Reflection- Hao Xian says..

Pre-camp reflections

Read the introduction, objectives and theoretical background to the project and then answer the following questions:

•      What interests you about this project?
•       What do you want to learn by doing this project?
•       What questions do you have about this project?
•      What do you personally want to have achieved by the end of this project?

Reflections on Plenary Sessions

For each plenary session, consolidate your learning by answering the following questions:

•     What are your key learning points?

“Earthquake research on Coral Reef of Sumatra” by Prof Kerry Sieh

-  Sundra megathrust is a trench that is located off the coast of Sumatra, where the Eurasian plate subducts the Indo-Australian plate.

-  The subduction zone is not always smooth, therefore it may get locked. Overtime, pressure build up there and when the earth could no longer contain the pressure, it is suddenly released. This sudden released of energy is what we called earthquake

-  The subduction of the plate might cause an island to sink slowly over a long period of time, this is due to the subduction of the plate. After an earthquake occurred, the island rises. (e.g. Nias Island)

-  Sedimentology refer to the study of sediments. This includes the layer, the grains, the pattern between two sediment deposit.

-  There are two way to measure earthquake history

(1)  GPS measure tectonic deformation

(2)  Uplift and subsidence using coral

1)  “IT for Animation by Prof Seah Hock Soon

Types of animation

1)  Stop-motion

2)  2D Animation

3)  3D animation

 Mathematics in Movie

-  Geometry

-  Point, lines, surface and solids

Linear Algebra

-  Vector Space

-  Rotate and move character

Calculus

-  Limits function, derivates and integral

-  Help light up the scene

Law of physics

-  Dynamic of fire, water and fabric movement

Ambient Lightning

l= k_al_a

Directional Lightning

l_d=k_dl_pcos(-)

Specular Lightning

l_s=k_sl_pcosⁿ_a

“Innovative breakthrough in Nano-Science and Nano-Technology”

- Smaller size for a fixed volume = larger surface area

- Material came together to reduce system energy to make it more stable. As a larger object means, lesser surface area.

Nanotechnology

Nano material with ten times the strength of steel and only a small fraction of weight

- Carbon nanotube

Shrinking all the information hosted at the library of congress into a device the size of a sugar cube

-  Quantum dots

Detecting cancerous tumors when they are only a few cells in size.,

- Nano particles

Natural nanotechnology 

Bio mineralized Fluorapatite gives unique mechanical properties to the shark teeth

•      What new questions do you have about the topic?

No. I got no new question.

Reflections on Applied Project Challenge: What have I learn?

Material Science

Today, I learn that the arrangement of atom affects the physical properties of the material. One example of it is Carbon. The two form of pure carbon consist of diamond and graphite. Because each carbon atoms of diamond is link to four different carbon atoms in a 3D shape, it is much harder than graphite, which carbon atoms is bonded in a single plane with weak-bond between each plane.

Carbon-60, also known as “Bucky ball” for it’s shape, is a extremely stable form of carbon. It is shaped in a ball and it’s curves are formed through hexagons.

Composite material

-       Use of natural material to create composite

-       Two or more material combine together

-       Consist of properties better than independent material acting together.

Component

-       Fibers (main part) – hold the whole structure

-       Matrix – protect from external damage, transfer and distribute applied force, hold the whole structure together

-       Fillers (optional) – further enhanced the properties of the material

Types of composite

-       Particle-reinforced –Fibers in a form of particles, spread whole structure

-       Fiber-reinforced – Use cloth to form the fiber

-       Structural – reinforced the direction of the matrix

Why?

-       Lighter

-       Stronger

-       Favorable properties

-       Relatively easy to shape

Tensile Stress, Strength and Strain

-       Stress is the instantaneous load applied to the specimen divided by its cross sectional are before any deformation.

-       Strain is the change in gauge length of a specimen divided by its original gauge length.

-       Ultimate tensile strength is the maximum engineering stress, in tension, that may sustain without fracture.

Ductility and Toughness

-       Ductility is a measure of a material’s ability to undergo appreciable plastic deformation before fracture.

-       Toughness is a measure of the amount of energy absorbed by a material as its fractures.

Scanning electron microscope

Use to see object smaller than 1 micron.

Component: Electron Gun à Condenser Lens à Scanning Coils à Stigmates à Probe Lens a Sample

Reflections on Applied Project Challenge: Your Accomplishments

• Discuss how the project has deepened your understanding and broadened your awareness of the selected discipline.

Learning material science is just not about the subject, but it is also about the society. We learn material science is not only about the career we want to pursue, but it is also 

• What do you now understand about this discipline that you were unaware of at the beginning?

• Describe how what you have learned from doing this project can be connected to what you are learning at school.

• Describe how you can apply what you have learned from doing this project.
•  At the end of the project, what new questions do you now have?