Create Your Own Science Toys, Small Hole Projector
Posted: Tuesday, March 24, 2009
by Alex Coleman
http://www.sciencetoy.co.uk
Educational toys are a marvellous way for children to study all about the science going on about them, and building your very own science toys is easy and a lot of fun.
Here are instructions on making a simple science toy which led to the modern camera, this fun science toy is known as The Pinhole Projector.
This educational toy demonstrates the principles of early photography and also the nature of light. To make these excellent learning toys all you require is an empty Pringles tin, some foil or paper, tape, a pair of scissors and a hammer and nail.
This hole will let the light travelling in straight lines from whatever is being viewed into the pinhole projector.
Now, you need to place the plastic lid onto the top of the Pringles tub and tape the two pieces back together with tape, but this time with the plastic lid toward the opening of the 5 cm cut off piece of tube.
The polythene lid, now placed within the cylinder 5cm away from the small hole in the bottom, behaves like a screen for the light travelling through the tiny hole in the tin base to produce an upside down picture upon.
Next Take your foil or paper and wrap it around the tube to make it look neat and tidy and stop the light from entering the tube through gaps.
Now point your new educational toy with the small hole towards a bright strong image like a person on a sun filled day and if you look through the open end you will see an upside down image projected onto the polythene lid.
Why do you think the image is projected upside down?
If light travels in straight lines, light leaving the bottom of an object would travel through the pinhole and end up toward the top of the screen and also the light travelling from the top of an object would go through the pinhole and finish up at the bottom of the screen.
Playing with educational toys helps young kids to learn about the world around them.
This Article has been viewed 1,133 times. (Not updated in real-time.)
No comments yet.We want your comments! If you can read this, you don't have javascript enabled, so you can't use this comment system. Please enable javascript.