Scale Gauge

How could I use a pressure gauage (spring scale gauge) to measure the pressure of hair?

I'm doing a science fair project on the effects of shampoo on human hair...and I wantt to know how i couldd measuree the pressure before the hair breaks (the breakage point)...if youu still don't gett it...here's the linkk of the project i wanna do.
Link: http://www.all-science-fair-projects.com/science_fair_projects/130/1003/162c2841b511c4142a5811ed2134fe69.html
Andd please dont writee youu don't know...cause I dont either!
Thankk you :D

Rather than pressure (compression) the term would be tensile strength (pull til it brakes)

Easy, jut a touch of super glue and attach the hair to the bottom of the basket of the spring scale. gently pull down watching the scale till it breaks.

If you mean a spring scale like you have in the kitchen or bathroom that you put things on, then you need to build a small frame to hang down from.
Find a tall wood box stand it up tall with the long side open. attach your hair to the inside ceiling.
Put the whole set up on the scale with the hair hanging down.
adjust the scale to zero with the box on the scale.
Now pull down on the hair to get the reading just as the hair breaks

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