too little for public services‚ including space-flight programs. In early 1970‚ NASA initiated extensive engineering‚ design‚ and cost studies of a space shuttle. These studies covered a wide variety of concepts ranging from a fully reusable manned booster and orbiter to dual strap-on solid propellant rocket motors and an expendable liquid propellant tank. Each concept evaluated development risks and costs in relation to the suitability and the overall economics of the entire system. On January 5
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management bodies of companies associated with this project than natural reasons. The whistleblowing led to the loss of billions of dollars and more importantly loss of 7 innocent lives. The space shuttle was propelled by the two attached Solid Rocket Boosters (SRBs) and an external fuel tank. The SRBs were joined to the External Tank. aOnce the SRBs ignited‚ hot gases heated the rubber O rings and they eroded to seal the joints. SRB joint design had a serious flaw in it and the engineers knew it meant
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its seven crew members. The spacecraft disintegrated over the Atlantic Ocean‚ off the coast of central Florida‚ United States‚ at 11:39 a.m. EST (16:39 UTC). Disintegration of the entire vehicle began after an O-ring seal in its right solid rocket booster (SRB) failed at liftoff. The O-ring failure caused a breach in the SRB joint it sealed‚ allowing pressurized hot gas from within the solid rocket motor to reach the outside and impinge upon the adjacent SRB attachment hardware and external fuel tank
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Making a killing: Hong Kong photo exhibition tells African big-game hunters to hold fire PUBLISHED : Thursday‚ 07 August‚ 2014‚ 10:43am UPDATED : Thursday‚ 07 August‚ 2014‚ 12:15pm Photographer David Chancellor offers a unique and often visceral insight into South Africa’s hunting safaris in his exhibition “The Game is Killing the Game”. Hosted by The Salt Yard‚ an arts space in Kwun Tong‚ the photo series calls for a reflection on hunting for sport when many species are in decline. Animal
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The Challenger Disaster By: Kathy Neuner & Jeremy Rider Executive Summary Many factors must be examined to find the underlying reason for the horrible disaster of the space shuttle Challenger. We will cover both the technical causes to the disaster and the communication breakdown with NASA. We will also look at the outside pressure that NASA was receiving from the media‚ congress and the military. Recommendations for NASA and anyone in the communication field will be given. These recommendations
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the engine. When the challenger was launched the O-ring failed to keep all the gases inside the engine‚ the gases started to scape‚ when the leakage permitted enough gases to escape the fire that the rocket booster has normal from ignition was what made the explosion. The fire of the rocket booster finds its way inside to the engine and made the fuel ignite. They did not have the chance to even know that something was wrong‚ the rocket exploded. The temperature was not taken into consideration‚ engineers
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type of orange juice will have the most vitamin C to the point where it will change colors. HYPOTHESIS: Orange juices labeled A will have the most enzyme concentration because it looked thicker than the others. Therefore I thought it will need more Iodine whilst orange juice labeled B & C will need less Iodine because they looked lighter. Variables Independent: the amount of Iodine that was added to the the different types of orange juice Dependent: The color of the orange juice changed to dark
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activities in different fruit juices Aim: To investigate the protease activities in different fruit juices Background info: Fruit such as pineapple‚ kiwi fruit‚ papaya and guava contain proteases (in different amounts)‚ which can speed up the breakdown of proteins. As milk-agar plate is a milk protein‚ so when it is incubated with fruit juices containing proteases‚ the milk protein will be broken down and clear zones will appear around the wells containing different fruit juices. Thus‚ the higher the
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Fermented Plant Juice as Deodorizer in Piggery Waste In Partial Fulfillment of the Requirements in Biotechnology Presented to the Faculty of Santa Barbara National Comprehensive High School Special Science Class – Biotechnology Santa Barbara National Comprehensive High School By: Sepacio‚ Ma. Gelene Rose Sondia‚ Mary France Sarroza‚ Shiela Mae July 2013 Abstract The major problem of people is the foul odor in pig farms. It contains noxious ammonia and hydrogen sulfide and this can
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Aim This experiment is to determine the vitamin C content in different brands of processed fruit juices. Hence‚ compare the vitamin C content in the experimental results with the manufacturer’s claim and to find out the best buy. Principle Vitamin C (ascorbic acid) is a reducing agent‚ the vitamin C content of processed fruit juices can be determined by oxidizing ascorbic acid‚ C6H8O6 to dehydro-L-ascorbic acid‚ C6H6O6. A reagent that is particularly good for the oxidation is an aqueous solution
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