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Everything posted by ewmon
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In this variation of the Dichotomy Paradox first described by Zeno of Elea 2,500 years ago, it takes time to measure and compute the next distance to travel. Thus, the robot slows as it approaches the wall. The situation here whether to command the robot: 1) to travel at 1 km/hr (in which case it reaches the wall in 1 hour by starting 1 km away from it), or 2) to command the robot to measure, divide and move. It cannot do both indefinitely. No paradox exists.
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Proteins are too big for digestive systems to absorb. Hydrochloric acid in digestive juices hydrolyzes proteins (that is, inserts a water molecule between them, allowing them to separate. When we come into contact with HCl acid, I suppose the acid effectively "digests" our skin, it being mostly proteins. So, HCl acid decomposes proteins into amino acids -- that is, "extracts" amino acids from proteins. However, isolating and purifying amino acids is another matter and, IMO, it would be much more complicated and expensive.
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Sneaky. Evasive. Furtive.
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Visual field defects. Totally confused. Please help!!
ewmon replied to scilearner's topic in Biology
Most of the visual fields of our eyes overlap, giving us binocular vision. Only the extreme vision to the sides (ie, "temporal" in the OP diagrams) is monocular, which occurs because of the nose, which blocks the right eye from seeing to the extreme left, and vice versa. The white section of the vision field shown below is the binocular region. The hatched areas on the left and right are the monocular regions of our visual field caused by the nose blocking the opposite eye from seeing. The black areas are not visible with either eye due to the eyebrows and cheeks. So, the visual fields shown in the OP should mostly overlap each other to give a better representation of what one would see. The numbers on the orthogonal axes shown below are degrees. Most people can actually see slightly behind themselves (ie, >90°) out of the outside corner of each eye (but the diagram below only goes out to 90°). -
Visual field defects. Totally confused. Please help!!
ewmon replied to scilearner's topic in Biology
Think of the vision fields as what you would see out of your eyes, and follow the cut nerves back to the retina and then to the light flowing into the eye(s). -
It seems strange to me too. Palin looks significantly darker, and I don't know who did it or why. It seems that the videos are not live, so there's plenty of time for proper video editing. Maybe all that time away from Alaska has naturally darkened her skin, but the rest of the frame seems "subdued" as well.
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Also, does my eyesight fail me or ...uh... does she appear not so "white" in a literal physical sense. Her videos on the recent shootings (I don't otherwise pay attention to her) show her as though through a sepia filter. Tanning salon, studio lighting, camera settings, video processing, or what? She's looks almost as dark as Obama. If only they could filter out her twang.
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Ditto. Any extremism is the simplest and easiest ideology to maintain. Palin suffers from a near-utter lack of tact, poise, diplomacy, savoir-faire and overall brain-power essential for any top national office. Her abysmal failure at, and abdication of, the Alaskan Monarchy says volumes about her inabilities.
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Where I am in the US, residents have access to libraries at government-run colleges and universities exactly due to that reason (that is, paid by our taxes).
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Malocclusion?
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How come herbivores are muscular?
ewmon replied to dirt's topic in Evolution, Morphology and Exobiology
Herbivores require large digestive systems needed to extract nutrients from their bulky, nutrient-poor foods (grasses etc) which, in turn, require large skeletal systems with which to carry their digestive systems which, in turn, require large muscular systems to move them around (especially when chased by carnivores). Some herbivores (cows etc) obtain proteins by digesting the bacteria produced within their digestive systems (which also requires larger digestive systems). Some herbivores (horses etc) have digestive systems that don't produce or digest bacteria, so they require a diet containing proteins (oats and other grains). Having a lighter digestive system (and skeletal and muscular systems) is probably why horses can run so fast and why people ride them (except for Mongo in Blazing Saddles). Carnivores require small digestive systems (and the light lungs occupy most of its torso) which, in turn, require light skeletal systems and, consequently, light muscular systems. -
September 11th; does anyone else think it was suspicious
ewmon replied to Fanghur's topic in Speculations
IMO, conspiracy theories are Occam's Razor at it's most film noir-ish! It's easier to think that a few corrupted ones at the top (Bush et al, or whoever) caused/allowed something to happen than to think that 10's of 1,000's of patriotic people within various governmental agencies are corrupt or that the "entire" system "just happened" to fail "all at once" or had longstanding chinks their armor. That is, the CIA's external intelligence gathering, the US Customs's border control, the FBI's internal intelligence gathering, the Department of State's intelligence efforts, Boston's, Washington's and Newark's airport security, etc, etc all "supposedly" failed "simultaneously" to detect/halt this horrible threat/disaster or were all somehow "in on it" or all had serious longstanding problems. -
Very little in life is actually measured directly, and I doubt that any method or device exists that can actually count the passage of ten electrons over the course of one second. Instead, a device can accumulate/integrate the current over a period of time and then measure this captured charge. Or an amplifying device can amplify/cascade this current/electrons, and then, measure this magnified current/charge through more conventional means and scale it to the original current. For example, this addresses some of the OP's criteria: CCD Sensitivity and Noise
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I've run plenty of competitive and other ELISAs. Q1 -- This is more theoretical than actual, so get general info by googling: competitive ELISA troubleshooting. Q2 -- Refer to your assays instructions because test procedures and steps vary according to assay. Q3 -- Explain why you did what you did. Either refer to the assay's literature or research it on the Internet.
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Find your answer in Wikipedia under vasa vasorum.
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Check Wikipedia.
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Could you re-state your OP with more detail?
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Correct.
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Back in 1888, the lack of quality control and consumer protection oversight for stamp glue might have allowed all sorts of biological contaminants (from a human DNA perspective), which would literally muddy up the waters. I'm guessing the glue was mucilage or a glutinous substance or similar material. Because the first adhesive stamp was the Penny Black, first issued in 1840, it's likely that the stamp on the envelope in question (in 1888) was an adhesive stamp and did not require using glue from a bottle or other external source (which would not require wetting with saliva, etc).
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But it's not always "the smaller" divided by "the larger". If your regular pay is $641, and one week you work extra and earn $857, what percentage of your regular pay did you earn?
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I have heard repeatedly from Muslims themselves that they believe they're born perfect and then corrupted by the evil in the world, and if they can only get rid of the evil (Westerners being a high-grade source of it -- probably because they're wealthy, powerful non-Muslims), then Muslims could return to their previous, original state of perfection. (PS -- Women are evil too.)
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We occasionally see people such as Andrew Wakefield whose top-drawer high-profile careers get utterly trashed, and I wonder what they might end up doing for work -- welcome people at the local Wal-Mart? We say "they're all washed up", but seriously, for example, who would hire Wakefield and for what kind of work?
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I recall a chimp raised by humans and taught sign language, who was then allowed to associate with other (non-signing) chimps and asked to describe them. The chimp described them as "insects". If highly advanced space aliens are flying around the universe, they probably view us as "insects".
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This looks like a perfect score, but I don't know what hits and bullets mean.
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Because volunteers are generally paid with smiles and thank yous, I can see volunteering as pumping confidence back into society to the point where employers need to hire back the jobless. I think jobless people collecting benefits could be required to do some sort of part-time work (in between looking for a real job), thus, they would have a "paying job" even if it was to do the work they'd normally do. Thus, the government would be acting as a temp agency, but the companies receiving the benefit of the volunteer work wouldn't need to pay the government. Society benefits from this economic shot in the arm, and there's no need to burden the taxpayers with an economic stimulus package. Yet, some company somewhere already paid for these workers' unemployment insurance benefits, so the volunteer work was already paid for at no cost to the taxpayer. Wait ... this makes too much sense.