The Dynamics of Existence Part 4/5 Video

Meet Prof. Mehmet Pakdemirli of Celal Bayar University, an expert in applied mathematics in the science of motion, who studies mechanical vibrations and fluid mechanics. Part 4/5
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The Dynamics of Existence Part 4/5 Laura Wells: Each moment almost everywhere on earth, incredible feeds of engineering are being carried out by living creatures, great and small. Today from bulletproof vest based on spider webs to robots they climb like lizards, science and industry are increasingly looking to nature for inspiration. The living world continues to prove an invaluable source of inspiration. Male: In material science, you need to select the appropriate material for a structure. If a structure is designed to fly, it must be both light and strong so material science is an important issue in choosing among many different metals and alloys as well as other materials such as plastics and composites which represent the latest area of research in material science. As Dr. Pakdemirli points out, the selection of the proper material for a given structure is extremely important. Durability for example is maybe the main issue in developing a structure such as a building. In nature examining a seashell reveals that even though the shell is hard, there are very small fishers or micro-cracks in the structure but they do not expand as they are inhibited by some very complex mechanisms. Such micro-cracks and engineered materials such as an airplane wing might eventually grow and rapture possibly leading to a plane crash if the wrong material is used in the construction of the plane. Dr. Pakdemirli: Also the material used in the technology is improved model. Many investigate the living organisms like the spider web and the feeders and the micro-structure of the feeders. When you investigate those materials, we can perform better products. For example bulletproof vest cost is produced to inspire from the spider web and the feeders. Male: A developing area of engineering is robotics, the design and implementation of devices that mimic the actions of living organisms. Robotic devices have long that employed in the manufacturing sector of the economy proving useful and assembling everything from automobiles to television sets. However the tasks as they performed are primarily repeated in nature involving a simple range of motion by a stationary machine or robot. To advance their usefulness, the design of robots is becoming increasingly sophisticated but these machines don’t yet approach the flexibility and range of human motion. And robots that attempt to duplicate human actions are still slow in hesitating in their movements because of the issue of balance. Solving this problem is crucial in robotic development but it is proving to be more difficult to master than first thought Dr. Pakdemirli: All creatures have perfect balances and we see that a cat climb freely on a tree. However, we have not yet the design such a robot that perfect balance. But robotics, in improvement of robotics will teach u s an important lesson. We will see that the arts of creatures are much more sophisticated than complicated, the control issues in those systems. We are very much complicated than we thought. Male: Manufacture products are developed by measuring needed dimensions of the product and if its individual components or a parts. I a process Dr. Pakdemirli refer to as static design. Each part has constant shape that is unchanging. Natures on the other hand relies on dynamic creation where the overall system is stable in spite of the growing and changing size and shape of an organisms various components. As an example, he sites the development of a child from a fetus where each organ grows as those the skeletal structure yet through the entire process, the overall system remains stable. Dr. Pakdemirli: Imagine that you build a motor which is very small in dimensions and then it becomes larger and larger. And yet the motor is perform and gets its task that this you cannot do in our technology because you cannot maintain the growth while the engines is so pretty.

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