Disappearing Rabbit - My Construction Project
Subject: Optics Topic: Reflection
“Disappearing Rabbit” is a fun and very interesting trick. You show people how Physics can be fun and how fun things sometimes just happens due to physics. At first you basically show people the disappearance of the rabbit. This project must be done very deliberately because it has many details in it and you should be careful about them, but also this is a very fun project to do alsoit entertain other people too.
Materials:
cardboard box
black spray paint
2 handholds
2 sided mirror that fits in the box
duct tape
small toy that would fit into the box easily
2. Then, draw and paint white lines on the sides of the box( you can also use white tape to make the white lines), which will make the box look cool and confuse others with its pattern.
Procedure:
1. First of all we get our Cardboard box and paint it with black paint spray( can be any color or can be covered by something else or not covered at all).Then let it dry.Once it dries decide which sides are you going to cut as doors to your box and mark them.
3. Cut two side by side sides with a frame only with three sides so you can open and close these windows as you want.
5.Place the two sided mirror into the box in a shape where it will make it look like it is empty when you open it. Be careful with hiding the sides of the mirror(can be tricky). Use black cardboard to hide the lines on the sides.
6.Then you can put 1 handhold to each window of the box, to make it easier for you to open and close the windows during the presentation.
7.Then you can put 1 handhold to each window of the box, to make it easier for you to open and close the windows during the presentation.
8.Then you can decorate your box with stickers, wires, symbols and papers.
Presentation:
-During the presentation, first of all you must open the windows of the box to show that it is empty then you can put your hands in the box from the different windows and try to make them look like they touch each other by this you will convince the audience that the box is empty.
-Next close both windows, do some magic movements and act like you do spells on the box, the open the window at the top and put the small toy inside the box( which will stuck in that region because of the mirror that is in the middle of the box.
Then you do the magic tricks again and open both windows for the audience, They won’t see anything and will be surprised, because the rabbit was not there (which stuck in the other half of the box).
Then do some more “magic” and open the top part for the second time and take out the toy you have there and surprise your audience.
Then you explain the principle of the project and how it works to the audience.
You are ready to present...
Principle:
Laws of reflection in a plane mirror;
Angle of incidence should be equal to the angle of reflection
Incident ray, reflected ray and normal line to the surface are lying on the same plane.
Properties of image in a plane mirror.
The image is behind the mirror, it is a virtual image
iImage is the same size with the object and it is upright