One of the ways to view the eclipse is to look at the eclipse through
a safe viewing filter. These filters can
come in the form of personal viewers shaped like that of spectacles.
The filters could also be modified for community-viewing by fixing/taping
the viewer on one end of a large tubular box and then looking at the
eclipse through the other open end.
Look here for other ideas on using the filters
Another way to view the eclipse is to make a pin-hole camera. This can
be made using a tubular box open at both ends. While one end is taped
with an opaque material and a small pin-hole is made in the centre,
fixed on the other end is a translucent piece of paper. When the pin-hole
is pointed in the direction of the sun, an image of the sun is formed
on the translucent surface at the other end. The longer the tube, the
larger the image of the sun.
Look here for other ideas on using a pin
Cover a mirror with a sheet of cardboard with a hole of about 1cm cut
into the cardboard. Point the mirror such that the reflection of the
sun falls on a wall or on the side of a building, and watch the eclipse
as it happens.
Look here for other ideas on using a reflector
for viewing the eclipse
in designing a device for the safe viewing of the solar eclipse. The
best of these designs will be honored with 'Crescent on the Sun Award'
on the 10th of August, one day before the day of the total eclipse.
details, look up design a solar viewer