Science Discussion

Weather Versus Climate Change: Some people just need Neal and a black lab (the world needs more labs!) http://www.youtube.com/watch?v=cBdxDFpDp_k

No, says BBC journalists. Not quite the same. They have only taken a very short summary of the whole article.

Have you actually read the primary source, which is the scientific article ? The last paragraph before the “Conclusion” chapter is very interesting : it reminds the 5 main limitations (and i’m sure you could find a few more) of the methods. I’m surprised the scientists didn’t include some reminder of the limitations in the conclusion.

Besides, the article admits that “most of the dissimilar assertions found by the reviewers failed to demonstrate discordance”.
The reason ? Every doctor or internal medicine resident was to find and evaluate what sentences can be taken as “assertions”. So basically each one probably had a different opinion on what assertion was worth reporting. At least they recognize this possible bias, which very certainly did occur IMO.

Once again: journalists running to the big lines and not reading the small prints.

However, you shouldn’t always trust your doctor on the pills he’s prescribing you :

Just because there were more than only “citizen” group shouldn’t discourage us from learning from them.
True, slaves, foreigners and female citizens were not permitted to vote. However their organization should be an example to be strongly considered.
If you still plan to make an invasion, @ThornEel, I’m with you and quite willing to give a few suggestions for improvements :wink:

Yes, I’ve given my own translation. You may find a more “english” sentence here.
Now, please explain as to why you find this “stupid” ? :slight_smile:

No.

I know people better off because they dropped some of the drugs prescribed. In America Dr. make money off of prescribing drugs.

I did a bunch on the philosophy page.

Which Came First - The Chicken or the Egg? http://www.youtube.com/watch?v=1a8pI65emDE
What they said. O.o Dogs are defective wolves who were chased out by the mean wolves.

Traces of another world found on the Moon
Nice to have evidence :slight_smile:
http://www.bbc.com/news/science-environment-27688511

Can Video Games Make You Smarter? http://www.youtube.com/watch?v=OOsqkQytHOs

Lolsparta gestures at the thread.
The thread collapses in a heap of ash.
the thread is dead.

It rises like a phoenix from its ashes. :stuck_out_tongue:

Does science support the existence of phoenixes?!?

It sure does!

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I saw what you did there … :smile:

The user Bentware mutters an arcane binding. Bentware gestures at the thread. The thread is animated.

You called?

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Meaning a zombie, right ?
Oh, here I am.

Come to me, brother thread. Leave your original shallow corpse, it has nothing more to offer you :slight_smile:

Faster than Light: Warp Drive - SpaceVision 2013 Just theory at this point.

Fish-eating spiders ‘widespread’

This is actually a really good look into what Dr. White and his lab are actually doing, and how far away warp drive really is. Sonny and his crew are doing some very, very important ground work here, but what always gets left out in media reports is that the physics that he’s studying is actually conditional on other physics (exotic particles with negative mass, or some other way of creating free-form and persistent negative energy densities) existing, and we have no insight to that prerequisite physics yet. But if ever the day comes where we discover those negatively massed particles, we’ll actually have some pretty interesting ideas as to how to use them.

It’s a big if, though.

I want to point out the last panel in his talk to @INovaeKeith and @INovaeFlavien. Keep that in your back pocket for whenever the day comes to really work on Infinity’s backstory again. It shows the hypothetical roadmap for developing and testing warp technology. It can be used to infuse some of that hard sci-fi legitimacy into Infinity’s universe.

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To continue the discussion about quantum vacuum plasma thrusters at a more appropriate place :

So does it means that you need at least their mass-equivalent energy to use those spontaneously appearing particles? Then, how is it more efficient than a photon drive? The article gives a 10 kW per Newton consumption, which seems very low (a photon drive is 300 MW per newton at best AFAICT).
So how can it manage to be that much more efficient ?

Hmmm, you’re right, that kind of efficiency can’t be achieved if the ship has to pay back the energy deficit to the vacuum. Without reading up on the actual research, my gut instinct is to say that the particle/antiparticle pair are only borrowed by the thruster, then. The thruster must use its EM field to merely delay the recombination, and push the particle/antiparticle pair toward the back end of the ship before the particles can annihilate. This would leave the ship itself off the hook for repaying the mass-energy to the vacuum, as it would be returned in the annihilation.

That’s just my guess here.