extension of that function, since the parents of the child must be of the same species, or at least very closely related, to even produce offspring at all.

Posted in biology, evolution, scientific | Leave a Comment »

Why the term “species” should be abolished

Posted by Dale Husband on January 25, 2008

The term “species” has a clear definition in biology: a group of organisms that breed only among themselves and do not breed with members of any other group. Thus, as far as we can tell, humans are all members of the same species, Homo sapiens. 

The lesser black backed gull and the herring gull of Britain, however, act like separate species, yet are connected to each other by a ring of subspecies that extend all around the Northern Hemisphere and can interbreed with their neighbors. So in the sense I stated above, the definition of species breaks down.

The issue of species also fails when asexual life forms are considered, including bacteria, most protists, a few populations of beetles, a population of lizards, and an entire class of rotifers called Bdelloidea. The lizards, beetles and rotifers in question are all females, while among the single celled organisms the issue of gender identity is meaningless.

Suppose we have a population of 400 asexually reproducing lizards which are genetically and physically almost identical. One at a glance would assume they are members of the same species. But because the lizards do not swap genes via sexual reproduction, they would just as well be considered 400 separate species.

The issue of “species” becomes meaningless when one considers extinct organisms that are dug up as fossils. Fossils cannot breed among themselves and so the designation of certain fossils as Homo hablis, Homo egaster, and Homo sapiens is entirely arbitrary, based on the structure of the fossils and nothing more. The same is true of all other organisms in the fossil record, including dinosaurs.

I would therefore argue that the term “species” is really useless and should be abolished completely, because it is a source of unnecessary confusion.

Posted in biology, evolution, scientific | Leave a Comment »