Does the Universe Have a Purpose? feat. Neil deGrasse Tyson
Neil deGrasse Tyson was asked by the Templeton Foundation to answer the question "Does the Universe Have a Purpose". Then he read his answer aloud and I drew some pictures for it. http://www.templeton.org/purpose/
In which we explain economic equilibrium, how to make money from nothing, and every fundamental force in physics.
If you'd like to read a (very) rigorous description of gauge theory in economics, check out this paper by Lee Smolin: http://arxiv.org/pdf/0902.4274v1.pdf
And if you're an economist rather than a physicist, check out "The Index Number Problem: A Differential Geometric Approach" by Pia Malaney: http://bit.ly/JKS5lh
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https://www.youtube.com/watch?v=3_RhISgoXUs
There's a March for Science happening all over the world: http://marchforscience.com
This is a video about how science is both inherently political and apolitical. And how hopefully we won't end up in nuclear war...
REFERENCES:
Language acquisition and age of arrival:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2813069/
https://www.utdallas.edu/~assmann/hcs6367/marinova_todd_marshall_snow00.pdf
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https://www.youtube.com/watch?v=8k-JK-QgAgg
Watch the full MinutePhysics video here: http://dft.ba/-3v1L
CMB data image used in the tutorial: http://imgur.com/XU9rl
Also, explore a map of the big bang! http://www.bigbangregistry.com
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Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute!
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https://www.youtube.com/watch?v=pQiKBM9rDoM
FREE FACT: An oblate spheroid is a special case of an ellipsoid where two of the semi-principal axes are the same size.
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https://www.youtube.com/watch?v=q65O3qA0-n4
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This video is about elastic and inelastic collisions in 1D, 2D and 3D - and how the collision of conservation of energy with conservation of momentum, plus a secret direction, results in a completely predetermined behavior for most collisions.
REFERENCES
1D Collision Calculator:
http://hyperphysics.phy-astr.gsu.edu/hbase/col1d.html#c1
Elastic collision of spheres Wolfram
https://demonstrations.wolfram.com/ElasticCollisionsOfTwoSpheres/
Oblique collisions of two 2D spheres
https://iopscience.iop.org/article/10.1088/1361-6404/aab330
Ballistic Pendulum
http://hyperphysics.phy-astr.gsu.edu/hbase/balpen.html
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Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute!
Created by Henry Reich
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https://www.youtube.com/watch?v=bSVfItpvG5Q
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This video is about Hardy's Paradox, wherein an electron and positron (or photons polarized horizontally and vertically) pass through Mach-Zehnder interferometers that overlap such that the particles have a chance of annihilating. If they do annihilate, then the interference pattern changes and there is a probability for both particles to be detected in the "dark arms" of the detector, that is, where previously there was no probability for detection for either particle. The paradox has implications for local realism, contextuality, lorentz elements of reality, and has been used as an experimental setup for weak measurements.
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https://www.youtube.com/watch?v=Ph3d-ByEA7Q
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In order to make something good, you need to have the right combination of three things: Quality, Discernment and Taste. This video is about quality vs quantity, the paradox of quality, how to make good content and good videos, etc. Based on my experience over the last decade running a collaborative creative business, MinuteEarth, where we do regular internal reflection and training on the craft of science communication.
Support MinutePhysics on Patreon! http://www.patreon.com/minutephysics
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MinutePhysics is on twitter - @minutephysics
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Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute!
Created by Henry Reich
...
https://www.youtube.com/watch?v=TWBEi4ZcLu4
Guest narrator Sean Carroll of Caltech describes dark energy and the acceleration of the universe, the discovery of which was awarded the 2011 Nobel Prize in Physics on October 4th.
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minutephysics is now on Google+ - http://bit.ly/qzEwc6
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Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute!
...
https://www.youtube.com/watch?v=v6o2bUPdxV0
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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/Korteweg%E2%80%93deVriesequation
http://mathworld.wolfram.com/Korteweg-deVriesEquation.html
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-Scale/
Optical Depth
https://en.wikipedia.org/wiki/Opticaldepth
The electromagnetic spectrum and photon energies
http://labman.phys.utk.edu/phys222core/modules/m6/The%20EM%20spectrum.html
Gravitational Lensing
http://andybohn.com/research/lensing.html
Ask an Astrophysicist on gamma ray scattering and energies in cosmology
http://teacherlink.ed.usu.edu/tlnasa/reference/imaginedvd/files/imagine/docs/askastro/answers/970412e.html
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/12654/session/2/contribution/8/material/slides/0.pdf
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-statement/atlas-sees-first-direct-evidence-light-light-scattering-high-energy
Two Photon Physics
http://www.hep.ucl.ac.uk/opal/gammagamma/gg-tutorial.html
https://en.wikipedia.org/wiki/Two-photonphysics
Thesis: The Opacity of the Universe for high and very high energy γ-rays
http://inspirehep.net/record/1254304/files/desy-thesis-13-033.pdf
MinutePhysics is on twitter - @minutephysics
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Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute!
Created by Henry Reich
...
https://www.youtube.com/watch?v=Fv1JJ227CQk