ewmon

FYI, you guys are talking about the the "cross-sectional density" of projectiles.

I have repeatedly bit my tongue regarding Spyman's posts. I don't know if it's language skills getting in the way, but Spyman's posts sound like particular conditions cause particular results. However, this isn't true. For example, 1) charges get depleted, 2) batteries will empty, and 3) batteries will get exhausted for many other reasons and not just the conditions stated in Spyman's last post. I don't know from what knowledge Spyman's speaks.

I see this sort of freedom-of-speech curtailment as: 1) blaming the speaker for the stupidity of the masses, 2) being far to vague to enforce with any real degree of sincerity, and 3) prone to being used subjectively. For example, if you state that Korea is on the brink of war, and people then react in a certain way due to their ignorance and mass hysteria, and their actions are subjectively deemed negative by someone in authority, they come and arrest you. On the other hand, it would help to hold politicians to their campaign promises, and allow them to be more readily impeached. But overall, it would dangerously limit the freedom of speech.

Well... naming stuff can get a bit flaky. Probably if a rodent looks big, someone might call it a rat, otherwise, it's a mouse, gerbil, hamster, etc. There's a bunch of "pouched rats" (African giant pouched rats, Gambian pouched rats, Emin's pouched rats, etc) that aren't "true rats" but are closer relatives to the mouse than the [true] rat. The same visual mistake might easily apply to some ducks. Some ducks (Aylesbury, Rouen, etc) are large enough to be mistaken for geese if the observer didn't know any better.

Wow! It gives a new meaning to "High Noon" (aka 1952 western starring Gary Cooper).

IMO, you ask questions that show yourself in dangerous territory, and you need someone to thoroughly explain electricity to you in-person before you accidentally kill yourself. My only recommendation to you is to not touch or play with anything electrical until you learn much more than what people have tried to explain here. I'm not posting anymore in this thread.

You mention activities that makes you feel good, but work is not a spectator sport. A career means doing something that someone will pay you to do. I tell students this -- Take a good look around and ask yourself what you strongly believe would make the world a better place or, conversely, what's wrong with the world. This exercise will show you the direction that your heart is pointed ... and there is where you will have a job that you love to get up and go to every morning. Then, research the pay that you'll probably earn and if you want to live such a lifestyle. Then you need to ensure that you have a skills set or can acquire a skills set that will allow you to work in the profession. Lastly, look into the cost of the education, and find ways for you to finance you education. If the career that comes to mind doesn't involve chemistry, then chemistry is only a hobby or an amusement for you, although what you suggest (the elements, like seeing them, like learning about them) includes teaching chemistry, where you can pass along your knowledge and enthusiasm to others.

It does. In your circuit of parallel resistors, the voltage is supplied, and the current results from the voltage applied across the resistors. When applied across parallel resistors, the voltage produces currents in each branch equal to V/R, where R is the resistance for that branch. When the currents combine at either side of the resistors, the currents are additive (just like the waters of a river's branches splitting or combining). Yes, they absorb/dissipate the electrical power regardless of their configuration. In a detailed sense, wires have tiny (usually negligible) resistances. If you were to measure the voltage at a point down one of the branches toward its resistor instead of at the junction of the branches, the voltage would read slightly different due to the tiny voltage drop along the length of wire between the junction and the resistor. Regardless of the configuration, a resistor absorbs/dissipates an I²R amount of power, and the current depends upon the voltage and the resistance it's applied across. When a voltage is applied to a circuit, the current is a result of voltage working upon the circuit's overall resistance. So, more accurately, the voltage drops across the combined resistances in series (that is, R1+R2+R3+...). The resulting current I=V/(R1+R2+R3+...) flows through all the resistors, and each resistor dissipates an I²R amount of power and an IR amount of voltage. Voltage drop across resistors is more accurately called IR drop. All the power dissipation and voltage drops add up, and everything is accounted for. Voltages (or, more accurately, voltage drops) are additive with series resistors, and currents are additive with parallel resistors. These two facts are called Kirchhoff's Laws.

Yes, both power sources would produce about the same amount of light; however, due to afterglow, lamps operating on AC power don't produce any significant flicker. Humans can see flickering at 50 and 60 Hz, and on-off flickering at those rates would annoy people and cause headaches.

Here's a cool website: Causes of Color

Also, IIRC, Earth is also relatively solid and tends to move as one piece, and the oceans are liquid and tend to deform more easily.

Light. One form of electro-magnetic radiation (other EMR: radio waves, microwaves, infrared, ultraviolet, x rays, gamma rays, etc), so-called because it exhibits electrical and magnetic fields that relate to one another and whose field strengths oscillate at a certain rate (described as "frequency"), and thus, as they travel at or near the speed of light, go through cycles over the distances traveled (described as "wavelength").

It means that of the proteins you eat, 25 to 60% come from the grains you eat, although the 60% figure might refer to vegetarian diets. To continue with what Mr Skeptic said, it's not exactly a matter of needing enough protein, it's a matter of needing enough of each amino acid. Proteins are chains of amino acids too big for your body to absorb, and you really wouldn't want those foreign proteins floating around your body doing who knows what. So your digestive system disassembles proteins into their (harmless) amino acid components, and then absorbs and uses them. Humans cannot manufacture some amino acids, so these amino acids are an essential part of one's diet. They're called essential amino acids. Vegans need to ensure that their all-vegetable diet contain sufficient amounts of these essential amino acids. (IMO, humans are supposed to eat meat.)

Yes, a thicker wire reduces the resistance which allows more current (ie, increasing a highway from 2 lanes to 4 lanes would increase the flow of cars). However, the amperage results from the combined resistance in the circuit (device, wiring, etc). So, if the device has a resistance of 10 ohms and the power cord 1 ohm, the total is 11 ohms. If a thicker wire has ½ ohm, then the total is 10½ ohms, increasing the current by only 4¾% (11/10½ = 104.76%). Conversely, however, if your load draws greater amperage, you'll also want thicker/heavier wire supplying the electricity so the wiring doesn't overheat/fail. How much do you know? What is boggling your mind?

Pumped faster? No, electrons flowing through a load, such as a light or toaster (or water), move at the same speed regardless of the voltage or the size of the load (and the resulting current). Amperage = current = amount of electrons. So, it can pump more electrons. Walshy, you might best think of electricity using the water pipe analogy. In this analogy, volts ~ pressure, current ~ flow, resistance ~ restriction.

Voltage is the force pushing the electrons. The current results from that force pushing against a resistance, so a small resistance allows a large current and a large resistance allows only a small current. The ratings listed on your power supply are telling you the voltage that will push the electrons and the maximum current it can continuously push without overheating or burning out. Electrical power is computed as volts times amperes (with units in Watts), so 9 volts × 2.2 amps = 19.8 Watts maximum power output 15 volts × 1.2 amps = 18.0 Watts maximum power output I totally agree, and I've worked with electricity for many years. Whatever you read was written by a bunch of ignoramuses. If your body is hit with a couple hundred volts, and the power supply can support the current that results from it, it'll get really ugly really fast (so prepare for a trip in an ambulance, maybe to the morgue). Almost guaranteed too, that a tiny power supply will burn itself out trying to pump as much current as possible through you, so don't think that the listed ratings will save your life — they won't.

Who said one was more powerful than the other, and how do you intend to use them?

... and benzos. When doctor's take patients off these drugs, they need to taper them off, especially when patients have been on them for years.

I agree in that, in real life, if someone's legal name is Robert Jones, he'd have really serious problems trying to sign everything "Mary Smith" even if his license carried the Mary Smith signature. I did, interesting enough, come across a woman who legally changed her entire name to just one word — "Scout", so she probably has an interesting time with bills, banks, credit cards, insurance companies, city hall, etc. During one period in my life, my signature was my first initial followed by my last name in one continuous scripting, and people were always carding me and it got to be a real pain in the neck. So, yeah, someone could theoretically sign their signature any way they wanted, but in real life, anything out of the ordinary might cause a lot of problems.

It only make sense that your signature is some recognizable "depiction" of your name and something that you can be proud of. I've heard that European companies tend to ask for a sample of handwriting for personality analysis from prospective employees. IS this still true? American companies do not do this, but IMO, Americans think the appearance of your signature on your job application says something about yourself. Regarding forgery, the more continuous the flow of lines without the pen leaving the paper, the more difficult it is to forge. Breaks in a signature allow forgers to stop, compare their work with the original signature, and continue on. IIRC, some public people may have two signatures: one for serious documents and one for public letters, autographs etc. IMO, truly important signatures (checks, contracts, mortgages, promissory notes (IOUs), wills (holographic or not), pre-nuptials, etc) should be understandable ... that someone reading it will know the person's name, and that a bunch of squiggles and slashes are easy to forge. IMO, know your pens for serious stuff: never use erasable ink, and use a fine-tip felt pen or a gel pen instead of a regular ballpoint, so that the ink actually soaks into the paper (important when it comes to the payee and the amount written on a check). Frank Abagnale of "Catch Me If You Can" fame turned from a life of crime to an equally world-famous career as professional security advisor. Here's what he says about check fraud and identity theft.

Nothing that you've said shows your friend to have multiple personalities. Most of what you describe shows your friend to be shy and introverted and protective of his personal life. What he and you consider to be parts of a friendship are slightly different. You could apologize for saying something too personal for him but that you did it out of sincere concern for him and that you want to continue being friends. Maybe this needs to be done over the phone to avoid face-to-face embarrassment. You know best. But I don't see multiple personalities here.

In the simple sense, alcohol is a depressant, so the central nervous system reacts by stimulating itself. When the alcohol wears off, the stimulation remains, and that's where the hallucinations (snakes, bugs, etc) come from. The over stimulation can result in convulsions, includes heart and diaphragm dysfunction, which can result in death. So, in that sense, the body depends upon the alcohol because the nervous system stimulates to maintain equilibrium (as long as the alcohol remains), but when all that alcohol goes away, the equilibrium gets thrown off (again), but the body may not compensate enough and death results. With alcohol poisoning, the heart and diaphragm functions are so depressed, that they grind to a halt (the body not being able to compensate fast enough), and the person dies. So, basically, alcohol can kill you one way or the other — vital functions either grinding to a halt or getting overstimulated.

Addiction occurs from the imbalance of short-term and long-term effects. People take drugs for the short-term effects, but the brain compensates long-term. When the short-term effects of the drugs wear off, the long-term compensation remains, which, giving the opposite feeling as the drug, encourages people to take the drug again (at least in order to feel normal). Heroin, for example. Day 1, the user snorts one bag, gets high, but the brain realizes that its sensitivity to pain is diminished, so it increases its sensitivity. Day 2, the user wakes up and doesn't feel so good due to the increased sensitivity to pain (the brain is always receiving pain signals), so the user snorts one bag to feel normal and a second one to get high. Day 3, the user wakes up feeling lousy, and snorts two bags to feel normal and a third to get high. Day 4, three bags to feel normal, a fourth to get high. Etc, etc. When it comes to actual physical addiction, there's only a few drugs that matter. Alcohol is physically addictive. People seriously into alcohol cannot go cold turkey, or they might die because their bodies become physically dependent on the alcohol. Heavy drinkers feel a bit of this physical dependency when they need "the hair of the dog that bit them" so they can begin to feel normal. If someone is on a serious bender, don't think you can put him/her to bed to sleep it off because they may be dead by morning. Alcohol can also cause restless, unfulfilling sleep because of the brain's natural stimulating compensation takes over in the middle of the night after the alcohol effects wear off. Heroin is not physically addictive. You can die from ODing, but if you go cold turkey, you'll feel like you're dying, and you'll want to die, but you won't. Plenty of heroin addicts have told me that, if they had a gun while going cold turkey, they would have killed themselves. When it comes to addictiveness in general, the addicts and the experts both agree that nicotine is the most addictive substance. As I said before, it creates a calming short-term effect, but it also causes an agitating long-term effect. Most coffee drinkers experience caffeine withdrawal in one form or another. When coffee drinkers are grumpy and/or can't get going in the morning, it's withdrawal. Caffeine stimulates, but the brain depresses to compensate.

I'm not saying that a few female teachers never had sexual liaisons with students in the past, This data shows it happening a lot more in recent years. I can't dismiss this data by thinking that it's always happened as frequently as today, it's just that no one got caught or that it wasn't reported to authorities or that the authorities didn't arrest or prosecute them. Otherwise, one would need to claim that other female crimes went undetected, unreported or unprosecuted, such as in 1991 Wanda Holloway hiring a hit man to murder the mother of her daughter's cheerleading rival to get the rival out of the cheerleading squad. Can you cite any sources showing that female teacher / student sexual liaisons were more prevalent prior to circa 2000? As to "going to hell in a hand basket", anyone care to tell me when's the last time you heard of a 6-year-old committing suicide by hanging herself (or any other way)?

And then there's the ever-widening insanity in the world ... Diapers.com wants nothing to do with parent Amazon's pedophilia-philia