If the Earth is leaving a dust & bacteria trail behind, the dust would still be caught in orbit around the Sun. The dust would orbit the galaxies core at the same speed as the Sun unless it was forced out the Sun's orbit by something else.

That would pretty much be a waste of time. Your time is more valuable to you than you would save by salvaging components. Finding the resistor value that you need for example would be like finding a needle in a haystack. However, stuff like stepper motors are worth salvaging off old printers...

I use third party Li-ion camera batteries in my electronics projects to provide portable, rechargeable power solutions, and most of the cheap knock-offs will have the same pins; Positive, Negative and Thermistor. However, the Thermistor pin will just be hooking into an internal 10K resistor that doesn't change with temperature. The battery will still fit in the camera, but the temp sense pin is merely a dummy pin. From that perspective, I can see a safety concern... In this case though, I think Panasonic is just trying to tie their camera to their preferred battery suppliers.

Indeed, the problems I listed don't even take into account the code required to make it fly. Collision avoidance sensors (maybe an ultrasonic rangefinder) are a must for such a project, because you can't anticipate every obstacle before flight. Of course that leads to a whole other set of questions, do you go with a run-of-the-mill Microchip Pic as the processing brains, or do you go with something with more processing power (Blackfin pops to mind) and subsequently more power consumption? Do you build in a redundancy system with plane crashes in mind, like an auto parachute or something, or is the weight gain too significant? So many questions, and there are so many directions to go with such a project...

I have thought about doing a similar project for a long time, one where you can just enter GPS coordinates at get the plane to fly to those coordinates and take a picture, maybe take some weather readings as well, and send it back to a base station. A big problem that I see would be that it's hard to know how much a finished board would weigh, and how much power consumption would the instruments impose on the battery pack? Would I get an advantage from a more powerful engine from more lift, or would it just lead to power waste for the sake of a bit of extra speed? I'd also need to know that I have enough lift from the planes wings to carry the UAV circuit too or else it will be bogged down or not fly at all. The project seems to be more mech eng heavy than I'd like to take on as an elec techy.

This movie was terrible for the reasons many have already listed. What this team of writers seems to have forgotten is that it was the smart writing that created the fan base, not the special effects. This movie was an excuse to have a CGI space battle, and to get to said battle quickly before the non-fans' attention span begins to drift. It had no cohesive plot line that made any sense to real fans of the franchise. Some are grinning and bearing it because the Nemesis was such a flop, and TNG crew having run it's course, people are hoping that a commercial success will bring back a TV series which would be more fleshed out in the writing. That's the best case scenario I can see out of this, because they will kill the franchises meaning if they continue down this path. They tried to polish it too much, and it shows with the plot holes that they left hanging in favor of getting to OMG yet another pointless action sequence... Now all they have done is dumb-down this franchise to make money off of people who will see one or two movies and eventually get bored of the same special effects, lame plot, and the entire laughable 'reboot' attempt in general. Don't stray too far from your fanbase, Paramount, or this franchise will be squeezed dry in two movies.

That's another thing, why did Scotty use Archer's dog as his guinea pig for his transporter experiment and not just some insect? Why the Admiral's dog? Did he have to be on Saturn on a tight deadline?

Way too many plot holes... I found myself laughing at the movie more than I was sucked in. Fine, I get the whole alternate time-line thing and I'll bite for the sake of a story, but the tech was way off base from the original. In Next Gen, they constantly had to worry about staying in orbit to stay within transporter range. In the movie, 'Scotty' informs us that he can beam stuff between planets in the same solar system "which is easy by the way" as he says. So how did technology regress by next gen? Also, what the hell is red matter? What a crock, we are supposed to buy that? Also, the shameless ripping off from Wrath of Khan and Nemesis got tiring. Nero was a ripoff of Nemesis' villian, while the abandoning of Spock was too reminiscent of Kirk being abandoned in Wrath of Khan. Also, the captain would not lead a tactical assault team on Nemo's ship, just not starfleet regs... Spocks story made little sense, as did Nero's reason for hating him. Apparently Spock didn't try to save Romulus hard enough, but since when was it his responsibility to rescue Romulus? What about the times the federation helped the Romulans with the Borg or Species 8472? I guess earth got no credit for that lol... Awful reboot IMO, panders to the lowest common denominator.