SKU 93233
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Page 8
#2 A Telescopic Magnifier
If you set the position of the Objective Lens (08) using the mark on the Rod
(16) as discussed in step 3 on page 7, the telescope is set for a focal length
that will focus on astronomical objects. However, if you position the Objective
Lens (08) farther from the Diversion Lens Eyepiece (06), you will set the
telescope for a focal length that is much shorter.
To make a Telescopic
Magnifier
1.
Insert the Objective Lens (08) into
the very end of the Body (01) at
the end with the decorative
covering.
2.
Insert the Diversion Lens
Eyepiece (06) in the other end.
The Telescopic Magnifier is best suited for looking at objects that are only 1/2
to 2 meters distant (approximately 1/2 to 6 feet).
The distances of the Objective Lens to the Eyepiece and the Objective Lens to
the observed object are “inversely proportional”. That means as one gets
larger, the other gets smaller in some mathematical relationship to each other.
When the Objective Lens was midway in the Body to make the Galilean
Telescope, we could call the small distance from the Objective Lens to the
Eyepiece distance “d”. We were able to focus on a distant object, like the
Moon. We can call that long distance to the Moon “D”.
With the Telescopic Magnifier, we increased the small distance “d” to the end
of the Body, so let’s call the new small distance “d+”. Now the distance to the
observed object is much smaller. Let’s call it distance “D-”.
So we learn that “d” and “D” are inverse to each other. As “d” became “d+”, “D”
became “D-”. Through observation, we can learn that they are also
proportional, that means the differences have a mathematical relationship.
This mathematical relationship shown by telescopes of various lengths and
objects of various distances opened the door for thinking about all sorts of
mathematical relationships in nature; and helped generations of inspired
thinkers create the foundations of modern science.
Telescopic Magnifier
distance “d+”
(08)
(06)
