Each project is worth 15pts towards the hwk score, you can get extra credit
for at most 3 of the 4 projects.
<P>

<H4>Project 1</H4>
From book p.83f, A: Torricelli's Law.  ---
<A HREF="torricelli.html">Additional Comments</A>

<H4>Project 2</H4>
From book p.84f, B&amp;C: The Snowplow problem. ---
<A HREF="snowplow.html">Additional Comments</A>

<H4>Project 3</H4>
From my course notes on page 10: You may need to come in and ask questions
about this one, in particular about physics. 

<H4>Project 4</H4>
Conformal ellipses. This project is targeted more at math and physics 
majors, but also has some interest for electrical engineering students.
The details can be found here as 
<A HREF="conf-conics.pdf">pdf</A> or <A HREF="conf-conics.ps">ps</A> file.

<H4>Rules for all project problems:</H4>
Turn in when you like. A full solution must contain some text that explains 
what you are doing. (Think of the last problem on the first exam). 
You may turn in a partial solution that ends with a 
clear question stating where you get stuck if this happens. 
Then you get helpful hints back and may continue from there. So a pingpong 
may develop and you get several attempts. However, if you do something 
blatantly wrong that you ought to know not to do, then you have `lost
the ball' in the pingpong, and this is how you lose points. Turning in 
a partial solution stating a clear question does not lose points, but buys a
feedback and a continued attempt. Once you turn in the first version of 
a problem, you have to finish it up within 3 weeks. (If I procrastinate 
feedback, this will be extended appropriately.)
<P>
Problems in pingpong should always bear a date, and previous versions should 
stay attached to the newer versions so that when I get it, I always have the
full dialog, with dated contributions. This may require using a stapler...
<P>
You may do projects in turn or concurrently, but doing them concurrently 
will not extend the time. 
<P>
Since I cannot handle everything at the same time towards the end of the 
semester, you must turn in a first attempt at your first project before 
the midterm break, otherwise you forfeit the option of doing projects for 
extra credit. Likewise, if you want to do a further project for extra credit
after finalizing one project, you must turn in a first version within 10 days 
after the previous one. The sole purpose of this regulation is to spread out 
the work somewhat equally over the semester.