Does anyone have info about solar water distillers?

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I see you

Is there a way to purify water using the sun's energy? An affordable method everyone could have?
Thanks you guys, I'd like to make a miniature one for ALL people to be able to collect rainwater, then purify it. I'll be researching your ideas.
Yse, Jim, I was trying to open a dialog where someone could come up with a way for peoples around the world to have access to their own drinking water derived from rain water. thank you all who responded, I "lerned" something already. Anyone else want to answer before Jim get 10 points?
Sorry about the spelling errors, everyone.

Answer
Water has the highest specific heat of any liquid below the molecular weight of 100 - it really takes a lot of energy to boil water!!! Using solar energy to boil water is certainly possible, but are you really interested in creating drinking water, or distilling water?

Someone in India needed an affordable way to make lots of drinking water inexpensively (I saw this on TV). What they came up with was a "germicidal" UV lamp and a shallow aluminum tray for the water to pass under the lamp, thereby "purifying" the water to drinking water quality by killing all the bacteria.

The germicidal lamp fits in an ordinary fluorescent fixture, and is very efficient on power. His task was to design the parts that would certify that all the bacteria was killed. The design will treat LARGE volumes of water economically; something a distiller won't do.

One more important point to consider: a true steam distillation process is intended to remove the minerals from the water as well as everything else. You need to think this through very carefully and research what happens when people drink (only) distilled water.

Because of difference between salinity in people's body and the distilled water, the distilled water will strip the electrolytes (minerals) from your body. This is not a good thing! If you distill the water, you'll have to add some minerals back before it would be drinking water quality.

This is why the bottled water at the store offers both drinking water (water with small amounts of minerals) and steam distilled water (for your steam iron, where you don't want any minerals)

One other person in Yahoo! Answers wanted to purify water using UV LED technology - UV LEDs operate at even lower power that UV germicidal bulbs, and could be driven by solar cell/battery combinations. UV LEDs are just now becoming available, and will soon be affordable.

This is assuming that the water you have is drinkable but just needs to be affordably cleaned of bacteria.

Water that is brackish or saline would need to be steam distilled, but that is expensive due to the energy required. There are other water treatments available (osmosis, filtering, dissolved mineral removal such as iron, hard water treatment, etc), but these cost money.

Why do US companies dominate the internet businesses and global business?

computer

Why do US companies dominate the internet businesses?
i asked the following question here a couple of minutes ago and recieved a huge respons to the post
Why do you think the US are dominating the internet business?
I will like you to give 10 reasons why you think US companies are in complet dominion of all viable internet business : yahoo , google , ebay ,amazon , paypal , msn , youtube , myspace etc . why do you think is hard for start ups to come from countries that are not US . what is the magic ingredient found in the US that is not found else where . what is the magic wand that the US has that is hard to be copied else where .
why is it that Europe , china , india canada can't make it ?
Give your reasons in 10 precise answers
you can check some of the respons below
http://answers.yahoo.com/question/index?...

the whole thing boils down to :open market innovation , VC , . my question is , if all this are true why can't canada and UK be also on the lead why can't canada and uk ?

Answer
Countries in Asia make money from copying U.S. inventions.

The U.S. invented the internet, and all of the computer languages used to run the internet.

Americans invented most of the stuff in the world.

AMERICAN INVENTIONS:
(Everything on this list is proven to be an American invention.)
(This was posted by reporter_on_the_streetsss.)
Electronic televisions, email, transistors, microwave oven, tobacco cigarette, refrigerator, lcd screens, plasma TVs, computer chips, electronic calculators, VCR, harddrive, internet, lightbulb, telephone, cellphone, satellite communication, portable communication radios(walkie talkie), digital satellites, fluorescent light, stabilized rubber(shoes, condoms, tires, etc), nuclear powerplants, moon rovers, martian rovers, digital music(a/d converters), inkjet printers, laser printers, copy machine, best modern medicines, iron furnace stove, electric stove, air conditioning, airplane(engine-powered), animation (motion-picture), aspartame(sugarless sweetner), assembly line, automated teller machine (ATM), prepared baby food, bag (flat-bottomed paper), bandage (adhesive), barcode, barbed wire, blood bank, blow dryer, bra, bread slicing machine, portable camera, motion picture camera, food cans, can openers, cardboard (corrugated). carbon 14 dating, cash register, cat litter, mail order catalogs, breakfast cereal, chewing gum, laptop computer, personal computer, oral contraceptives, cotton gin, crayons, credit card, heart defibrillator, smoke detector, artificial diamond, disposable diapers, dishwasher, drinking fountain, electric chair, modern rocket, escalator, fiberglass, freeze dried food, frozen food, genetic engineering, electric guitar, coat hanger(wire), electric iron, jeans, jello, kevlar, laundromat, laser, lipstick, LED, electric motor, morse code, nylon, paper towel, parking meter, phonograph (records), petroleum jelly, Post-it Notes, potato chips, car radio, electric razor, safety razor, revolver (gun), remote control(television), roller coaster, safety pin, Scotch tape, skyscraper (steel-frame), stapler, first successful steamboat, drinking straw, sunscreen, tampon(cotton), teflon, telegraph, toilet tissue, disposable tissue, tractor, automatic signal lights, viagra, video games, washing machine(electric), digital watches, zipper, High level computer languages, computer databases, handheld computers, optical recording and playback (used in DVD and CD ), glass bottle making machine, CCD(digital chips used in all digital cameras) which are used to convert light into pictures(also used in missiles made by the U.S., Russia, and Europe), DSL, CAT Scans "diagnostic X ray systems", laser ranging, laser multiplexing, air brakes, silicon solar cells, digital light processor, digital signal processor(used in all digital telephones), fiber optic wire, nearly all types of lasers, MASER, first laser medical treatments, microprocessor, automated telephone switches, radiator, modem, word processor, ethernet, computer mouse and computer windows, etc.

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What should i look for when purchasing a new television?

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katy l

I want to purchase a new 42" flat screen tv. What should I look for (i.e. no less than 1080p, how many Hz??) I don't want to buy a product just because of its name because I know there are great products out there and I would not be paying for the logo.

Answer
Consider plasma if you're going to be watching a lot of things with fast motion: sports, video games, movies.
Consider plasma if contrast, color, and black level are important to you, although LED isn't bad at these either.
Consider plasma if you need a wide viewing angle (i.e. people will be sitting fairly far to the left, right, or below the TV).
Consider LCD or LED if light weight is important to you.
As far as resolution, 720p is perfectly acceptable at 42 inches, although you may want to buy a 1080p if you have (or intend on getting) a Blu-Ray player, Xbox 360, PS3, or some other 1080p source (HD air broadcast, cable and satellite is all 720p or 1080i except for a few special pay-per-view things)
If you're getting a plasma, don't worry about the refresh rate (e.g. 600 Hz) as plasmas (unlike LCDs) provide instantaneous response times that you're used to on the time-tested CRT sets. If it's LCD or LED, get at least 120 Hz for a 42 inch, and consider a higher number (e.g. 240 Hz) especially if you plan on watching a lot of fast-action things.
In general, higher contrast ratio is better, but numbers can be misleading, so the only way to know which TV is better is to look with your own two eyes. How do blacks look? Like true black, or like washed-out grays? How do dark colors show? Does white look truly white? Do the colors look all weird when you look at the screen from an angle?

What are some real, effective, and reasonably priced energy saving systems for a new construction house?

Q. Building a new house in a year or so. I would like to make it as green as possible, but it has to look like a conventional house (no massive solar panels or windmills) and I won't spend a fortune on fringe technology that has no real-world returns. What's the best bang for the buck? Geo thermal HVAC? On demand hot water heaters? LED lighting? Any other ideas that are reasonably priced, and produce a real energy savings? (pay for themselves in five years or so...)

Answer
Ever been in a basement that's not heated in the winter time? It's cool, but not unbearable. How about a basement that's not air conditioned in the summer? It's generally not as hot as the rest of the house.

I'm not saying build your house underground. That doesn't meet your standards. The concept of having a 2 story home with a basement comes to mind though. The way it would work is your first floor would be 1/2 underground 1/2 above. The basement of course would be under it, and the second level would be above the first of course. It would be preferred that a home like this be built on a hill, and the second floor would make it not look weird.

In the US, most homes are built using 2X4 wall beams. It would cost some extra coin, but switching that up to 2X6 wall beams would give room for more insulation. More insulation will increase the efficiency dramatically. A minor problem arises in purchasing doors for the home. This problem isn't a problem though because the door openings can be reduced to 2X4, or your contractor will probably know where to get doors that fit. Windows are designed different from doors so this wont be a problem for them. This also allows for larger ductwork through the walls. This will reduce the load on your central heating/cooling system's blower saving some coin. Use of 2X6 framing also opens a new avenue for adding custom features like in-wall shelving.

It's fairly common to see a room with a switch by the door controlling an outlet for a lamp to be plugged into. Having switches like this installed all over your house to cut off power to things like TVs when no-one is in the room would save some nice coin. You will need outlets that are not switch controlled too for things like clocks, and cable boxes/satellite receivers that have interactive services like TV Guide and battery chargers. That's your chance to learn from my mistake. I converted my home so that all the outlets ran on switches, and purchased battery powered clocks. I had to undo some of it so my cable box would work right.

Often less is more, and more is less. I purchased an air conditioner rated for the size of room I have, and it didn't cut it. It never was cool in the room, and my power bill went up by $100 a month. I decided to upgrade it, and bought one 3 times the size for $200 more. This reduced my electric bill by $50 a month from what the first cost me. In 4 months it paid for itself.

Installing multiple lighting systems in each room can save you big money if used right. It can also be more comfortable to the eyes. A low power lighting system for regular use, and a task lighting system for when you need the extra light. I use just a 10 watt bulb in my hallway for normal everyday traffic. I can see well enough to get through it. When I need to vacuum the hallway though I turn on a 100 watt bulb, and can see it very well. This system is also very good to have in the bathroom because when someone is making use of the toilet, they don't tend to need extra light. When they are using the mirror though they want a lot more light. It applies very well in the kitchen too. Under cabinet lights can give the task based lighting needed to cook, and over-head lighting will allow a person to pass through the kitchen without stubbing their toe on a cabinet, or stepping on that fork someone dropped.

A switch at every door! Some rooms have multiple doors, and often is the case that someone will walk into the room on one side, and turn the light on, then as they walk out on the other side there is no switch so the light gets left on. It doesn't cost much to install a multiple switch situation.

Having all the plumbing in a home in one central area can be a big savings also. Not so much in energy as in water which also costs money. In some homes, you turn on the water in the bathroom or kitchen, and have to wait for hot water to come out. The closer everything is together the shorter the wait, and the less water wasted.

Having a closed in porch can save you big too. In the winter when it's windy, you will open the porch door, and enter, and while you take the step across the porch to the front door of your house the porch door will close behind you blocking the wind as you enter your home.

Whether or not to install a geothermal HVAC system in your home will depend on what it costs in your area to install. It may not be a viable option. LED Lighting can be an option, but I suggest you try it in your current home before investing in a whole house system. You may or may not like it, or may only want it in certain rooms/situations. On demand hot water systems are efficient for 2-3 people living in a home. If you have more, then the system will use more power heating the water than the older system using a tank. This is because it takes a lot of power to heat water right now. The older system instead uses less power to heat it over a period of time.

Appliance placement can save you money too. Most washers and dryers are set up side by side. Well most people wash their clothes in cold water, and the dryer uses heat to dry the clothes. Washers and dryers are not insulated. Separating them will keep the cold water from sucking the heat out of the dryer, so the dryer wont have to work as hard. A simple insulated wall between the 2 the height of the washer and dryer can make a huge difference. Insulating the walls around your hot water heater can make a difference when you are using the air conditioning. Everything in this paragraph is not common even in new homes.

When choosing your appliances remember less is more once again. Less features like digital controls means less power used. That microwave with the digital clock sitting in your kitchen, well it uses power 24/7 whether you are using it or not. The time with a timer that you turn the knob to use doesn't. When it's off, it is off. Gas cook stoves that use electronic ignition instead of a pilot lighting system don't sit there generating heat when your air conditioning is on, and using gas. Refrigerators with through the door ice and water avoid constantly opening the freezer to get ice out. If someone in your home bakes a lot, then an in-wall double oven system will probably make them happier, and since they can use both at once, the heat from 1 will make the other more efficient. They will also spend less time using 2 at once rather than using 1 longer. This will help cut down on cooling bills in the summer.

Insulating all the pipes in your home can help too.

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