Activity
35
Lesson
4
The technology available to all
Another way is to use satellite information system
Global Positioning System (
GPS
, for its acronym in English). This system
can locate anywhere on Earth. It works with 24 satel-
lites orbiting the planet sending signals to devices
called
receivers
GPS
. Here, upon receiving the information, calculated
the geographical coordinates of the place they come from.
E
Aerial photography Tokyo, Japan.
Get organized in teams and with the support of his
teacher perform the following activities:
Cut black card cartonboard
10 × 15 cm. In the center of the card, cut
a square of 3 cm per side. Look through
it presents the image below.
Put your card at different heights
image: first, lay it on top of the page;
aléjenla then 10 cm, 20 cm and then finally
mind to 30 cm.
Describe what they fail to see the image from
each of the heights. According to what
observed in this activity, they discuss in group:
Which of the distances that stood card
could represent an aerial photograph and what
a satellite image?
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