Silicon is the second most common element in the Earth’s crust, after oxygen. However, aside from its non-organic use by certain sea sponges and microorganisms, very little silicon is used by Earth’s biology, despite making heavy use of other common elements, such as carbon, hydrogen, iron, magnesium and oxygen. This has presented a long-standing puzzle for scientists: why would nature ignore such an otherwise useful substance?
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Due to a regional drought in 2007, a previously-unexplored portion of the ancient Greek city of Bathonea, situated on the shore of Lake Kucukcekmece in modern-day Turkey, was exposed, and is now accessible for archaeologists to excavate. One of the major finds made through the dig at Bathonea was the verification of a previously-unsubstantiated story of an invasion from the Avar Empire in 646 A.D. But, wars long forgotten aside, the site also yielded evidence of far more beneficial activities: the large-scale production of medicines, including some that are still in use today.
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Researchers at NASA have developed a new substance that generates minute amounts of electricity, for use in a bandage that takes advantage of an electrically-based healing process. This new substance, a polymer called polyvinylidene fluoride (PVDF), produces a mild electrical current when pressure or heat, such as body heat, is applied to it.

“This method utilizes generated low level electrical stimulation to promote the wound healing process while simultaneously protecting it from infection,” according to NASA.
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Of all the illnesses that one might have to face throughout life, one of the most frightening is that of experiencing a stroke, where a circulatory problem in the brain delivers either too much or too little blood flow to a given region, resulting in impairment in that part of the brain. The effects can be life-changing, resulting in the loss of various functions in the patient, including impairment of vision, speech, and motor functions. However, a new study from Stanford University may be offering researchers a new glimpse into how the brain heals itself, using a stem cell therapy that triggered profound healing effects in its patients, including giving one formerly wheelchair-bound individual the ability to walk again.
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