important to remember where and how to see it later.so we have to know
its location.we cannot tell about a star,like near my house or my
school etc..a little knowledge of trigonometry ad geometry can make us
master in it.
Here iam going to discuss about creating a THEODOLITE which has a
major use among sky observers,in astronoimy to locate and mark the
position of celestial bodies.so the construction begins: needed objects:
1.2cd's
2.one 50 cm pipe
3.color pens,pencils,markers
4.cardboard
5.small stick
6.drawing pins/safety pins
Lets work on it.1st take the 2 disks and with the help of a
protractor/pro circle mark 0-360 degrees on both Cd's,better try to be
maximum accurate.use appropriate pen or pencil or marker,we need not
want the markings to erase,means use a permanent marker.now take a
small sheet of card board or wood,place one of the disk's on it and
glue it firmly.now place a stick on the center of disk which can
rotate,glue it wisely.now attach the 2nd disk laterally,perpendicular
to the 1st disk,on the stick.(better to pin it using a nail
pin),extend the pin through the center of the 2nd disk.attach the
small pipe to its end,so that it too rotates.The theodolite is ready.
I had explained in the most condensed way,easily for each youngsters
can understand,but may lack many things.
remember,once you got the idea,modify the instrument with the way you
want.(for example: creating a stand for the apparatus,replacing the 50 cm small pipe with a telescope etc...)
marking of North,East,West and south will make your observations more
easier to mark and study,a permanent space to install the apparatus in
your room or near the windows or upstairs would help you for a long term research.