The Camera Obscura
The video on the right shows people making a Camera Obscura in a small room. They had to make the room fully dark by placing black sheets to the window. They then had to cut a small hole in the sheets to let a little bit a light through. An upside image will form on the opposite side of the wall because the light travels in straight lines. |
|
The image on the left explains how light goes through a mirror and reflects of it to make the tree upside down. The light from the top of the tree shines into it and it travels down to the hole in the box. The light from the bottom of the tree is been shown at the top of the wall which makes the other tree upside down. |
History of the Camera Obscura's
The first Camera Obscura that was made ever by anyone was during 470-390 BCE. Mozi was the person who made it and he found out that the image in the Camera Obscura was upside down since light travels in straight lines. In the 6th century a mathematician called Byazantine-Greek used a type of Camera Obscura in one of his experiments. As time went on Leonardo Di Vinci published the first clear description of a Camera Obscura in around the 1400's. As you can see the Camera Obscura has been around for a long time and right now people are still making them and also using them! On the right, there are some pictures of Camera Obscura's during the early 18th century and after that. Abelardo Morell Abelardo Morell was a famous person for creating Camera Obscura's in lots of places in the world. He's been making Camera Obscura's for a while now and people look up to him because his images are really good. On the right are some pictures that Abelardo Morell made a while back. My Camera Obscura I made my Camera Obscura today by using the following items: - A tube (big and small) - Foil - Masking tape (strong one as well) - Greasing Paper - Pin
I was really happy with my Camera Obscura, because this was the second one I made. The pictures that I took of the last one didn't upload to the Ipod's camera roll and comparing this to the first one I did the second one was way much better. The small tube was stuck securely to the big tube and when I look into into light with the Camera, I could see upside down images (basically reverted). On the right are some pictures that I took inside my Camera Obscura to prove that it works. When you look inside the Camera Obscura you see upside down objects because light travels in straight lines which makes the image shown at the top. |
|