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Stupid vs. Ignorant I am an astronomer teaching in a physics department, and as such, I teach a lot of classes that either have material that is entirely new, or a level of mathematical rigor that is new to the student. As such, I see a lot of perfectly excusable ignorance (After all, if they...

Re: Idiots...

Shadows Your logic is correct. Theangular size of a distant object can be given as: angle(") =(d/D)*206,265 where a is the angle in seconds of arc, d is the diameter of the object (in this case, Earth), D is the baseline distance (I used the 751 Kkm), and 206,265 is the number of...

The center of mass would be at 1.14 Earth Radii, so the monthly wobble of the stars as the "Earth" and "Mars-moon" orbitted probably wouldn't be weird enough to see, but any astronomers would notice it.

Harry again I am a Professor of Physics doing astronomy at Texas A&M - Kingsville,so I do have some background in this. BS Astronomy/Astrophysics Villanova MS Space Science Florida Inst. of Technology Ph.D. Physics Michigan Tech. Univ.

Why yes, I am a rocket scientist ... I haven't scanned to see what has been posted; please forgive me if someone else has answered this already. The radius of Mars is 3,394 km, or 1.95 times the radius of the Moon. Angular size decreases linearly, so your planet would have to be ~751,000 km...

Overreactions While I agree that Tracy's message was most likely written in the heat of the moment (after all, it was part of his own newsletter, sent to an audience he no doubt perceives as friendly and well-disposed to him), I think that many of the responses are ironically in the same vein...

As long as the Blood Rites to the Elder gods use the d20 version of the CoC rules ... (joke) My wife and I each sent ours out Wednesday, she was at about 400 words, and I was at 480. I chose now to register because I found out about the contest on Enworkd, so I wanted to contribute to the...