Friday, 12 December 2008

Scientific Questions and Answers

Scientific Questions and Answers

Many scientific questions are currently being asked or have recently been asked. Some of these questions have answers and the answers have already been found or at least been partially been found. A current example of a question that seems to have a positive answer is “can a vaccine against cervical cancer be found?” A vaccine does seem to have been found and is being administered to girls in schools and colleges even as we speak. Another example of a current question that science addressed successfully was “can a process be found that will turn wheat into a source of fuel? A process of turning wheat into fuel has been found but with seriously harmful consequences for food production.

There are also scientific questions that are being asked currently that have not yet been answered satisfactorily however are believed will result in desirable answers. Let us examine some of these questions. “Can a vaccine be found against HIV/AIDS?” Much research and money is being poured into this project and treatments and medications have been found such as anti-retroviral drugs that slow down the establishment and spread of AIDS in an infected person. Nevertheless at present, no vaccination has been found. There is certainly hope that a vaccine will be found sooner or later.

Perhaps the reason many scientific questions have not yet been answered is that the research techniques available at present are not sophisticated enough or maybe the technology needed for the research has not been developed yet.

Finally there is a set of questions that are unlikely to be answered with a high degree of certainty. An obvious question that comes to mind is “will the universe expand forever?” Firstly I would like to analyse this question in terms of the distinction between philosophical and scientific questions.

Certainly we can write this question as a statement, “The universe will expand forever.” This can form our hypothesis and has a true or false answer. So this set of criteria seems to be met. However, in terms of the distances involved as well as the time involved, both which are so great as to be beyond human understanding, direct investigation of the hypothesis, “the universe will expand forever.” is not possible. All that can be investigated meaningfully are the conditions that will result in the universe expanding forever and the likelihood of those conditions existing in the universe.

In the realm of neuropsychology things could be even more complicated because some of the so-called scientific questions that are put forward in this discipline could also belong under philosophy. The neuropsychologist Oliver Sack has been researching some extraordinary cases of brain damage where our very beliefs in reality are challenged. Cases like “the man who mistook his wife for a hat”. In “the man who mistook his wife for a hat” a professor of music displays very peculiar symptoms. In this case the professor was able to recognise all the parts of a composite structure like a flower and its stem but could not integrate the parts into a whole. For example, when the professor was asked to describe a long-stemmed rose in the hand of his doctor he said the thing the doctor held seemed to be a long tube attached to some sort of pink inflorescence. Once the professor was allowed to smell the flower he was able to identify the rose immediately.
What causes this kind of illness and how to treat it seems to be way beyond our understanding.

Thursday, 4 December 2008

Scientific Questions and Philosophical Questions

Scientific Questions and Philosophical Questions

It is a human condition to ask questions. And there are many different types of questions that can be asked. Some questions have short and simple answers, some questions have complex answers, some questions have many answers and some questions have no answers at all. In this discussion I will explore two types of questions that are of concern to scientists namely scientific questions and philosophical questions.

To start this discussion I will look at some examples of the two types of questions that will be under our microscopes. Let us start with the question “does water cool uniformly?” and compare it with the question “why is there life?”

We will start with the first question: “Does water cool uniformly?”. Is this a scientific question or not? First let us be clear what the cooling question means. To start with for water to cool uniformly it means that water cools down at the same rate when it starts cooling, in the middle of the cooling process and when it approaches its lowest temperature.

A good place to start is to ask if the question in focus can have a definite answer that can be agreed upon. Let us look at our question on cooling. "Does water cool uniformly?" Well, it either cools uniformly or it does not cool uniformly. In other words we can say "water cools uniformly" is either true or it is false. So our question on cooling seems to have a clear and precise answer.

The next part of the process is to consider whether the question “does water cool uniformly?” can be answered scientifically. Firstly we should try and write the question in the form of a statement. – "water cools uniformly". When we write the question this way we can see that this statement is true or false. It is this statement that can form the scientific hypothesis. Secondly to decide whether the question can be answered scientifically we need to be able to construct a test or an experiment that will prove the hypothesis true or false.

In summary then, to decide if a question is scientific we need to:
* A scientific question should be able to have a true or false answer.
* A scientific question should be able to be put into a statement that will form a hypothesis.
* A test to prove a hypothesis is true or false can be devised.

We will now consider a philosophical question. “Why is there life?” This generally is recognised as a question that has several possible answers and each answer is likely to bring up many debates. So we cannot say there is a clear precise answer. However, a religious person may argue that there is a clear and precise answer – the existence of God. That person may even go further and suggest an hypothesis, “There is life because God exists. But, what test can be devised to prove this hypothesis true or false?

In summary a philosophical question will:

* Have several possible answers
* The answers will be complex consisting of many parts.
* They are not in general able to be put into a statement that can form a hypothesis, but
Even if they can be put into a hypothesis no test can be devised to prove the hypothesis true or false.

Questions

Identify 3 simple scientific questions and explain why they are scientific.
Identify 2 basic philosophical questions and explain why they are philosophical.