Author Archives: Thor

Still More on the Twins Paradox

Posted on 2025-10-24 by Thor

[Originally drafted 2024-11-18] The annoying thing about the twins paradox is that even though we can see that one of the twins did not remain in an inertial frame the whole time, it seems like a minor difference, one that … Continue reading →

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More on the twins paradox

Posted on 2025-10-24 by Thor

[Original draft 2024-11-15. After publishing my original series of posts analyzing the twins paradox, I realized I had more to say. This and the next post were written a few months later, but not published. A recent memory about an … Continue reading →

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Stereo Planets

Posted on 2024-11-09 by Thor

Here is the set of planets presented for cross-eye or wall-eye viewing all on one page. You can click on them to expand and examine them in detail at their full resolution. Cross-eye images are first, followed by the wall-eyed … Continue reading →

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Stereo Constellations

Posted on 2024-11-09 by Thor

Here is the set of stereo constellations presented for cross-eye and wall-eye viewing all on one page. You can click on them to expand and examine them in detail at their full resolution. The cross-eye images are first, the wall-eyed … Continue reading →

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Stereo Pair: Saturn

Posted on 2024-11-08 by Thor

View as wall-eyedView as cross-eyed Description paragraph for the image… For help seeing the 3D effect, here are instructions for free-viewing stereo images. When you have fused them correctly, you will see the planet as a sphere, sticking out of … Continue reading →

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Stereo Pair: Ursa Major

Posted on 2024-11-08 by Thor

View as wall-eyedView as cross-eyed Description paragraph for the image… For help seeing the 3D effect, here are instructions for free-viewing stereo images. When you have fused them correctly, you will see a veil of background stars at about the … Continue reading →

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Stereo Pair: Jupiter

Posted on 2024-11-08 by Thor

View as wall-eyedView as cross-eyed Description paragraph for the image… For help seeing the 3D effect, here are instructions for free-viewing stereo images. When you have fused them correctly, you will see the planet as a sphere, sticking out of … Continue reading →

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Stereo Pair: Scorpius

Posted on 2024-11-08 by Thor

View as wall-eyedView as cross-eyed Description paragraph for the image… For help seeing the 3D effect, here are instructions for free-viewing stereo images. When you have fused them correctly, you will see a veil of background stars at about the … Continue reading →

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Stereo Pair: Ganymede

Posted on 2024-11-08 by Thor

View as wall-eyedView as cross-eyed Description paragraph for the image… For help seeing the 3D effect, here are instructions for free-viewing stereo images. When you have fused them correctly, you will see the planet as a sphere, sticking out of … Continue reading →

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Stereo Pair: Orion-Taurus

Posted on 2024-11-08 by Thor

View as wall-eyedView as cross-eyed Description paragraph for the image… For help seeing the 3D effect, here are instructions for free-viewing stereo images. When you have fused them correctly, you will see a veil of background stars at about the … Continue reading →

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