Tuesday, February 12, 2008

Keeping Up While You're Out

Good morning, Julie. I hope you are feeling better. One of the nice things about having this kind of project is that you can continue to work on it at home - regardless of the time on the clock (unlike school).

Your next step is to print a copy of the paper that you chose to read and start reading it. I have no doubt that you'll find this challenging - but I also have confidence that you'll be able to sort through the original work and find some surprises along the way. I would like for you to keep a list of questions that come up as you read. I don't expect you to read it all in one sitting. Read a while, ask some questions (post them here), read a little more, post some more questions, etc.

I will be interested to read what you discover and what questions you ask.

7 comments:

th said...

Obviously, you've been studying for the TAKS test with Amy this week! I haven't gotten any feedback from you - remember you need to start reading your paper. I need to have something from you by Thursday (3/20) - especially if you are having any difficulty or questions. Next week (after Easter) will be a time when you have to submit something else, so please don't let yourself get behind!

=] said...

i am doing Radioactive Transformations and the Periodic Systemof The Elements.

I really dont understand what the basic idea of the two different rays involved. i will come ans ask you some time when you get a chance.

=] said...

I feel really stupid because i am having a hard time understanding what this is talking about. I have read it over and over again and i think i am going to take a break tonight but i need some help understanding the graghs in this paper. i will research some more tomarrow on the topic.

julie

=] said...

When these papers were written the first home electronic refridgerator was being put on the market. You cam tell from this that they didnt have near as many advancements in science as we do now. They discovered these particles(alpha and beta) and became interested in finding out whatever they could with what little technology they had.They found out that an alpha ray is formed when a"helium atom with a double positive charge is expelled". A beta ray is formed when only an electron is emitted. They also found out that the elements they were experimenting on couldnt be seperated by thier "usual" methods. We have come a long way in science since then, and we now know a lot more about alpha and beta particles.

julie

th said...

OK - now we need to start figuring out where to go from here. So far, you've looked at radiation, the early work by a couple of scientists interested in discovering more about atoms and radioactivity - we need to decide where to take your research from here.

One of the more modern uses of the research started by Fajans (and something you've indicated you are interested in as a career) is the use of radioactive substances in medicine. So, I can think of at least 2 ways you could develop this into a project (and products) that focus on medicine. You will need to present a paper and a powerpoint at the end of this research, so let me know if either of these appeals to you. If not, maybe we could figure out something that would work.

1. Research and report on the uses of radioactive substances to diagnose and treat diseases such as cancer.

2. Research and report on the development of x-rays for use in medicine (when did it start, what types of changes did they go through, etc.).

=] said...

1. Research and report on the uses of radioactive substances to diagnose and treat diseases such as cancer.

i think, if i understand this rigfht, that i want to do this one.

julie

=] said...

THEY USE THESE RAYS (X-RAYS) TO VIEW THE INSIDE OF THE BODY SUCH AS BONE STRUCTURES. IN THIS PROCESS THEY USE HIGH DOSES OF A RADIOACTIVE SUBSTANCE IS USED TO KILL AND FIGHT OFF THE DISEASED CELL. THE X-RAY IS ABSORBED BY LIGHTER COLORS SUCH AS THE DISEASED CELLS.

JULIE~MARIE