1. Department of Visual Design
Golden
Ratio
Department of Visual Design
Juhee kwak, JangMi Sung

2. Golden Ratio Introduction
Products for thousands of years, loved mathematics and geometry,
the golden ratio
Throughout history, the ratio for length to width of rectangles of has been considered the most pleasing to the eye. This ratio was named the golden ratio by the Greeks.
The Golden Ratio (or "Golden Section") is based on Fibonacci Numbers, where every number in the sequence (after the second) is the sum of the previous 2 numbers:
1, 1, 2, 3, 5, 8, 13, 21, ...
We will see (below) how the Fibonacci Numbers lead to the Golden Ratio:
Φ = …

3. Golden Ratio Introduction Physical attraction depends on ratio.
It doesn’t only include body but also face rate.
Our attraction to another person's body increases if that body is symmetrical and in proportion. Likewise, if a face is in proportion, we are more likely to notice it and find it beautiful.
Scientists believe that we perceive proportional bodies to be more healthy. Leonardo da Vinci's "Vitruvian Man",  showing the golden ratio in body dimensions
Leonardo da Vinci's drawings of the human body emphasized its proportion. The ratio of the following distances is the Golden Ratio:
(foot to navel) : (navel to head)Similarly, buildings are more attractive if the proportions used follow the Golden Ratio

4. Successful Application Example
Design iPhone 4/4S
Apple uses gold rate in hardware design, take for example the iPhone4 . The shape of the iPhone 4 is a Golden rectangle inside with details to follow this rule. Golden ratio is also found in the placement of the headphone jack, antenna nearby waves, micro greens and clusters camera / flash behind the machine.

5. Successful Application Example
New Twitter Design
Twitter’s Creative Director Doug Bowman illustrates how the #NewTwitter design creates the Golden Ratio.

6. Unsuccessful Application Example
A Figure Photo
A photo has also golden rate. But, some picture appear other camerawork instead of golden rate for own atmosphere.

7. Department of Visual Design
Thank you
Department of Visual Design
Juhee kwak, JangMi Sung