Can You Drink Heavy Water - Deuterium Oxide Safety

You need ordinary water to live, but have you ever wondered whether or not you can drink heavy water? Is it radioactive? Is it safe? Chemical Composition and Properties of Heavy Water Heavy water has the same chemical formula as any other water—H2O—with the exception that one or both of the hydrogen atoms are the deuterium isotope of hydrogen rather than the regular protium isotope (which is why heavy water is also known as deuterated water or D2O). While the nucleus of a protium atom consists of a solitary proton, the nucleus of deuterium atom contains both a proton and a neutron. This makes deuterium about twice as heavy as protium, however, since its not radioactive, heavy water is not radioactive either. So, if you drank heavy water, you wouldnt need to worry about radiation poisoning. Are Small Quantities of Heavy Water Safe? Just because heavy water isnt radioactive doesnt mean its completely safe to drink. If you ingested enough heavy water, the biochemical reactions in your cells would be affected by the difference in the mass of the hydrogen atoms and how well they form hydrogen bonds. You could consume a single glass of heavy water without suffering any major ill effects, however, should you drink any appreciable volume of it, you might begin to feel dizzy. Thats because the density difference between regular water and heavy water would alter the density of the fluid in your inner ear. How Heavy Water Affects Mitosis in Mammals While its unlikely you could drink enough heavy water to really harm yourself, the hydrogen bonds formed by deuterium are stronger than those formed by protium. One critical system affected by this change is mitosis, the cellular division used by the body to repair and multiply cells. Too much heavy water in cells disrupts the ability of mitotic spindles to equally separate dividing cells. Theoretically, youd have to replace 20 to 50% of the regular hydrogen in your body with deuterium to experience symptoms ranging from distressing to catastrophic. For mammals, replacing 20% of the bodys water with heavy water is survivable (although not recommended); 25% causes sterilization, and about 50% replacement is lethal. Other species tolerate heavy water better. For example, algae and bacteria can live on 100% heavy water (no regular water). The Bottom Line Since only about one water molecule in 20 million naturally contains deuterium—which adds up to about five grams of natural heavy water in your body and is harmless—you dont really need to worry about heavy water poisoning. Even if you did drink some heavy water, youd still be getting regular water from food. In addition, the deuterium wouldnt instantly replace every molecule of ordinary water in your body. Youd need to drink heavy water for several days to see a negative result, so as long as you dont do it longterm, its okay to drink. Fast Facts: Heavy Water Bonus Facts Bonus Fact 1: If you did drink too much heavy water, even though heavy water is not radioactive, your symptoms would mimic radiation poisoning. This is because both radiation and heavy water damage the ability of cells to repair their DNA and replicate.Bonus Fact 2: Tritiated water (water containing the tritium isotope of hydrogen) is also a form of heavy water. This type of heavy water is radioactive. Its also much rarer and more expensive. Its created naturally (although very infrequently) by cosmic rays and can also be produced in nuclear reactors by humans.

Analysis Of The Movie The Concrete Jungle - 1525 Words

Bob Dylan once said New York was a city where you could freeze to death in the midst of a busy street and no one would notice. The concrete jungle is rough, harsh, dirty and dangerous; yet my parents believed it to be fanciful and beautiful, a place where my brother and I could make all of our dreams come true. It was a typical Thursday evening, the wind was blowing, the neighbors were playing loud salsa music downstairs and the garbage men were outside talking about pay day and banging the garbage cans together. Mommy was working late, Dad probably on the A-train on his routinely long ride back home from work, and my brother Josh a few blocks down at his friend Joseph’s house – probably playing video games or causing havoc somewhere. Having the house to myself meant freedom and ultimate peace. I had Usher’s Confessions album on blast, indulging in some delicious junk food, engrossed by Fresh Prince of Belair episode re runs; all while sitting on the computer cha ir in the living room surfing the web with nothing but panties and one of my Dad’s old T-shirts on. The 2000’s were some of the best years of my life. I had more CD’s and VHS cassettes than anyone on the block and it was the era of some of the best music and TV shows of mankind. The only downfall though was that using the internet at that time wasn’t as easy as it is today. Having Dial up Internet connection didn’t allow the luxury of using the internet and phone at the same time; but since I was home alone, I didn’tShow MoreRelatedFull Metal Jacket Film Analysis1767 Words   |  8 PagesFilm Analysis Within every man resides good and evil; which quality manifests itself is determined by how one is raised and views the world. 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Freakonomics Crime and Abortion free essay sample

Mohammed 2 egalized abortion would have been 50% more likely than average to live in poverty. † This statistic that researchers discovered reinforced the belief that if a woman did not want to have a child because of personal reasons or because she was not ready and if there was an abortion ban, the child would most likely grow up in a poor household and have a higher risk of engaging in criminal activity once they reached adulthood. It is reasoned that because abortion was legalized twenty years before, an entire generation of children with a higher risk of becoming criminals were not born and that’s why the crime rate dropped. The fallacy that is apparent when attempting to explain a crime drop with an abortion increase is that the two are simply correlated and not necessarily causal. The authors refute that claim by providing evidence that there is a link between abortion and crime. We will write a custom essay sample on Freakonomics Crime and Abortion or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page â€Å"Sure enough, the states with the highest abortion rates in the 1970s experienced the greatest crime drops in the 1990s, while states with lower abortion rates experienced smaller crime drops† (4). The evidence regarding state data is pretty compelling especially when put in the framework of post-Roe v. Wade and the generational gap that follows the Supreme Court decision. Although there seems to be a link between abortion and the crime rate, it all comes down to how a person’s own beliefs will influence them to interpret the data. Conclusions can be drawn to support different viewpoints and once the moral implications of abortion are taken into consideration, then it no longer becomes a logical argument. Works Cited Levitt, Steven D. Stephen J. Dubner. Freakonomics. New York, Harper Collins, 2005.