Gently press a few slightly-spread fingertips into a friend's back, without telling them how many fingers you are using.

Ask them how many fingers you're using, and chances are they will get it wrong.

Why is that? Grab a willing volunteer and we'll find out...

Step 1: Equipment Required

Squeeze your earlobe. Squeeze it hard. That doesnt really hurt, does it? Now try squeezing just as hard at the top of your ear ... ouch!

The nerves in your skin are spread out differently in different parts of your body. This activity will show you just how differently.

You need a volunteer who is not too easily embarrassed (if they are feeling really cooperative, they could be wearing shorts & tee-shirt to expose as much polite skin as possible), two full-size pencils, an elastic band, a ruler, and an outline of a body. Any simple silhouette will do, as long as you can write on and around it.
Great,now I have dots all over me.
YAY Connect the dots time!!! IT'S A DOG!!!
If I squeaze the top of my ears I can hardly feel it, but if I squeeze my earlobes it hurts, is there something wrong with me or do camels have a different nerve system.
There's nothing <em>wrong</em>, as such.<br/><br/>You're standing the wrong way up.<br/>
Wow, nice theory but how do I <em>stand</em> the wrong way up?<sup> I've heard of standing on your head but it's really quite painful with the souls of your shoes driving into your scalp... </sup>Oh well.<br/>
Well, when I handstand, my <em>soul</em> always drives according to the posted speed limit.<br/>
Look out for those floating Altoid Tins.
Are you a teacher? ..You might also want to do fake pokes, with only one point. I think that the knowledge that they are being poked with two points may subconsciously make them feel two.
True. I generally poke them from behind without saying how many fingers I'm using.
hehe, you said "I generally poke them from behind " ok i'm so immature.
Lol... I so want to make a comment on the wrongness of that but I can't because he's married XD
Thats what she said.
And a quick edit later...
Ewwww... Grab a volunteer? Lol sorry I could resist that one.
Although i havnt tried it yet, id suggest doing this along with the Human cutout instructable, it would make it easy to map everything, and create a larger space to do it in

About This Instructable




Bio: The answer is "lasers", now, what was the question? If you need help, feel free to contact me. Project previews on Tumblr & Twitter: @KitemanX
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