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Friday, March 29, 2019

Height and Feet Measure

THE FEET CAN MEASURE THE HEIGHT


The bones of the feet can tell a lot about a person. What do feet reveal about a person's height? Forensic anthropologists team up with law enforcers to help solve crimes.
Bones of the feet can reveal an interesting fact about an individual. Let's combine math with forensics to see how.

Image result for foot chart sizeImage result for foot to height ratio chart
Aim:  To use forensic science techniques to measure the height of a criminal.

Material:
  1. Rulers 
  2. Metre Ruler
  3. Person
  4. Flat Wall 

Steps:

  1. Get a person that you can do this experiment with.
  2.  Grab your measuring tools, rulers and metre ruler.
  3.  Put his/her back against the wall and use the metre ruler to measure the height.
  4.  Record the height and move on to measuring the foot.
  5.  Lay the foot down on the ruler and measure.
  6. Record the measured foot.

Findings:


Name
Foot  (cm)
Height (cm)
Vann25.4 cm163cm
Lars22.5 cm151cm
Axle26cm 160cm


Divide the length of each person's foot by his/her height. then multiply it by 100. 


Vann 15.5cm 
Lars 14.9cm
Axle 16.2cm



Forgery


Image result for forgery

Graphologists are forensic experts who look at handwriting.

Image result for forgery

Many things can be forged: art works, money, writing, etc

Forgery link

Aim: To Analyse a signature using forensic science.

Image result for forgery


Material:



A pen / pencil
Tracing Paper
Writing paper
A ruler


Steps:

A. Top Of Letter Analysis

1. Sign your name on a sheet of writing paper and get someone else to try to copy it.
2. Place the tracing paper over both signatures and make a dot at the top point of each letter – for both signatures.
3. Join up the dots for both signatures to get two zigzag lines across the signatures. Are the lines the same?

B. Bottom of Letter Analysis

1. Put some fresh tracing paper over both signatures.
2. Put a dot at the bottom of each letter.
3. Join up the dots to make zig zag lines. Are the lines the same?

C. Slant Analysis

1. Put a fresh piece of tracing paper over both signatures.
2. Mark a vertical line down through the middle of each letter (using a ruler), slanting it in the same direction as
the letter.
3. Compare the set of lines for both signatures. 
What do they tell you.

Findings:



You
Friend
Top Letter Analysis
Are the lines the same?

No, a small is almost close, but it is not really.
Bottom Letter Analysis
Are the lines the same?

No, It was not lowered enough around the A's and the G's and are very far apart,
Slant Analysis
What are the slants telling you?

Almost as slanted as the original, slightly further apart.


Conclusion:









Activity : Get someone to try to forge your signature and then try both of these methods to analyse it.

Write up the findings based on the following questions.


  Writing an analysis of a friends forgery.
     



The size of the letters – all big, all small, mixed?

Where they dot the ’ i ‘– over the top or off to the left or off to the right, or not at
all


How they cross their t – straight, angled up or down, where on the t stroke it
is crossed


The slant of the letters (use a ruler) – forward, backward, upright, mixed


Are there breaks in words, or are all the letters in the words joined up


The length of stalks on y, q, p, below the lines – long or short





Thursday, March 28, 2019

Brotherhood: The Completion

The end is near! For our film that is; the production of our film is coming to an end, finally! Currently, now we are on post-production which is editing all our 200+ shots. there have been many challenges over the time that we have been working on this project, ones that we had to push over and do. Though there were limitations on what we were able to do my partner and I are proud of what we have achieved through the course of this voyage in stop motion. There was a lot to be learned and a lot to be conquered; as if solving puzzles after puzzles until you get to the satisfying and gratifying finish that you've been aiming for.  We have experienced and learned a lot from doing and moving forward to this project which I'm sure we will be able to use in the rest of our lives, and a memorable feat that we have accomplished.


Here is the movie:

Tuesday, March 26, 2019

Forensic Science



Image result for forensicsForensics

http://sciencing.com/list-forensics-techniques-6392795.html

1. What is the definition of forensic science?
It is the science for law and civil laws as such. It normally and mainly favours the criminal side during the investigation. Forensic Science analyses the evidence that was gotten in the investigation, like for example blood, fluids, extract, etc.


2. Name 5 different kinds of activities used in forensic sciences and find a picture for each.

Fingerprints
Image result for fingerprints


D.N.A

Image result for dna

Footprints
Image result for footprint

Ballistics
Image result for ballistics forensics

White Powder TestImage result for white powder


3. Name 5 jobs that would use forensics to investigate crime 

Forensic Medical Examiner
Forensic Engineer
Forensic Accountant
Crime Scene Investigator
Crime Laboratory Analyst

Fingerprints

Aim: To look at the different types of fingerprints.

Material: 

  1.   Finger Stamp Pad
  2.   Baloon
  3.   Fingers

Steps

  1.   Grab your Finger Stamp Pad.
  2.   Open it to reveal the pad.
  3.   Take your thumb of any other fingers and push it against the pad.
  4.    With your pigmented finger,  grab your balloon (not inflated) and stamp your finger on one side.
  5.   Grab the opening of your balloon and begin blowing it.
  6.   Once inflated you will now see your fingerprint on "close up".
  7.   Observe and compare.


Image result for fingerprint types

Record the types of fingerprints from those in your group.

Name
Fingerprint 1 ( Thumb)
Fingerprint 2 (finger)
AxleLoopArch
VannWhorlArch
LarsLoopWhorl


Summary of findings:

We learned that fingerprints are different on people; as well as different on other fingers from one person. The arrangement of the fingerprints differ in many ways yet all will contain a shape. Which could be a whorl, loop or an arch.