Toothbrushes come in numerous designs, sizes and types. You get the most popular manual ones, the battery ones and the electric ones. What they have in common is that you still need toothpaste to brush your teeth. But now there is a new solar powered toothbrush –Soladey J3X – aims to clean your teeth without using toothpaste.

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There are many places in the developed and developing world where water is not safe to drink. In fact, many travel guides tell you only to drink bottled water to be safe. Even at home, many people, when they travel locally, simply buy bottled water for health reasons. As such, the Bobble is an environmentally friendly solution to the large carbon footprint left by using bottled water.

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In an exciting development in the medical field, Steve Collins and Arthur Duo developed a foot prosthetic which actually uses energy which is otherwise lost. People, who have physical problems with the ankle, need to wear an artificial foot, which is quite heavy.

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If you travel a lot whether it is in the great outdoors or are a global traveler, you will be aware that all water is not safe for drinking. It may great to have water from a bubbling brook or stream, but you do not know how clean the water and what kind of consequences you may have to face afterwards.

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Many people are totally phobic about receiving injections and children are even more frightened and hate the very sight of needles. While some needle free injections are available, notably ones for diabetics, Teva has recently announced its Needle Free Tjet ® device specially for kids.

This one is specially made for kids suffering from growth hormone deficiency and needing to take regular injections of somatropin, which Teva manufactures as TEV-TROPIN®. The Tjet penetrates the stratum corneum (outermost layer skin) and is delivered into the subcutaneous (below the skin) tissue in two seconds through a tiny opening in the skin less than one third the size of a 30-gauge needle.

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If you are fortunate enough to have a swimming pool in your house, you will know that it involves tending to and cleaning. While filtration is usually taken care of and the water is kept relatively clean with the addition of chorine, you must be aware that chlorine is a chemical. It can dry the skin and even change the color of your hair (if it has been recently colored).

The Solar Powered Pool Purifier is easy to use as you just put it in the pool. Because it uses solar power, it starts working immediately the sun comes out. It works by releasing mineral ions into the water which make it safe and this way the use of chlorine is reduced by 80 per cent as are its harmful side effects.

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When you drink water, you know you should be drinking clean and clear water, free from any germs. There are many water borne diseases and even in developed countries, the water may not be absolutely pure. It is all very well to drink bottled water, but bottled water is extremely environmentally unfriendly – there are too many electricity and plastic and transport costs involved in bottled water.

As such if you can install a simple water purifier at home, you can save money and improve or safeguard your health. The Zuvo Water Purator is a simple device which is easy to install.

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Increasingly, older people tend to need hearing aids because their hearing capabilities go down. A hearing aid usually requires charging via batteries and/or electricity, but now Howard Weinstein has designed a hearing aid which can work on solar power.

You may well feel that hearing aids do not consume much power and since they are medical aids, it is okay to use that power. However, there are poor people in many countries who may not have access to electricity and changing batteries may be too expensive, even if they are available.

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Everybody knows that air is getting increasingly polluted with dust and smog particles, air-borne bacteria and viruses and more. Whether you are sensitive or not to the dust, dirt and allergens in the air, wouldn’t you like to breathe cleaner air? Dust mites and other invisible-to-the-naked-eye pollutants can be found inside sofa sets, upholstery, carpets, curtains, and beddings, no matter how clean you keep your house and how often you vacuum.

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There are many kinds of blindness and there is always ongoing research to help the blind see. Researchers at Stanford University have developed a new artificial retina implant which uses solar power to help the blind see.

Earlier implants had a major limitation – there was no way to power the chip inside. The researchers came up with an environmentally friendly solution: using miniature photovoltaic cells to provide power to the chip as well as to transmit data through the eye to the brain. The new device has great promise to help people afflicted by the loss of photoreceptor cells by using the power of the sun.

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