Home Definition and 516 Threads

I have moved in today, the move wasn't easy as i couldn't get standard furniture through the door so i had to find flat pack, the flat is in Southam town just on the outskirts but within an easy 5 min walk to shops, all in all i am quite happy with it.

I am interested in attempting to build a home theater amplifier, but I have a few questions. What is the voltage range from the audio outs on something like a DVD player or processor? Also, what is a typical current or voltage range from the speaker connection terminals?

I recall a physics teacher demonstrating an experiment where he transferred a droplet of oil to the surface of water and carried out some calculations to determine the radius of a carbon atom. I was hoping to replicate the experiement- However I forget the details. Has anyone seen this...

I often see website ads for home electricity meters that check on home power usage in order to help save costs by monitoring what is used so homeowners can adjust their usage to cut costs. However, is there a much more sophisticated meter available that oversees actual home usage and compares...

I'm in the process of replacing 1970's double hung wood windows with modern high efficiency vinyl windows...this is awfully long but I thought others might be able to use the methodology for their own homes if considering new windows...the 30% government tax cedit, up to $1,500 runs out the end...

Hi, I am a Physics student who is studying in a German university. My current term is the fifth and I am going to obtain my Bachelor degree in the summer. My Bachelor thesis will be in nonlinear dynamics, I've started doing some literature research and computer experiments already, and I like...

Homework Statement Two non interacting particles in an infinite potential well. ψn and ψl conditions (n≠l) find <(x1-x2)^2> when: 1-)particles are distinguishable, 2-)particles are indistinguishable bosons 3-)particles are indistinguishable fermions

I brought a small bottle of LCD cleaner & its amazing, leaves no streaks or anything behind. But i go through it like water & its a bit pricey. I generally read the 2 main ways are: Distilled water mixed with white Vinegar. & Distilled water mixed with 70% Rubbing alcohol, some say...

Hello, I would like to be able to heat a nichrome wire with batteries (probably with a D batterie, but if it can be done with AA batteries, it's better, cause it's cheaper). I would like to be able to heat a nichrome wire of about 2 feat long at a temperature similar to the body...

Hello all, This is my first forum post and any problems with the post are openly accepted. I would like a sanity check on my approach to this problem. I have built a permanent magnet three phase AC generator. I need help in properly calculating power values for this. This is for...

A little blue marble, lost in the vastness of space, As inconspicuous as a penny dropped in a lake, Yet it provides a home for the human race. Orbiting a star of just the right temperature, If it were dimmer we could not survive the cold, And if it were hotter we would burn up for sure...

hi all, I'm reasonably competent at physics and electronics but by no means an expert so i hope someone can help me. i'm into wine making and found this very interesting article about how to artificially age wine by passing it through an AC electric field...

Hi I have a problem in detecting whether string is vibrating or not. I'm going to conduct experiment which will investigate impact of different factors on time of decaying of guitar's string oscillations but I have no idea how to measure when oscillations stopped. Acoustic method doesn't work...

Very cool! We just got a new computer that is dedicated almost entirely to the TV. Between Netflix, which charges what I consider to be a nominal fee if one utilizes all of the perks, the ever-growing number of sources and databases that provide free television programs, movies, and...

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What career prospects are there for those of us who don't want to settle down? Are there jobs out there that let us work from home/on the go?

Hi, I've got a friend who's birthday is coming up. She's an aerospace engineer and I was thinking it would be fun to build a small project for her but I'm not sure what. I want it to be specifically aerospace related. I've seen designs for how to build a pocket jet engine, but I wasn't so...

Is it possible to make one of these at home using an everyday glass bottle? If so could anyone tell me how? Thanks

(I think I might have asked this a few years ago...) Looking for a home test for lead. I've got this lump off metal that I'd like to test. I bought a lead test strip but it's inconclusive - it says there's low concentrations of lead even if I follow all directions and test twice using two...

basic E and M from purcells: A change in magnetic field with respect to time, will induce a current in a conducting loop that is located in that changing magnetic field. Does that mean, that if I take a power cord that is plugged into a device while it is running, so that way it is...

I'm making a small-scale aquaponics system at home (except I'm not eating the fish). There might be some random chemicals that will probably leech into the water from the materials I used (plumbing parts degrading/oxidizing, etc.), or had directly added (I used household ammonia to begin the...

For general house wiring. As I understand it, the ground will carry away harmful power when there is a fault in the neutral let's say a wall outlet that has a load plugged into it. What keeps power from going to ground normally? Is the ground only available when a load is plugged into the...

Help Required On Home Project Hi Everyone, Im new to the forum, & I am hoping you maybe be able to help/guide me on a home project but firstly, ...Im 22,currently studying Pharmaceutical Chemistry & an avid rec & tech diver. ...my project is simply (or maybe not) to build a "scooter"...

Hi.I wonder is it possible to create a home made muon or gamma ray detector? And if it is possible would you mind to show me some way? Thanks...

Back from my travels now so thanks to those who ran this for me while I was away. Home Turf[/color][/size] I know we've had a similar contest before, but I fancied revisiting it. Show me your home turf. Your city, your street, anywhere close to where you live or lived. I will post the...

Homework Statement the center field fence in a ball park is 10ft high and 400 feet from home plate. the ball is hit 3 ft above ground. it leaves the bat at an angle of theta degrees with the horizontal speed of 147.67ft/second. find the minimum angle at which the ball must leave the bat in...

hey guys, i realize most people are from the US on this site, but I am from Uk and was wondering if its realistic to study a level maths and physics at home on my own whilst working, that is equivalent to whatever u guys in US need to get before entering university. my intention is to get these...

Hello, First of all, i would like to introduce myself to Physics Forums. I am a Mechatronics Engineering Graduate. Me and my friend have a small project for the house, since we live in a hot area, we decided to design something to cool water at home. We came up with an idea which says that we...

Anyone have a science lab in their home? I'm just curious.

Firstly, I am starting my senior year in Electrical Engineering once school starts, and I feel that I am in dire need of some more "hands on" experience with the equipment. At my uni, the EE degree is split up into a Physics path, and a technology path. I'm thinking that may be a bad idea...

When the three blocks are released from rest, they accelerate with a magnitude of 0.500m/s^2.Block 1 has mass M, block 2 has 2M.What is the coefficient of kinetic friction between block 2 and the table?

hi guys, would it be viable to rig up an exercise bike to run say your tv?

So you're in bed, here a noise downstairs and decide to investigate. You find it's an intruder. What do you do? For me, it's simple. My view is if a person enters my home illegally and with intent to rob/kill/damage my family or property. I will take whatever action is necessary to defend...

like mixing household chemicals together to get a cool reaction to help my brother for the science fair? please don't say baking soda and vinegar half the school is doing that for a volcano.

Hello, this is my first post and i wanted to ask the following: How can you make H2O2 (hydrogenperoxide) yourself, because if saw in the store the other day a aquarium oxigizer (so your fish don't sufficate) wtch uses H2O2 in a percentage of 4.9%, but the stuff costs 5 bucks a bottle and only...

soo... this is my first post and I'd like to start out by thanking the PF people for existing and helping the resting of us out. =P I'd also like to preface my post with, I took physics in high school and that was it. i remember that i really liked it but my career path has taken me more...

All right folks...a little help if you can. I have had a home wireless network for a while. It's between my desktop (the server) and my laptop. It's about as simple as you can get. It has been working fine up until a month or so ago. My desktop has 2 hard drives, both of which I have as...

Homework Statement 5/8x + 1/16x= 9/16 + x Homework Equations The Attempt at a Solution 10x+ x = 9+16 11x=9+16x -5x=9 x= - 9/5 x =- 1.8 Is this correct. I am trying to make sure I am in the right direction Also is f(x) = 2x^2-2x f(0) = I got ) f(-1) I got 4 f(2) Igot...

I finally bought another house. I closed on Monday, which is why you have once again not seen me around all week. No pictures yet. I took some the first day, but they're on my other computer and not yet uploaded to a site where I can share them. Besides, they are the "before" pictures. I'll...

I decided to come back to the small town where I grew up because there is a lot of work in the gold mines. I haven't been here in almost twenty years, but I've got several people who have offered me a place to stay while I'm here. I've also been offered trucks to drive even though I have a...

Hi Guys. I have a problem at home, and it's confusing me! My light bulbs are blowing, not just the filament fusing, but the whole base EC and BN are also arching through! Only when we switch on the light bulb, not when it already burning (on). It has an intense bright light for a split...

hi there, i am trying a project on home automation through a telephone. i am trying to design my own system for this. can u give me some ideas regarding this? any site i should refer? any journal papers i can refer? what is the simulation software i should know for designing this system...

[SIZE="5"]there are pictures and hints missing, view fullo version in the attached file. Below is a short-story of a scenario where you are president of the universe Zaphod Beeblebrox. In order to answer several of the questions below you will need access to appropriate references. You...

I'm working on building a power supply (120VAC to ~12VDC). The Transformer puts out 13.6VAC without any modifications. But once I put on a diode on each side (make into DC) then put on a 1000 microfarad capacitor to eliminate the cosine curve it bumps up to 18VDC. Without said capacitor it...

hi im learning MATLAB at home.So could someone tell me how to do the basic funtions add,subtract transpose,invert matix in the matlab.

energy heating a home? Homework Statement During 2 hours one winter afternoon, when the outside temperature was 4° C, a house heated by electricity was kept at 20° C with the expenditure of 42 kwh (kilowatt·hours) of electric energy. (a) What was the average energy leakage in joules per...

vf= 4(u(t)-u(t-1.8))v I have to find i(t), for the attached circuit. I already evaluated it for t<0. But i a having problems in the rage 0<t<1.8. I am at the point where i have to find the forced response, so o let t tend to infinity (t->infinity). And so the Inductor acts like a short...

Everyday a man comes from work and get out the train, at station, at 5 PM. At the same time, everyday, his wife, driving a car, takes him and they go home. One day, the man leaves his work early and get on the sation at 4 PM. So, he decides to go home walking. On the way home, he meets his...

http://blog.makezine.com/archive/2008/12/teen_with_home_chemistry_lab_mistak.html This is insane. Cops need to get the hell of their high horse. There was no investigation, no looking for evidence before an arrest. How did they get the search warrant? Do judges really believe that anyone...

Hi, I am fresh undergrad student. I have decided to handle all my homework in a printed form, this saves time and allows me to correct stupid mistakes without the need to re write whole pages. I have tried several solutions, but none suits me best: Open Office's math is too slow and as...