Tuesday, October 18, 2011

Blog Post 10: SEM Image

Post an SEM image of your item explored by your group.

Nano Conference Info

Consider going to the nano conference, register before Nov 4th.

More info and registration at: http://www.nano.umn.edu/workshop2011/

Blog Post 9: Intro to Invention Project

Begin to collect thoughts on a Nano invention or innovation. Choose a topic/idea and post this. Also decide on a partner or group and post who is in this partnership/group.

Blog Post 8: Applications

Find 10 nano-applications of interest to you. Post a brief description and a link for more info. For each application, explain the "nano" part based on the descriptions of what makes nano special from the nano.gov website: http://www.nano.gov/nanotech-101/special

Tuesday, October 11, 2011

Blog Post 7: Diffraction Experiment with Simulation

Utilizing the difrfaction slides and laser pointers address the following questions.

1. What is the 4 patterns printed on the slides? Somehow draw and post this pattern on your blog, and explain how you arrived at this pattern.

2. Determine the distance between the line patterns on the slides, and how thick the lines may be based on your changing of the simulator to duplicate the pattern you measured.

3. Setup the light wave simulator to simulate the patterns on the 35 mm slides. Grab a picture of these simulations and post them for each of your patterns.

4. Which light can measure smaller things, red light or green light? Post an image of the simulator demonstrating this.

You may not be able to match the simulation perfectly to your measurements, but you certainly can make a judgement on a size range of the lines.

Blog Post 6: Good Nano Websites

Develop a list of at least 10 good Nano websites. Get two types, one of a general nature, and one that is focused on your interests.

Tuesday, October 4, 2011

Blog Post 5: Wave Interference Simulation Activities

Blog Post 5

1. Measure the wavelength of two drops of different amplitude, leave frequency constant.

2. Measure the wavelength of two drops with different frequency, leave amplitude constant.

3. Explain your results for Question 1 and 2.

4. Introduce a second faucet for the next set of questions.
- measure the wavelength of the two drips, in cm
- then measure distances from each drip(red dots) to the 6 constructive interference points (yellow dots) and report these values, cm
- explain the observation you have on the distance comparisons to the constructive interference points to the wavelength of the water wave.