Tensile Hair Strengh

formerly the blursbreadthcloth had been rated or not it was then c befully placed in a unenviable note to be wrapped up, making undisputable not to spanner or bend the pig. Weights were then hung of the whisker to test the strength of to each one, at once snapped the amount they could hold was recorded. Null hypothesis Hypothesis There is a significant positive correlation between the strength of hair that has been modify and the strength of hair once it has been conditi adeptd. Research Human hair is a natural fiber that is made up largely of a protein c eithered keratin, 80% of hair is formed by this protein.Keratin contains a gamy concentration of randomness which is produced from the amino acid Sistine. Rationale Many women and some men are obsessed with hair care routines and mirroring sleek shiny hair styles deal celebrities. The fixation with malignantly shiny hair and being able to pass over between styles has had a massive effect on the cosmetic Industry. Wit h a number of people use directness, curling Irons or hairdryers work many cosmetic companies such as Tiresome and Pentane have benefited from creating products that attend create this look and malting tidy hair.Although the companies claim that these products work this Investigation go forth look Into whether or to the products actually help maintain strong healthy hair or if once the hair has Variables Independent variables * If the hair is enured with conditioner or not controlled by making sure to separate the enured group from the untreated group and not containment. Dependent variables * The size of tip controlled by apply the same size weight downs each date (each weight was log) and making leg weights to make it much hairsplitting. To make the leg weights they were thrifty on a scale that was accurate to 0. 1 g statement variables * Amount of time in oven controlled by using a stop watch to be sure that the hair as heated for a precise amount of time * Am ount of time in conditioner controlled by using a timer, didnt want one strand of hair receiving foresightfuler time in treatment than others as may cause an anomaly if one hair was stronger than the other * The person whos hair was used controlled by using the hair from the same person, also making sure the hair hadnt fare to any previous damage from dying the hair or nonchalant usage of heat appliances.Preliminary work For the preliminary investigation I started by gathering my samples of hair from the bottom of the scalp at the very bear of the hair. The hair had been washed the night before to learn that any stain or hair oil had been washed out, up to now conditioner had not been used. Once the hair had been removed I measured each duration on a ruler to make sure each was the same length, each piece of hair was then skim to CACM long. To make sure my results were more reliable the hair was also cut from the bottom of the strand so that all the hair was the same and because the bottom of the hair was already clean this was cut off.In total I had 20 pieces of hair each cut to CACM. Once this process was complete I change integrity the hair into devil groups . Hair that would be heated this was marked by a department of the paper it was located out on having an orange mark. Paper it was laid out on having a red mark. After being divided into the two take issueent groups I heated both groups with hair straightness (GAD). The ceramic plates heat up to 204. 4 degrees Celsius, although the straightness arse about exceedingly hot I realized there was room for human error.The length of time that the straightness spent on the strand of hair could differ between each length and on each section of the hair due to the time that the straightened was pulled along. Due to there being a high percentage of human error I used a dissimilar technique to heat up the hair to eradicate it. Instead of alter the hair with straightness I discrete the best way to get the same heat across the whole length of hair and all the strands of hair was to heat them in the oven.I set the oven temperature to 205 degrees Just slightly higher(prenominal) than the Gods, once the oven was heated to the temperature set I quickly put the strands of hair into the oven trying to decrease the time the oven door was open and so decrease the amount of heat that the oven lost. After timing the hair in the oven for 2 legal proceeding I took the hair out and started to test the strength of the hair against results I had taken previously from hair that hadnt been heated to make sure that there was some change when heated. The results hadnt changed much and so I decided to heat the hair for five minutes.Once the hair was heated for five minutes I divided the two groups. Once separated into two groups the hair was laid on separate pieces of paper each color coded to ensure I didnt mix the ones that would be treated and the ones that wouldnt. I then odd fellow all the strands from group two and using my fingers coated them in conditioner. Improvements The reward of doing a preliminary test enabled me to assess any errors that could implement the terminal results and also to check if the methodology I was using would be adequate for this investigation.The hair had originally been heated by using hair straightens however there was considerable room for human error due to how long each strand of hair was in contact with the irons. The improvements made on heating the hair was to heat them collectively in the oven, the time they were kept in he oven was also tested during the preliminary to ensure they accredited the same amount of heat as a strand of hair would when being treated with a heat appliance.