KidzTube
Welcome
Login / Register

The Unreasonable Efficiency of Black Holes

Thanks! Share it with your friends!

URL

You disliked this video. Thanks for the feedback!

Sorry, only registred users can create playlists.
URL


 Physics   |   Science
 Find Related Videos  added
180 Views

Description

Thanks to https://brilliant.org/minutephysics for sponsoring this video! Check out their black hole course at http://brilliant.org/minutephysicsblackhole

Support MinutePhysics on Patreon! http://www.patreon.com/minutephysics
Link to Patreon Supporters: http://www.minutephysics.com/supporters/

This video is about how efficient various reactions are at converting mass to energy (as we know from the Einstein mass-energy equivalence of E=mc^2). Antimatter is very efficient but it is not naturally-occurring. Chemical reactions like fire or explosions are very inefficient. Nuclear fission and nuclear fusion are better, but not amazing on an absolute scale. Non-rotating black holes (Schwarzschild) and rotating (Kerr) are by far the most efficient, due to their accretion disks and very small radius of their innermost stable circular orbits.

REFERENCES:
Periodic Videos Hydrogen Explosion in slow motion: https://www.youtube.com/watch?v=qOTgeeTB_kA

CIA World Factbook Norway Energy Consumption: https://web.archive.org/web/20120128032332/https://www.cia.gov/library/publications/the-world-factbook/rankorder/2042rank.html

Binding Energy: https://en.wikipedia.org/wiki/Binding_energy

Hydrogen molecular bonding: https://ocw.mit.edu/courses/chemistry/5-73-introductory-quantum-mechanics-i-fall-2005/lecture-notes/sec13.pdf

Gibbs free energy of water formation: https://en.wikipedia.org/wiki/Standard_Gibbs_free_energy_of_formation

Party Balloon Size Chart: https://broadwaypartyrental.com/wp-content/uploads/HELIUM-BALOON-CHART.pdf

Mass Excess https://en.wikipedia.org/wiki/Mass_excess

Table of Mass Excesses: http://www.nndc.bnl.gov/masses/mass.mas12

Deuterium-Tritium Hydrogen Fusion Energy Released: http://www.wolframalpha.com/input/?i=((deuterium+atomic+mass)%2B(tritium+atomic+mass)-(helium-4+atomic+mass)-(neutron+mass))%2F((deuterium+atomic+mass)%2B(tritium+atomic+mass))

Hydrogen to Helium Fusion chain efficiency: http://www.wolframalpha.com/input/?i=(4(proton+mass)-(helium+4+atomic+mass))%2F(4(proton+mass))

Uranium-235 fission efficiency: http://www.wolframalpha.com/input/?i=(neutron+mass%2B(uranium+235+atomic+mass)-(krypton+92+atomic+mass)-(barium+141+atomic+mass)-3(neutron+mass))%2F(neutron+mass%2B(uranium+235+atomic+mass))

Black Hole Accretion rates: http://www-astro.physics.ox.ac.uk/~garret/teaching/lecture7-2012.pdf


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

Post your comment

Comments

Be the first to comment









RSS