Updated February 14, 2004
Science Teams
Two stages of teamwork will be used to conduct this project. This is designed
to involve as many students as possible, and to model how
scientific research is done.
First Stage
All members of the class should have read the page on How
to Use Your FM Radio to Detect Meteors the previous night. Describe the
responsibilities of the 6 teams listed below. Divide your class into
the 6 teams formed in the radio listening activity. You can ask if anyone is
interested in switching teams if they are particularly interested in the tasks
of another team.
The task of each team is
described below, each with specific responsibilities. Activities will involve a
combination of group activities and individual tasks. The
estimated time for each group to finish these tasks is two days.
Teams and Their Responsibilities
Resource material for each team can
be found by following the links at the beginning of each team description.
- Timing. Research what
is involved in coordinating the time to a standard that will allow data to
be compared between schools using the Sky Scan meteor observing system. What
is Universal Coordinated Time (UTC)? What are time zones? How does Mountain
Standard Time relate to Universal Time? Test the clock on the classroom
computer for accuracy. Compare the clock time on the computer with a
standards based clock from the Internet.
- Receiver. Responsible for
ensuring that the receiver is set to the proper settings so that
observations will occur properly. This group should understand the
difference between FM and AM signals from the radio
listening activity. Determine a
clear frequency with no local station and one that matches with a distant
radio station as per the radio station finder page.
- Antenna. As a test
problem, the Antenna team will design first a folded dipole antenna and then
a 6 element Yagi antenna by calculating the dimensions of pieces for each
type of antenna using the information on the How
to Build an Antenna page. After the Frequency team
has recommended a clear frequency and a distant radio station the Antenna
Design Team should use their learning to design an antenna for that
frequency.
- Software. Learn about
how the sound card is used in this project to sample data from the FM
receiver and how Radio Sky Pipe (RSP) is used to record the data.
- Data. This team will render
the data into a form suitable to be sent to Sky Scan Central for posting to
your school results page. They will also develop different ways of showing
data for reporting to the rest of the class.
- Web Heads. Use the Internet via the
meteor section of the Links page to
learn more about how radio meteor detection works and work being done around the world on radio meteor detection.
Second Stage
Once the teams have completed their research and studied their area of
responsibility, have each team report back to the class as a whole what they
have learned from their research.
Split the members of each team up so that new teams are formed
with representatives from each of the First Stage teams. The purpose of these
teams is to make predictions and test them against the actual results of meteor
observations that will be made using the class's FM radio observatory. Use
material at the University of Ghent website to make predictions about meteor
activity during a specified period of observation using your school observatory.