Why a new physics theory could rewrite the textbooks. Dyson equation for the nucleon polarization (shaded bubble). For the longitudinal polarization the photon-nucleon vertex is given by the zeroth component of the current operator. Credit: arXiv:1506.05875 [nucl-th]
I found the mother of all high school science resources. Detailed labs, articles, discussions, and assessments for life science, physical science, and earth science at the high school level. Developed by the NSTA.
Waves and the Electromagnetic Spectrum: Physical Science Interactive Notebook •The Nature of Waves •Features of Waves •Behavior of Waves •Electromagnetic Spectrum •Communicating with Radio Waves Students will be given the opportunity to show their understanding of the included concepts by completing the engaging and creative activities for the OUTPUT side of their Science Interactive Notebook. Activities range in variety for each chapter.
10 cool demos with tuning forks: determine the speed of sound...transfer sounds using a laser beam...bounce a ping pong ball without touching it. Many for high school, and some cool things for middle school intro to waves and sound.
Heisenberg realized it was impossible to know properties of a particle, position of an electron, but not its momentum and vice versa. Niels Bohr: discovery that helps to explain Heisenberg's principle. Bohr found electron has qualities of both a particle and a wave. Wave-particle duality, cornerstone of quantum physics. Measure electron's position, a particle's specific point in space, with uncertain wavelength. Measure momentum, treating as a wave, know wavelength amplitude but not…