| Essays |
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| Essays I've written. | |||
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| Astronomy & astrophysics. | |||
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Stellar evolution The births, lives, and deaths of the stars. |
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Geosynchronous and geostationary orbits |
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Black hole evaporation A brief analysis of the mathematical results of Hawking radiation. |
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Gravitational redshift A thought-experiment demonstrating the existence of gravitational redshift. |
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| Humanity's place in the Universe. | |||
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Earth: 2091 AD A look at humanity's possible future in the next century. |
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| Mathematics. | |||
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Reductio ad absurdum A proof of the irrationality of the square root of two. |
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| Megastructures. | |||
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Outside Dyson shells Habitable solid Dyson spheres without gravity generators. |
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Why Niven rings are unstable A discussion of stability with Niven rings and Dyson shells. |
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| Physics & unit systems. | |||
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Planck units A look at a complete system of units based on the Planck units. |
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| Space travel. | |||
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Reaction drives and deltavees A brief look at the mathematics reaction drives. |
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| Navigation. | |||
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Erik Max Francis
-- TOP Welcome to my homepage. |
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Writing
-- UP Various things I've written. |
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Stellar evolution
-- START The births, lives, and deaths of the stars. |
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| Quick links. | |||
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Contents of Erik Max Francis' homepages
-- CONTENTS Everything in my homepages. |
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Feedback
-- FEEDBACK How to send feedback on these pages to the author. |
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About Erik Max Francis
-- PERSONAL Information about me. |
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Copyright
-- COPYRIGHT Copyright information regarding these pages. |
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| Copyright © 2025 Erik Max Francis. All rights reserved. |
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