fafalone

Stephen Hawking

How can anyone believe in creation in this day? there's simply too much evidence... genetic proof, the fossil record, the fact that if new species didn't evolve, there wouldn't be such a diversity, since the number of extinct+number of existing species is way above earth's carrying capacity... the list continues

To really cut through steel quickly, you'd need an extremely powerful laser with a power output of 1000W or higher. You'd want to use a CO2 laser or a COIL one, or anyone that could produce that much power. Lasers with this much power would be really hard to build without permits and alot of money, but entirely possible

In the largest pharmaceutical acquisition ever, CNN Money is reporting that the largest drug company in the world, Pfizer, will purchase rival Pharmacia for $60 billion in stock. The immediate effects of this were Pfizer shares going down, and Pharmacia shares going up. Click here for the Pharmacology forum.

According to an article in NewScientist, Lawrence Berkeley National Laboratory researchers have officially admitted that data was fabricated when they reported Kr ions being fired into a Pb target produced element 118. They retracted their discovery after it could not reproduced, and now have come forward stating 1 member of the 15 person team falsified data. Click here for the Theoretical Chemistry forum.

No, superluminal motion is not neccessarily a violation of special relativity. Special relativity states that all observers view an event in the same order based on a subluminal signal, but if the signal was superluminal it would appear to some to travel back in time. However, this does NOT create a causal paradox. In order for one to occur, a time-reversed path must exist in the emitters past light cone; something that is garunteed by global inertial frames in special relativity. With gravity being part of the space-time curvature, gravitational birefringence allows photon paths to depend only on the curvature, and a straight line isn't always the shortest path. In fact, along the event horizon of black holes, if one polarization of a photon is subluminal, the other is superluminal. As far as we know right now, superluminal motion is only possible because of a quantum violation of the strong-equivalence principle with photons.

not testable YET

So, the experiments using an interferometer we wrong when they concluded that either there was no ether or the earth wasn't moving?

How do you feel about cloning?

Don't forget about FDA approval, that makes up the difference between our estimates

Right-wing religious nonsense motivated purely by the desire to please the Vatican. my opinion :/

Parsec is short for parallax second, it operates on the principle of using your position and the position of a known object to calculate the distance from an unknown object. a "second" is a degree measurement (degree, minute, second). Not sure of the exact reason for it's use, but I'd guess because its closer to expressing how distance is actually measured, since we can't directly measure how long light traveled. It's most commonely used in describing huge distances, like the nearest galaxy is about 7Mpc away (megaparsecs). I don't know the history of it offhand, I'll get back to you.

Right now the technology is very primitive. But we do have things that completely bypass the optic nerve and directly stimulate the brain, and that just lets people see outlines of things. But there have been notable advances, such as eels controlling machines and the latest remote controlled rat I'd estimate the first "add-ons" for human brains won't be mainstream for at least 40-50 years.

thanks:) where i feel the most passion involves researching the brain, and i plan to go into neurosurgery for a career. however i'll always spend alot of time on quantum mechanics, cosmology, and related fields.

Well this goes back to the neurotransmitter you mentioned, serotonin. This chemical is essentially what makes you tired. Your Circadian rythms adjust to the time you normally rest for a long period of time, and accordingly that's when your body begins increased serotonin secretion. When you normally wake up, serotonin secretion slows down. The waking up time is more important to keep constant than the going to bed time, although both are important to maximize productivity during the day.

are you accusing me of lying?

Because until you provide solid facts and references, you're a troll. I'm an administrator, you're lucky you got off with troll (and given your self-proclaimed openness, why restrict knowledge to your math)

Nature Science Update posted an article about an experiment showing that a perovskite (LaFe0.57Co0.38Pd0.05O3) can reduce the amount of precious metal currently used to break down harmful vehicle exhaust gases by up to 90%. Check out the article for more details, as I'm not familiar enough with this area to write about it.

Well, I'd love to shoot the message instead, but you sure won't provide a source of it.

(1) Many have entrances, most cultures do seal their tombs. (2) Need to breathe while you're working on it, and why would their be air vents if no one went into it? (3) The kings chamber... why would the king (we call them pharoahs, not kings, research?) have a chamber and there are no entrances? (5) Doesn't point to it being a water machine. (6) This again supports it was used by people. And wells draw water from the ground, which you said they designed the machine to avoid. (7) The Nile was the cornerstone of their civilization, that's the water they're referring to. (8) so? (9) how so?

Please clarify. Mathematics can describe natural occurences, and higher levels happen as a result of the lower levels, starting with the smallest units of matter and working up to the universe as a whole. The lower levels are not driven by the higher levels.

I'd be more than happy to examine any evidence or formulas he has, unfortunately refusing to provide them angers me.

The hormone primarily responsible for ripening is ethylene, and the primary growth hormones are auxins. We are able to somewhat manipulate these hormones, but our methods still can't give us total control. Part of the ripening problem results from photoperiodism. Photoperiodism is a gibberellin-mediated response to daylight the uses very precise responses to phytochrome concentrations (they are broken down by sunlight), so it is neccessary to precisely control the length of day to maximize ripening results. Plants have a limit on their growth. The super-sized plants you see are the result of a condition called polyploidy, where the plant (usually an angiosperm) has extra sets of chromosomes. We also have some ability to control this as well, however it can produce undesirable effects, and there's always the anti-genetic engineering nuts protesting it. I hope this helps. (and unlike some people on this forum, I'll provide documentation that backs up what I said if someone doesn't believe me)

Nature is offering free access to its Focus on human origins papers. This includes free access to journal articles relating to the recent Toumaï skull and a paper from 1925 about Australopithecus africanus. Click here for the Evolution/Morphology forum.

I did debunk it, you just called every known law of physics false. Furthermore, this is your final warning. You will stop turning this board into your own personal pseudoscience site, or you will be banned from this forum.