Science Notes / Ellipsoid Gravity
The page "Science Notes / Ellipsoid Gravity" has been updated
Updates to the web site of SF author Greg Egan.
The page "Science Notes / Ellipsoid Gravity" has been updated
The page "Bibliography" has been updated
The page "Works Online" has been updated
The page "Bibliography" has been updated
The page "Science Notes / Borehole Oscillator" has been updated
The page "Bibliography" has been updated
The page "Science Notes / Pick Two Points" has been updated
The page "Bibliography" has been updated
The page "Science Notes / Pick Two Points" has been updated
The page "Bibliography" has been updated
The page "Science Notes / Reptends and Reciprocals" has been updated
A Spanish translation of my story THE DISCRETE CHARM OF THE TURING MACHINE
The page "Bibliography" has been updated
The page "Science Notes / Planes, Spheres and Pseudospheres" has been updated
The page "Science Notes / The Finite Fall" has been updated
My new story, "Vouch For Me", has just been published in the July/August 2024 issue of Analog magazine.
My new novel, MORPHOTROPHIC, is now available.
My new novel, MORPHOTROPHIC, can now be preordered.
Read an excerpt from my new novel, MORPHOTROPHIC
My new story "Death and the Gorgon" has just been published in Asimov's SF Magazine
My story DIDICOSM, about the shape of the universe, is now free to read online.
Read about the strange geometry behind my new story DIDICOSM.
How many different ways can you move along an orbit from point A to point B and arrive at a specified time?
My new story NIGHT RUNNING has just been published in Asimov's Science Fiction, in the March/April 2023 issue.
When electronics importer Cara Leon goes missing, private investigator Sam Mujrif is hired by her sister to investigate. Cara is eight times taller than Sam, but evidence soon points to players much smaller than either of them. As Sam and his cross-scale colleagues pursue the case, it becomes apparent that Cara's disappearance is linked to the development of technology with the potential to…
Read about the Mermin-Peres Magic Square Game
How can you find one fake coin among many, by comparing the weights of various sets of coins, using the smallest number of comparisons?
The page "Science Notes / Black Hole Passing" has been updated
My new story "Dream Factory" is online at Clarkesworld.
The page "Science Notes / Peeling the Octonions" has been updated
The page "Science Notes / Average Shadows" has been updated
The page "Science Notes / Average Shadows" has been updated
The page "Science Notes / Symmetries and the 24-cell" has been updated
Why is the Laplace-Runge-Lenz vector conserved?
The page "Science Notes / Constant Gravity Rollercoasters" has been updated
The page "The Book of All Skies / Gravity in Multiply Connected Space" has been updated
My new novel, The Book of All Skies, is now available.
The page "Applets Gallery / deBruijn" has been updated
What are the ways that objects undergoing relativistic motion can maintain constant distances from each other?
My new story "You and Whose Army?" is now online at Clarkesworld.
My 1985 story "Tangled Up" is now available to read on my web site.
The page "Science Notes / The Tell-Tale Board" has been updated
The page "Bibliography" has been updated
The page "Bibliography" has been updated
The page "Works Online" has been updated
The page "Bibliography" has been updated
The page "Miscellaneous Fiction / Crystal Nights" has been updated
The page "Science Notes / Howell’s Moving Orbits" has been updated
The page "Science Notes / Colour-blind Doppler Shift" has been updated
The page "Science Notes / Symplectic applet" has been updated