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Jumping Hair Gel or Sticky Maths

May 17, 2011

Eurovison 2011

Here are JEDWARD, the ex X-Factor, UK,

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identical twin contestants who have morphed into super

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hair-gelled stars of Eurovision 2011.

Jumping Hair Gel, there is a lot of maths in hair products!!!!!

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HAIR GEL SCIENCE

  There are all sorts of instruments for testing hair gel.

 It must be tested so that the same product is produced each time.

  This piece of equipment tests the ‘stiffness’ of hair gels. You can find a lot more hair product test equipment at the manufacturers.

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The hair gel and mousse market is worth $US 581 million in USA alone.

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  Hair gel contains polymers (long chain molecules) and alcohol. The alcohol dries off leaving the polymer clinging to the hair strand which consists of  long stands of proteins. The hair gel seals in the moisture making the hair firm. 

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This piece of equipment tests the stiffness of hair gel on hair. Cosmetic chemists make up the product formulas, test the products and produce graphs like the one below.

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Note: Hair gel becomes more floppy in humid conditions. RH is relative humidity.

You will find this graph and more information at the Styling Technology website.

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HAIR GEL MATHS

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You can see from this early photo that Jedwards’ hair is growing fast.



So, mathspigs, when will their hair be taller than Jedward?

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We can work it out!

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Jedward Height (according to Jedward) = 5ft 11 inch = 180 cm

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Measuring Jedward on the Left in photo above:

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Jedward Hair Height in pic= 1.7 cm

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Jedward hairline to chin length in pic = 3.2 cm

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Jedward hairline to chin in real life = 19.1 cm*

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Jedward hair height in real life = x cm

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*This measurement is the 50 percentile or median of hairline to chin measurements for adult males.

Jedward hair height = 10.1 cm

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Jedward Height = 180 cm

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When will Jedwards’ hair be taller than Jedward?

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We must know something about hair growth.According to Tom Dawson of Procter & Gamble, the hair growth cycle for young, healthy scalps,involves  hair typically growing for three years then stopping  and remaining dormant for three months. You’ll find more information at the Happi website (Household and personal products industry)

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Hair growth rate = 1.25 cm per month

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But hair grows on average only 11 out of12 months:


Assuming Jedwards hair just keeps growing

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and hair gel just keeps getting stronger then

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Jedwards hair would be as tall as Jedward

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in 12 years time!!!!!! 

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Ahhhhhhhh!!!!!! That’s spooky.

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One comment

  1. […] Comment! Eurovison 2011 Here are JEDWARD, the ex X-Factor, UK, . identical twin contestants who have morphed into super . hair-gelled stars of Eurovision 2011. Jumping Hair Gel, there is a lot of maths in hair products!!!!! . HAIR GEL SCIENCE   There are all sorts of instruments for testing hair gel.  It must be tested so that the same product is produced each time.   This piece of equipment tests the 'stiffness' of hair gels. You can find a lot more hair … Read More […]



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