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« : 12 апреля 2018, 14:12:13 »
ADVANTAGES AND DISADVANTAGES OF SPACE EXPLORATIONS.
ADVANTAGES:
1. IT ALLOWS PEOPLE TO KNOW MORE ABOUT THE UNIVERSE.
ASTROLOGY GIVES TO PEOPLE DEEPER UNDERSTANDING ABOUT THE UNIVERSE AND PROVIDES THEM MORE INFORMATION ON THE WORLD IN WHICH THEY LIVE. IT HELPS THEM TO UNDERSTAND THAT THEIR PROBLEMS DON'T CONSIST REALLY THAT EXHAUSTION IN THE GREAT SCHEME OF THINGS, REMINDING THEM OF THAT HOW SUCCESSFUL THEY HAVE TO BE THE PART OF THE EXTENSIVE AND MAJESTIC UNIVERSE.
2. IT PAVES THE WAY TO ADVANCED TECHNOLOGY.
SCIENTISTS ARE ALWAYS DEVELOPING NEW TECHNOLOGY FOR SPACE PROGRAMS, BUT THE GOOD NEWS IS THAT THESE NEW INNOVATIONS AREN’T JUST USEFUL FOR ASTRONAUTS AND SPACE MISSIONS. THEY CAN ALSO BE USED IN OTHER INDUSTRIES AND, IN FACT, HAVE ALREADY LED TO THE DEVELOPMENT OF MODERN PRODUCTS AND GADGETS THAT MANY PEOPLE USE. THESE INCLUDE GPS SYSTEMS (WHICH IS USED IN MANY SMARTPHONES, TABLETS, AND SAT-NAVS), TEFLON-COATED FIBERGLASS (WHICH IS NOW USED AS ROOFING MATERIAL), AND BREAST CANCER TEST IMAGING.
3. IT CAN OFFER A SOLUTION TO MANY PROBLEMS.
ASIDE FROM COLLECTING INFORMATION ABOUT THE OUTER SPACE, MANY SPACE EXPLORATION PROGRAMS ARE USED TO ADDRESS SOME OF THE PROBLEMS THAT PLAGUE MODERN SOCIETY. SOME PROGRAMS, FOR EXAMPLE, HELP SCIENTISTS LEARN MORE ABOUT THE EARTH’S ATMOSPHERE AND KNOW HOW TO BETTER PREDICT WEATHER AND NATURAL DISASTERS. OTHERS, MEANWHILE, FOCUS ON LOOKING FOR PLANETS THAT CAN SUPPORT HUMAN LIFE, WHICH MAY BE THE SOLUTION TO THE EARTH’S GROWING POPULATION.
DISADVANTAGES:
1. IT ENDANGERS THE LIVES OF ASTRONAUTS.
IT CAN’T BE DENIED THAT SPACE EXPLORATION PUTS ASTRONAUTS’ LIVES IN DANGER, EVEN IF THEY KNOW WHAT THEY ARE SIGNING UP FOR. IN FACT, MANY ACCIDENTS HAVE HAPPENED OVER THE YEARS AND HAVE RESULTED TO NUMEROUS INJURIES AND EVEN DEATHS. THE APOLLO 1 MANNED MISSION, FOR EXAMPLE, ENDED WHEN ITS CREW MEMBERS WERE KILLED IN A CABIN FIRE AS THEY CONDUCTED A LAUNCH REHEARSAL TEST. THE CHALLENGER SPACE SHUTTLE EXPLODED LESS THAN TWO MINUTES AFTER LIFTOFF, KILLING ALL OF ITS SEVEN CREW MEMBERS.
EVEN IF MISSIONS DON’T ALWAYS END UP IN DISASTERS, THEY CAN STILL EXPOSE ASTRONAUTS TO A WIDE RANGE OF HEALTH PROBLEMS. STUDIES HAVE SHOWN THAT SPENDING LONG PERIODS OF TIME IN ZERO GRAVITY CAN SERIOUSLY AFFECT A PERSON’S CARDIOVASCULAR AND MUSCULOSKELETAL SYSTEMS AND MAKE HIM PRONE TO VARIOUS ILLNESSES. EXPOSURE TO HIGH-ENERGY IONIZING COSMIC RAYS, WHICH ARE PRESENT IN SPACE, CAN LEAD TO THE DEVELOPMENT OF CANCER.
2. IT LEADS TO POLLUTION IN SPACE.
MANY PEOPLE MIGHT SCOFF AT THE IDEA OF POLLUTING SPACE; AFTER ALL, THE UNIVERSE IS VAST AND INFINITE, AND IT WOULD TAKE BILLIONS OF YEARS TO FILL IT WITH JUNK. BUT THAT’S THE THING: EVEN IF IT WOULDN’T FILL UP RIGHT AWAY, IT CAN STILL BE POLLUTED WITH THE DEBRIS THAT SPACE MISSIONS LEAVE BEHIND, SUCH AS SATELLITES, ROCKET LAUNCH BOOSTERS, AND OTHER KINDS OF EQUIPMENT. AT THE VERY LEAST, THESE DEBRIS WILL HARMLESSLY FLOAT AROUND THE UNIVERSE AND JUST RUIN BEAUTIFUL SPACE PHOTOS WITH THEIR PRESENCE. IN THE WORST CASE SCENARIO, THEY CAN INTERFERE WITH PLANETARY ORBITS, CAUSE ACCIDENTS FOR FUTURE SPACE MISSIONS, AND PAVE THE WAY TO OTHER KINDS OF PROBLEMS.
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