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Question removed per discussion at Wikipedia talk:Reference desk#Physics Magazine Guy. Questions from this person have been proven to be homework questions, not questions from a magazine. Nil Einne ( talk) 02:34, 26 February 2008 (UTC)
And homework be makin me smartr —Preceding unsigned comment added by 76.236.187.176 ( talk) 01:33, 28 February 2008 (UTC)
What is a volcano called in the ocean? What are the low hills and plains in the ocean called? What causes waves to form?
-- Shayshay789 ( talk) 00:46, 26 February 2008 (UTC)shayshay789
Wikipedia has some good articles about these, which would be a good place to start. Try Submarine volcano, and the very detailed Ocean surface wave and Tide articles. Gwinva ( talk) 03:13, 26 February 2008 (UTC)
I've noticed that my body does not always digest every particle of food I eat. Sometimes when I am in a hurry I've noticed even whole kernels of corn in my poop. To prevent this I've started using a food processor to break everything down into a paste. How much less food will I have to eat if it is pre-macerated in this way or how much and/or how many more nutrients will be absorbed by my gut? 71.100.9.94 ( talk) 02:34, 26 February 2008 (UTC)
what are adaptations to animals in the taigas of the world? What are examples of symbiosis in these taigas? I have checked wiki already in their subject of taiga but there is nothing about symbiosis. —Preceding unsigned comment added by 203.148.171.10 ( talk) 04:00, 26 February 2008 (UTC)
Hello, this is a pretty n00bish question so I'm sorry if the answer is painfully obvious. I have a preamp, but the left channel is busted (it's my dad's old Marantz preamp from the 70's - typical big old basement setup). My friend had the exact same situation and he told me to just plug both speakers in to the output of the channel that works, so since each channel has two little output clips and each cable coming from each speaker has two little copper wire ends, that would make two copper wire ends per clip....if that makes sense. I would be panning the sound completely to the right, and have both speakers hooked up to that channel. The preamp has a button that converts the signal to mono so I don't have to worry about losing sound from the left channel. Just wondering if they will be very underpowered? I'm bringing the preamp and both speakers to a party in a basement, and I intend on blasting some party classics pretty loud without damaging any equipment. Thanks a lot! NIRVANA2764 ( talk) 04:06, 26 February 2008 (UTC)
For several years now, I keep encountering this small insect in public restrooms, and recently, the bathrooms in my home. I see them only in bathrooms and nowhere else. They look like little flies with round bodies. The wingspan when "parked" is about 3mm from tip to tip. They fly silently without a discernible sound although their wings are a blur. They don't fly fast; they seem easily blown about by breezes, which may explain a preference in the relatively still air of a restroom.
I have no idea where they come from, or why I see them only in restrooms. I suspect they may come out of the drains, hatching from larvae attached to spaces in the pipes where they won't get washed away.
I've been seeing these for so many years, and finally got around to taking a photo of one, so I thought I'd ask here. If an article has been written about it, I certainly can't find it.
So, anyone know what insect this is? = Axlq 07:11, 26 February 2008 (UTC)
What is 'shut-in'oil prodution? "The Nation's economy lost $45.49 Billion...in the last three years...to shut-in crude oil production in the troubled Niger Delta. The shut-in was occasioned by the activities of militants...(Nigerian newspaper Vanguard). Thanks if you can explain. —Preceding unsigned comment added by 83.229.85.138 ( talk) 10:32, 26 February 2008 (UTC)
what is involved in a full knee reconstruction? —Preceding unsigned comment added by 81.139.65.131 ( talk) 10:35, 26 February 2008 (UTC)
The cold virus for example. Also, does alcohol kill viruses? 64.236.121.129 ( talk) 18:12, 26 February 2008 (UTC)
Which direction of sex reassignment surgery is more common - male to female or female to male? (The answer is probably obvious, but I'd still like to be sure.) - Sikon ( talk) 18:13, 26 February 2008 (UTC)
Recently I saw a demonstration of a radio transmitting on HF causing flourescent light tubes to dim and, at one frequency, turn off altogether. I am not sure if a similar effect was seen on mains powered devices. I am attempting to reproduce this behaviour... does anyone have any tips as to what the correct frequency might be or how much power output I would need? Thanks, Mart inp23 19:31, 26 February 2008 (UTC)
The rareified gas in a fluorescent lamp (which is a pretty good article) will ionize in the presence of any oscillating electric field. If you go out on a dark night and hold a fluorescent tube under a high-voltage electrical transmission line (like these), it will light up. Also, if you touch a fluorescent tube in a dark room with a static charge built up on your body, the tube will dimly illuminate from the electrons discharging from your body into it.
Because the fluorescent tubes are illuminated via an oscillating field, another electric field source tuned at the same frequency and phased to cancel the field inside the lamp, should dim it. I'd say a strong 60 Hz field (or a harmonic frequency) would do the job for household lights. = Axlq 18:14, 27 February 2008 (UTC)
Example :
A ship have 2 propulsion engines on individual throttle(which means you could control each engine by it's own throttle) are at different speed and direction. One of the engine is at half ahead(half forward thrust), while another is on full astern(full backward thrust). This action is called twisting.
Information :
1.) There are a lots of stresses on the ship's hull. 2.) Vibration
My questions :
1.) What are the bad effects on the ship? 2.) The damages that this action(twisting of engines) could caused?
Thanks Boonyuan ( talk) 19:52, 26 February 2008 (UTC)—Preceding unsigned comment added by Boonyuan ( talk • contribs) 19:49, 26 February 2008 (UTC)
I, like many, are annoyed by certain people pumping up the bass in their cars to tremendous levels (sometimes at 4 in the morning) and have wondered about how to stop it. I imagined that there must be a way to make their bass speakers stop functioning using some sort of inverse sound wave or such. Naturally, I know practically nothing of such things - my mind just makes up pseudoscience at random. But I wonder if it would be possible in any way to kill someone's bass speakers using a device no larger than, say, a toaster. Don't misunderstand me, I have no intention of building such a thing, since that would bring me down to their level of rudeness. Is there any way to do what I propose without using EMP, entering the car, or anything of the firearm persuasion? (Edit: Scratch the no EMP part - how about EMP that only affects the specific type of speaker?) 206.252.74.48 ( talk) 20:27, 26 February 2008 (UTC)
I expected the USA solution to involve a gun. Shooting out the speaker should lower the volume significantly and deafen yourself enough so that you cannot hear! Earplugs are a lowercost solution to stopping the sound. Graeme Bartlett ( talk) 10:29, 27 February 2008 (UTC)
hi,
is there any way to increase your dream rate?...eg any foods that make you dream more (does cheese actually work?)....an things you can do?
please keep it reletively simple thanks, -- 84.67.199.152 ( talk) 20:49, 26 February 2008 (UTC)
It's definitely about the remembering. Keeping a dream journal, and writing immediately upon waking in the morning, caused an increase in the amount of dreaming I was remembering. It also increased my rate of lucid or semi-lucid dreams, which freaked me out so I stopped keeping the journal. The other main method that, in my experience, increases the rate of dream memory is waking up more often. For instance, getting pregnant and thus reducing the capacity of my bladder caused me to wake at night and remember more dreams. Similar results (if you don't want the consequences of pregnancy, or lack the anatomy) would probably be obtained by drinking a lot of water before sleep. Placing a small child, who needs to eat at intervals, next to you in the bed is also an effective method. moink ( talk) 15:13, 28 February 2008 (UTC)
hi,
is there anything you can do to make your hair grow faster........eg foods you can eat?
thanks, -- 84.67.199.152 ( talk) 21:43, 26 February 2008 (UTC)
Could a Shadow Dexterous Hand be used to replace a human hand if you lost one in an accident? If so, could you go further and replace a whole arm or leg with an air muscle limb, or even build a complete robot? DTWATKINS ( talk) 23:54, 26 February 2008 (UTC)
Science desk | ||
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< February 25 | << Jan | February | Mar >> | February 27 > |
Welcome to the Wikipedia Science Reference Desk Archives |
---|
The page you are currently viewing is an archive page. While you can leave answers for any questions shown below, please ask new questions on one of the current reference desk pages. |
Question removed per discussion at Wikipedia talk:Reference desk#Physics Magazine Guy. Questions from this person have been proven to be homework questions, not questions from a magazine. Nil Einne ( talk) 02:34, 26 February 2008 (UTC)
And homework be makin me smartr —Preceding unsigned comment added by 76.236.187.176 ( talk) 01:33, 28 February 2008 (UTC)
What is a volcano called in the ocean? What are the low hills and plains in the ocean called? What causes waves to form?
-- Shayshay789 ( talk) 00:46, 26 February 2008 (UTC)shayshay789
Wikipedia has some good articles about these, which would be a good place to start. Try Submarine volcano, and the very detailed Ocean surface wave and Tide articles. Gwinva ( talk) 03:13, 26 February 2008 (UTC)
I've noticed that my body does not always digest every particle of food I eat. Sometimes when I am in a hurry I've noticed even whole kernels of corn in my poop. To prevent this I've started using a food processor to break everything down into a paste. How much less food will I have to eat if it is pre-macerated in this way or how much and/or how many more nutrients will be absorbed by my gut? 71.100.9.94 ( talk) 02:34, 26 February 2008 (UTC)
what are adaptations to animals in the taigas of the world? What are examples of symbiosis in these taigas? I have checked wiki already in their subject of taiga but there is nothing about symbiosis. —Preceding unsigned comment added by 203.148.171.10 ( talk) 04:00, 26 February 2008 (UTC)
Hello, this is a pretty n00bish question so I'm sorry if the answer is painfully obvious. I have a preamp, but the left channel is busted (it's my dad's old Marantz preamp from the 70's - typical big old basement setup). My friend had the exact same situation and he told me to just plug both speakers in to the output of the channel that works, so since each channel has two little output clips and each cable coming from each speaker has two little copper wire ends, that would make two copper wire ends per clip....if that makes sense. I would be panning the sound completely to the right, and have both speakers hooked up to that channel. The preamp has a button that converts the signal to mono so I don't have to worry about losing sound from the left channel. Just wondering if they will be very underpowered? I'm bringing the preamp and both speakers to a party in a basement, and I intend on blasting some party classics pretty loud without damaging any equipment. Thanks a lot! NIRVANA2764 ( talk) 04:06, 26 February 2008 (UTC)
For several years now, I keep encountering this small insect in public restrooms, and recently, the bathrooms in my home. I see them only in bathrooms and nowhere else. They look like little flies with round bodies. The wingspan when "parked" is about 3mm from tip to tip. They fly silently without a discernible sound although their wings are a blur. They don't fly fast; they seem easily blown about by breezes, which may explain a preference in the relatively still air of a restroom.
I have no idea where they come from, or why I see them only in restrooms. I suspect they may come out of the drains, hatching from larvae attached to spaces in the pipes where they won't get washed away.
I've been seeing these for so many years, and finally got around to taking a photo of one, so I thought I'd ask here. If an article has been written about it, I certainly can't find it.
So, anyone know what insect this is? = Axlq 07:11, 26 February 2008 (UTC)
What is 'shut-in'oil prodution? "The Nation's economy lost $45.49 Billion...in the last three years...to shut-in crude oil production in the troubled Niger Delta. The shut-in was occasioned by the activities of militants...(Nigerian newspaper Vanguard). Thanks if you can explain. —Preceding unsigned comment added by 83.229.85.138 ( talk) 10:32, 26 February 2008 (UTC)
what is involved in a full knee reconstruction? —Preceding unsigned comment added by 81.139.65.131 ( talk) 10:35, 26 February 2008 (UTC)
The cold virus for example. Also, does alcohol kill viruses? 64.236.121.129 ( talk) 18:12, 26 February 2008 (UTC)
Which direction of sex reassignment surgery is more common - male to female or female to male? (The answer is probably obvious, but I'd still like to be sure.) - Sikon ( talk) 18:13, 26 February 2008 (UTC)
Recently I saw a demonstration of a radio transmitting on HF causing flourescent light tubes to dim and, at one frequency, turn off altogether. I am not sure if a similar effect was seen on mains powered devices. I am attempting to reproduce this behaviour... does anyone have any tips as to what the correct frequency might be or how much power output I would need? Thanks, Mart inp23 19:31, 26 February 2008 (UTC)
The rareified gas in a fluorescent lamp (which is a pretty good article) will ionize in the presence of any oscillating electric field. If you go out on a dark night and hold a fluorescent tube under a high-voltage electrical transmission line (like these), it will light up. Also, if you touch a fluorescent tube in a dark room with a static charge built up on your body, the tube will dimly illuminate from the electrons discharging from your body into it.
Because the fluorescent tubes are illuminated via an oscillating field, another electric field source tuned at the same frequency and phased to cancel the field inside the lamp, should dim it. I'd say a strong 60 Hz field (or a harmonic frequency) would do the job for household lights. = Axlq 18:14, 27 February 2008 (UTC)
Example :
A ship have 2 propulsion engines on individual throttle(which means you could control each engine by it's own throttle) are at different speed and direction. One of the engine is at half ahead(half forward thrust), while another is on full astern(full backward thrust). This action is called twisting.
Information :
1.) There are a lots of stresses on the ship's hull. 2.) Vibration
My questions :
1.) What are the bad effects on the ship? 2.) The damages that this action(twisting of engines) could caused?
Thanks Boonyuan ( talk) 19:52, 26 February 2008 (UTC)—Preceding unsigned comment added by Boonyuan ( talk • contribs) 19:49, 26 February 2008 (UTC)
I, like many, are annoyed by certain people pumping up the bass in their cars to tremendous levels (sometimes at 4 in the morning) and have wondered about how to stop it. I imagined that there must be a way to make their bass speakers stop functioning using some sort of inverse sound wave or such. Naturally, I know practically nothing of such things - my mind just makes up pseudoscience at random. But I wonder if it would be possible in any way to kill someone's bass speakers using a device no larger than, say, a toaster. Don't misunderstand me, I have no intention of building such a thing, since that would bring me down to their level of rudeness. Is there any way to do what I propose without using EMP, entering the car, or anything of the firearm persuasion? (Edit: Scratch the no EMP part - how about EMP that only affects the specific type of speaker?) 206.252.74.48 ( talk) 20:27, 26 February 2008 (UTC)
I expected the USA solution to involve a gun. Shooting out the speaker should lower the volume significantly and deafen yourself enough so that you cannot hear! Earplugs are a lowercost solution to stopping the sound. Graeme Bartlett ( talk) 10:29, 27 February 2008 (UTC)
hi,
is there any way to increase your dream rate?...eg any foods that make you dream more (does cheese actually work?)....an things you can do?
please keep it reletively simple thanks, -- 84.67.199.152 ( talk) 20:49, 26 February 2008 (UTC)
It's definitely about the remembering. Keeping a dream journal, and writing immediately upon waking in the morning, caused an increase in the amount of dreaming I was remembering. It also increased my rate of lucid or semi-lucid dreams, which freaked me out so I stopped keeping the journal. The other main method that, in my experience, increases the rate of dream memory is waking up more often. For instance, getting pregnant and thus reducing the capacity of my bladder caused me to wake at night and remember more dreams. Similar results (if you don't want the consequences of pregnancy, or lack the anatomy) would probably be obtained by drinking a lot of water before sleep. Placing a small child, who needs to eat at intervals, next to you in the bed is also an effective method. moink ( talk) 15:13, 28 February 2008 (UTC)
hi,
is there anything you can do to make your hair grow faster........eg foods you can eat?
thanks, -- 84.67.199.152 ( talk) 21:43, 26 February 2008 (UTC)
Could a Shadow Dexterous Hand be used to replace a human hand if you lost one in an accident? If so, could you go further and replace a whole arm or leg with an air muscle limb, or even build a complete robot? DTWATKINS ( talk) 23:54, 26 February 2008 (UTC)