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Physics Alive is the podcast where host Brad Moser, Ph.D., sparks new life into the physics classroom. He speaks with researchers and textbook authors on the frontiers of physics education, life science and health professionals who use physics on an everyday basis, designers and engineers who learn from the natural world, teachers who employ innovative and active learning styles, and students who want the most out of their education.
Episodes
Tuesday May 31, 2022
Diffraction of DNA and the DNA of my Physics Class
Tuesday May 31, 2022
Tuesday May 31, 2022
In this episode, I talk about DNA: a simple DNA diffraction and interference experiment using the spring from a pen, and the DNA, the structure of my introductory physics class during the spring '22 semester.
Full show notes at:
DNA Diffraction and Interference Lab and/or Demonstration
Figure 1: X-ray diffraction pattern of B-DNA labeled Photo 51 by Rosalind Franklin.
Figure 2: Interference pattern from a pen spring. Pattern produced from a red diode laser passing through the spring from a pen. Projected on a screen 8 meters away.
Here are the articles I referenced about DNA interference and diffraction experiments:
X-ray diffraction and DNA optical transform from the ICE (Institute for Chemical Education) Online store at wisc.edu
DNA of Brad's introductory physics class (Spring 2022)
Star grading system:
Here's the entire syllabus for the spring 2022 semester of PHYS 105: Survey of Physics II for life science majors:
Specifications grading:
- "Specifications Grading" by Linda Nilson
- Short article about Specs Grading by Linda Nilson
- Blog post on Specifications Grading by Robert Talbert
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