The distance problem is also important. We detected exoplanets (where the star is very visible). Even if they are shining bright if they are far enough (as by very far most of the universe is) we won't be able to detect them. And in the other direction that happens too. We are in a 200 light year bubble where our… » 3/28/15 9:18pm Saturday 9:18pm

Twins or alternate versions of major characters in a way or another is a so common plot idea that some variations of it could be considered extra items. Clones, alternate realities, transporter malfunctions, time loops, plain twins or lookalike people are a few ways to get that, and all were used extensively. » 3/27/15 4:47pm Friday 4:47pm

Nice episode, happened a lot, but will probably all be undone next week. 1-day-into-future flash moved to past, will change it, and undo the damage of the weather wizard, and won't be a Wells disclosure, Iris kissing Barry, nor Cisco killing. There is just no time to go to the future and stop the wave, so the… » 3/19/15 6:48pm 3/19/15 6:48pm

Destroying the moon was pretty easy for the old man in Dragon Ball against Goku in monkey form, and trivial for Piccoro at the start of DBZ, in fact Vegita tried to destroy earth a "little" later when decided that wouldn't be defeated. And by then they were at the deep bottom of the power level scale compared with… » 3/19/15 4:48pm 3/19/15 4:48pm

Science (and scientific units) are not about (sometimes subjective, and depending on culture) human feelings. Making temperature, and far more fundamental units, dependant on water make the whole system consistent. Mass and temperature metric units are combined in the calorie unit (that is amount of energy to raise… » 3/16/15 7:43pm 3/16/15 7:43pm

I see there far more heat than cold. And the areas that are getting most of the heat are the ones with lot of trapped methane in the (soon to be gone) permafrost, the kind of things that give a nice possitive reinforcement to the global warming/climate change trend. i wonder how many boreholes has been opened in the… » 3/06/15 4:23pm 3/06/15 4:23pm

Pro-er tip: enter the vi editor, and try to exit it just by writting. Whatever you use to try to leave it, write it down: it will be a perfect password. And if you already know the vi editor, then odds that you already picked a good password are pretty high anyway. » 3/04/15 8:34pm 3/04/15 8:34pm

Niven's law of time travel will save us. Basically, if the universe enables to travel back in time and change the past, then time travel would never be invented (because if it does, at any moment someone will travel back and do something to avoid that, even if is just stepping over a butterfly back enough) » 3/02/15 9:59am 3/02/15 9:59am

The problem isn't technique, but finding the appropiate bodies for those heads. Who knows for how much time your head should wait to be finally transplanted » 2/25/15 9:12pm 2/25/15 9:12pm

That is the key objection, even if we were in perfect sync in opposite sidess if the sun, that planets would make perturbations in the orbits if the other planets of the solar system (Mars and Venus would be the most affected ones) and we would notice that. After all, even Pluto was discovered because perturbations in… » 2/24/15 1:47pm 2/24/15 1:47pm

They must keep doing episodes with the quality of the first 2 seasons (and the christmas one). But odds are high that they will be just muted, reality will have too much points in contact with it. » 2/18/15 6:21pm 2/18/15 6:21pm

You know what would be unholy? that they use and modify it, focusing on spreading their political message, turning it into a shapeless mess. It happened with Mimsy were the borogoves and Homeland Security, happened with All you zombies and drone bombing, and will do it again in every chance they had. And each time… » 2/18/15 3:13pm 2/18/15 3:13pm