Tuesday, March 17, 2020
Why Oppose Healthy Living essays
Why Oppose Healthy Living essays The United States is known worldwide for many reasons; one of which is our focus on health, and everything related. Our nations mindset has developed us into addicts focused on everything healthy. Diets and techniques for the best workout flood the airwaves and stream into our homes like a raging river. We the fanatics feel that everything affects our health. Aches and pains are never overlooked, if we get a headache a hospital visit may be necessary. This may be extreme however, it is not detrimental; many lives every day are saved because these small manageable things are looked into with vigor by the general population. Many people are so interested with health and the need for it in America for this simple reason. America is nearly the unhealthiest country on the face of the earth. We have good reason to be worried about all the obscene problems. America is obviously not unhealthy because of poor doctors or health care. However, most of America is unhealthy because of the demand for fast food, cheap cigarettes, and bars down every side street. America is unhealthy because we over indulge in the luxuries given to us because of our global strength and strong economy. One of these luxuries may be our strong health care system but we have reasons to be worried. When dealing with the one object we cannot replace, should we be careless with it. Every day checking into those small aches and pains that appear to be nothing, these actions save lives. Sometimes those small pains could have been the beginning to cancer, hepatitis or many other terminal illnesses. However these illnesses can be treated with their early detection. We as a nation are so involved with our health because of all the problems that are related with it. People would rather have a worry free life than be constantly plagued with the idea that they may be dying for whatever reason. This is because sickness affects everyone at some time or an...
Sunday, March 1, 2020
Learn the Basics About Rocky, Dusty Planet Mars
Learn the Basics About Rocky, Dusty Planet Mars Mars is one of the most fascinating planets in the solar system. Its the subject of a much exploration, and scientists have sent dozens of spacecraft there. Human missions to this world are currently in planning and might happen in the next decade or so. It may be that the first generation of Mars explorers are already in high school, or perhaps in college. If so, its high time we learn more about this future target! The current missions to Mars include the Mars Curiosity Lander, the Mars Exploration Rover Opportunity, the Mars Express orbiter, the Mars Reconnaissance Orbiter, the Mars Orbiter Mission, and Mars MAVEN, and the ExoMars orbiter.à Basic Information about Mars So, what are the basics about this dusty desert planet? à Its about 2/3 the size of Earth, with a gravitational pull just over a third of Earths. Its day is about 40 minutes longer than ours, and its 687-day-long year is 1.8 times longer thanà Earths.à Mars is a rocky, terrestrial-type planet. Its density is about 30 percent less than that of Earth (3.94 g/cm3 vs. 5.52 g/cm3). Its core is probably similar to Earths, mostly iron, with small amounts of nickel, but spacecraft mapping of its gravity field seem to indicate that its iron-rich core and mantle are a smaller portion of its volume than on Earth. Also, its smaller magnetic field than Earth, indicates a solid, rather than liquid core. Mars has evidence of past volcanic activity on its surface, making it a sleeping volcano world. It has the largest volcanic caldera in the solar system, called Olympus Mons.à Mars atmosphere is 95 percent carbon dioxide, nearly 3 percent nitrogen, and nearly 2 percent argon with trace quantities of oxygen, carbon monoxide, water vapor, ozone, and other trace gases. Future explorers will need to bring oxygen along, and then find ways to manufacture it from surface materials.à The average temperature on Mars is about -55 C or -67 F. It can range from -133 C or -207 F at the winter pole to almost 27 C or 80 F on the day side during summer. A Once-wet and Warm World The Mars we know today is largely a desert, with suspected stores of water and carbon dioxide ice under its surface. In the past it may have been a wet, warm planet, with liquid water flowing across its surface. Something happened early in its history, however, and Mars lost most of its water (and atmosphere). What wasnt lost to space froze underground. Evidence ofà dried ancient lakebedsà haveà been found by theà Mars Curiosityà mission, as well as other missions.à The apparently history of water on ancient Mars gives astrobiologists some idea that life might have gotten a toehold on the Red Planet, but has since died out or is holed up beneath the surface.à The first human missions to Mars will likely occur in the next two decades, depending on how the technology and planning progresses. NASA has a long-range plan to put people on Mars, and other organizations are looking into creating Martian colonies and science outposts as well. Current missions in low-Earth orbit are aimed at learning how humans will live and survive in space and on long-term missions. Mars has two tiny satellites which orbit very close to the surface, Phobos and Deimos. They could well come in for some exploration of their own as people begin their in-situ studies of the Red Planet.à Mars in the Human Mind Mars is named for the Roman god of War. It probably got this name due to its red color. The name of the month March derives from Mars. Known since prehistoric times, Mars has also been seen as a god of fertility, and in science fiction, it is a favorite site for authors to stage stories of the far future.à Edited by Carolyn Collins Petersen.
Subscribe to:
Posts (Atom)