Hi there! I'm a grade 10 student doing a science fair project on optical illusions, and how they affect different kinds of people. =) My partner and I could still use a lot more people to do our experiment. We could especially use left-handed people. x3 It's a bit of reading, but if you could spare a few minutes, we would be very grateful.
There are 5 optical illusions, and basically you do each one and post your results, along with a little form. Please be honest.
FORM:
Gender:
Age group: The 4 groups are: 6-10 years, 11-14, 15-18 and 19+.
Left-handed or right-handed:
What was your result for illusion-
1.
2.
3.
4.
5.
THE ILLUSIONS:
1, 2 and 3. http://tinypic.com/jrup3p.jpg (Don't start until you finish reading this section)
These 3 are pretty straightforward. For number 1 and 2, it is possible to see more than one image. Just tell me what you see first. For number 3, the green side can appear on either the front or back of the cube. Tell me which you see first. Now you can look at the picture. =)
4. This is a picture of a bunch of beans. Somewhere in the beans, there is a human face. NOTE: You must time yourself on a stopwatch or something as you do this. If you don't have one and can't find another accurate way to time yourself, skip this one. Okay, so start the timer as you click the link and see the pic. When you are sure you have found the face (it'll be obvious), stop the watch and tell me your time. ALSO, if you have not found the face after 1 minute, click this link to reveal a hint: http://tinypic.com/jrv1it.jpg DO NOT READ THE HINT BEFORE 1 MIN. If you do, it's obvious where the face is and your results are not helpful. ;_; If you find the face before 1 minute, check the hint to make sure you're right. You may now begin, and remember to time yourself!
http://tinypic.com/jruryt.jpg
5. Last one, I promise! http://tinypic.com/jruvmd.jpg With this, close your left eye and look at the + with your right eye. Then move -slowly- toward the screen until the circle dissapears. If the circle is already gone, move backwards slowly until it appears again. Just do this until you're pretty sure how close/far away you need to be to the screen until the spot disappears (the exact spot, or close to it). Now the hard part is you have to get a ruler or tape measure and measure the distance from your eyes to the screen. ^^; Or you can get someone else to do it. Anyways, I'd prefer the distance in centimetres, but don't worry about it, if you give me something else I can easily convert it.
And, well I think that's all. A huge thank you in advance to anyone who helps us with this! ^___^
Also, if you know of any good websites that have information about why illusions work the way they do or anything like that, please post them. Preferrably if they are easy for a high school student to understand, but if not I will try to figure them out anyways. =)