It's a radio transmitter in a can. It would take an even larger departure from known physics to make it go boom. We have a good deal of experience with radio transmitters in space.

OK, I will try to restate in my baby talk since I don't remember this correctly.

Given that you are accelerating, the appearance to you is that you are doing so linearly, and time dilation is happening to you. It could appear to you that you reach your destination in a very short time, much shorter than light would allow. To the outside observer, however, time passes at a different rate and you never achieve light speed.

I am having an equally hard time thinking of how Earth is more habitable than Mars while atomic bombs are going off or impactors are impacting. If you wait a while, sure it's more habitable than Mars. But for that moment, no.

Prepare for another culture-shock, my dear passport-less American. Tokyo has competing privately-owned subway lines. Japan's wonderful highspeed trains are privately-owned too.

Which shock would this be, exactly? Major American cities used to have competing privately-owned commuter rail lines as well -- mostly torn down in the first half of the 1900s in favor of the highway model. This is by no means a surprise to anyone who knows even local transportation history.

If a government is doing it, it can not be smart...

You lecture me about fallacies, and then pull out that?! I find it hard to believe that you're actually interested in making a good-faith attempt at a meeting of the minds.

To an outside observer. I don't think it's the same in the inertial frame.

Before we call this real, we need to put one on some object in orbit, leave it in continuous operation, and use it to raise the orbit by a measurable amount large enough that there would not be argument regarding where it came from. The Space Station would be just fine. It has power for experiments that is probably sufficient and it has a continuing problem of needing to raise its orbit.

And believe me, if this raises the orbit of the Space Station they aren't going to want to disconnect it after the experiment. We spend a tremendous amount of money to get additional Delta-V to that thing, and it comes down if we don't.

Just put the solar panels in the grow room - boom, free power!

Except without all that silly permanence when things go wrong.

As long as the founders played the corporation game right, they have no personal liability at stake. A corporation is just like a person, except that when a corporation violates a law which would burden it for life, or financially destroy it, it magically disintegrates leaving the real people who ran it into the ground clean and unencumbered by their wrongdoing.

There are good reasons for the existence of corporations; this isn't one of them.

So you're only traveling between airports? What about commuting to/from the airport?

Thanks!

Brian Webb isn't listing this on his Vandenberg AFB Launch Schedule yet. I think he's going to wait until someone official tells him a date.

So is the Apple Watch not working with wrist tattoos equivalent to a malfunctioning car, failing laptop, or or contaminated drugs/food? You call the GP commenter a shill. You sounds silly and shrill.

If you have wrist tattoos (my guess is you don't) and the watch doesn't work for you return it. Get some perspective, and buy a Google Wear instead.

With some optimism that might only be thousands of years rather than hundreds of Millions.

But it's only necessary for Earth to be uninhabitable for a short time to end the Human race. And that can happen due to man or nature, today. If people aren't somewhere else during that process, that's the end.

Losing 25% year on year in the Peso looks like kid's stuff in the devaluation game. They need a *real* currency to lock in year on year decreases of more than 50%. And that's why they've turned to Bitcoin!

4/15/2014 = $496
4/15/2015 = $223

It's not as fun as lighting cigars with $100 bills, but it's just as productive!

Even the most inefficient modern coal plants are significantly more efficient than an internal combustion engine.

The added bonus of electric cars is that, as the power generation shifts to less polluting sources (we hope), the electric car will become less polluting over time. The ICE powered car, however, will likely decrease in efficiency and increase the amount of pollutants it expels over time.

As for coal power, most of the electric cars in the US are located in CA, OR, and WA. Those states are primarily powered by natural gas, hydro, and nuclear power plants. Less then 15% of their energy comes from coal.