Talk:Earthfall Part 4: Full Fathom Five

Cosmos' camera

No comment on the "light hours" issue, but comparing Cosmos' camera to that of Voyager 1 seems a little unfair; these are beings who have teleportation abilities and possess FTL travel. I think we can assume that, at the very least, their cameras are superior to those of 37-year-old human tech. Magaroja (talk) 11:07, 1 August 2014 (EDT)

Sure, but that's as much to point out the sheer distance involved as anything else. (And, although new space probe cameras are of course much better than Voyager 1's, let alone Cybertronian cameras, there comes a point where a combination of distance and the wavelengths of light involved - not to mention Earth's atmosphere in this instance - makes it physically impossible (as in "Laws of Physics") to resolve an image smaller than X. I'm pretty certain what Cosmos does in this issue is beyond that point. It's like arguing that the photomanip scene from Blade Runner is plausible with future tech...) - SanityOrMadness (talk) 11:52, 1 August 2014 (EDT)

Considering half the stuff Brainstorm has made (like a device that breaks the fourth wall), I'm not sure it's so implausible that someone could make a physics-breaking camera for Cosmos. --Sockie (talk) 12:05, 1 August 2014 (EDT)

I agree. Plus, maybe Cosmos is bouncing his camera off a satellite feed from 5 hours ago or something? --MistaTee (talk) 15:07, 1 August 2014 (EDT)

The fact the Cosmos specifically goes 5 light hours from Earth makes it obvious that Cosmos is simply taking a picture from that distance to get an image of Thundercracker's home from 5 hours before- which breaks the Laws of Physics like SanityorMadness stated. --TheSpartanD (talk) 16:23, 1 August 2014 (EDT)

That's like saying every episode of Star Trek breaks the laws of physics because they use warp. Of course it does. It's science fiction. Let's not start nit-picking conventions of the genre. Regardless, the comparison to Voyager 1 seems out of place in this discussion. --Crockalley (talk) 08:05, 14 August 2014 (EDT)

Cosmos' orbit

I did the maths.

• Speed of light c = 3.0×10⁸ m/s
• Orbital period T = 24 hours = 86400 s.
• Angular velocity ω = 2π / T = 7.3 × 10⁻⁵ s⁻¹.
• Radius r = 5 light hours = (5 × 60 × 60) s × c = 5.4 × 10¹² m
• Speed v = ω r = 3.9 × 10⁸ m/s = 1.3 c
• Acceleration a = ω² r = 2.9 × 10⁴ km/s = 2.9 × 10³ g. [g = 9.8 m/s²]

Tesellator (talk) 18:53, 9 September 2015 (EDT)