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Where is it, and what can we do with it?

Nano & Nature. Where is it, and what can we do with it? . Questions. 1.) Can we find examples of nanoscale science in nature? 2.) Have scientists and engineers used these examples to make products that are currently available?. Answers.

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Where is it, and what can we do with it?

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  1. Nano & Nature Where is it, and what can we do with it?

  2. Questions 1.) Can we find examples of nanoscale science in nature? 2.) Have scientists and engineers used these examples to make products that are currently available?

  3. Answers 1.) There are many examples of nanoscale science in nature. We will go over a few soon. 2.) Scientists and Engineers use nature for guidance and inspiration all the time. This process is called Biomimicry.

  4. Biomimicry • “The examination of nature, its models, systems, processes, and elements to emulate or take inspiration from inorder to solve human problems.” • Basically scientists see something really cool in nature and try and copy it. • Lets get to some examples!!!!

  5. Example 1: Gecko’s Sticky Feet • Every wonder why Gecko’s are such good climbers? • They have thousands of Nano-size hairs that help them stick to smooth surfaces using Van der Waals forces. • Scientists are using biomimicry to create “Gecko Tape” that will be stronger than tape we use now.

  6. Example 2: Nasturtium Leaf • Certain leaves have a particular surface structure that makes them difficult to get wet. Water beads up into little droplets due to nano-size ridges and wax coated hairs. This phenomena is called the lotus effect. • Engineers are making clothing with nano coating to protect from stains.

  7. Example 3: Butterfly Wings • Have you noticed that the colors on a butterfly wing change based on the angle you look at them? • This happens because the wings are made up of nano-thin layers that cause light to reflect differently • Scientists and engineers are using this to hopefully develop a new type “intelligent” solar panel and iridescent materials

  8. Example 4: Shark Skin • Every wonder how sharks swim so fast? The various size/shapes and texture of shark skin at the micro and nano levels reduce drag and make sharks very fast in the water. • This idea has been used to create reduced drag suits for athletes.

  9. Example 5: Toucan Beaks • Toucans have very large beaks for the size of their bodies. The structure at the nano level makes Toucan Beaks incredibly light and strong. • Engineers and Scientists developing similar structures to make stronger, lighter materials.

  10. Your Challenge!! • In groups (3 or 4), come up with an idea for a new product using one, or a combination the previous examples. You must present the following. • Come up with a name for your product. • What does your product do? • Explain how your product helps solve a current problem. • Develop a visual aid for the class presentation. (A drawing of sketch, a model, etc.)

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