what is Pinhole camera and how it's work and use of pin hole camera.
what is solar eclipse,safest techniques for viewing solar eclipse.
also watch on
https://www.youtube.com/watch?v=8kPuxd4vRtE
2. Pin hole camera
• Form image without a
lens but with a tiny hole
• Projects an inverted
image on the opposite
side of the box.
• Rely on the fact that
light travels in straight
lines
3. We can make a
camera at home
without lenses that
can form image.
4. Have you heard about
one of the sky's most
awesome shows:
Solar eclipse
5. A solar eclipse happens when the moon comes in front of the
Sun as seen from the Earth.
