Thanks to CuriosityStream for their support. Go to http://www.curiositystream.com/minute... to watch Particle Fever and get Nebula!
Support MinutePhysics on Patreon! http://www.patreon.com/minutephysics
Link to Patreon Supporters: http://www.minutephysics.com/supporters/
This video is about two-photon (gamma-gamma) physics, and how photons can interact with each other - either mediated by a passing lepton, or gravitationally via lensing, or via vacuum fluctuation pair production of vertical particles (electron-positron pair, for example). This is the so-called "box diagram" feynman diagram.
REFERENCES
Water waves interact with each other (weakly nonlinear shallow water waves)
https://en.wikipedia.org/wiki/Kortewe...
http://mathworld.wolfram.com/Korteweg...
Paper: Absorption of Very High Energy Gamma Rays in the Milky Way
https://arxiv.org/pdf/1608.01587.pdf
Paper: Observing light-by-light scattering at the Large Hadron Collider (LHC)
https://arxiv.org/pdf/1305.7142.pdf
Mass-Energy Scale
http://labs.minutelabs.io/Mass-Energy...
Optical Depth
https://en.wikipedia.org/wiki/Optical...
The electromagnetic spectrum and photon energies
http://labman.phys.utk.edu/phys222cor...
Gravitational Lensing
http://andybohn.com/research/lensing....
Ask an Astrophysicist on gamma ray scattering and energies in cosmology
http://teacherlink.ed.usu.edu/tlnasa/...
Measuring Vacuum Polarisation with High Power Lasers
https://arxiv.org/pdf/1510.08456.pdf
Detecting vacuum birefringence with X-ray free electron lasers and high-power optical lasers
https://indico.desy.de/indico/event/1...
Vacuum birefringence in the head-on collision of XFEL and optical high-intensity laser pulses
https://arxiv.org/pdf/1807.03302.pdf
ATLAS makes first direct detection of Light-by-light scattering at the LHC
https://atlas.cern/updates/press-stat...
Two Photon Physics
http://www.hep.ucl.ac.uk/opal/gammaga...
https://en.wikipedia.org/wiki/Two-pho...
Thesis: The Opacity of the Universe for high and very high energy γ-rays
http://inspirehep.net/record/1254304/...
MinutePhysics is on twitter - @minutephysics
And facebook - http://facebook.com/minutephysics
And Google+ (does anyone use this any more?) - http://bit.ly/qzEwc6
Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute!
Created by Henry Reich
Do Photons Cast Shadows? ─ minutephysics
<style>.embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }</style><div class="embed-container"><iframe src="https://www.youtube.com/embed/Fv1JJ227CQk" frameborder="0" allowfullscreen></iframe></div>
