Wednesday, February 26, 2020

Space Shuttle Challenger Disaster Essay Example | Topics and Well Written Essays - 1000 words

Space Shuttle Challenger Disaster - Essay Example Tears not because of the tragedy itself, but the event resonates far into the deep recesses of what we know is true in every one of us. We all dream. We then work to bring forth the dream into reality, into actuality. And something goes wrong and how with the vision, the exhilaration of the dream - in contrast with how tragic our efforts become, we realize how fragile we are. For in itself, the dream, the challenge is made of sterner stuff. It' s as if reaching towards the dream is something that is beyond our control - for if it isn't, we would all stop telling fairly tales to children, knowing that in reality, it's not always a happy ending. (NASA) and of Morton Thiokol, the company which produced rocket motors of space shuttles (Greene p. 1; Berkes par. 6) fought for. The engineers supposedly voiced opposition to launching Challenger into orbit that fateful day. Challenger's launch of its 10th mission was already delayed for days by the cold weather and NASA's management was eager to launch despite concerns by engineers to delay take-off because the O-ring sealants (like washers in a faucet) in the rockets were not tested for complete reliability most especially during cold weather. Despite their opposition, the NASA management proceeded with the take-off and what the engineers feared came to pass. Hot gases from Challenger's right-side rocket leaked through the faulty O-ring and led to the explosion of the spacecraft. Like the mythical Icaru... No matter what their real personal lives might have been - we look at them like icons, the chosen ones to at the juncture of history. And looking at a picture of them smiling, with their blue astronaut suits, and holding their space headgear - we think of how the human race have stretched democracy into space. We are gladdened that of the seven, two were women - one of them a non-specialist, one an African-American and one an American of Japanese descent. These seven on board Shuttle Mission 51L, the tenth of Challenger's orbit into space was to do something probably routine for astronauts -which was to carry some equipment like satellite and cameras to observe something so ordinary as Halley's comet (Greene p. 1). What was extraordinary and made it special was that it was the first time a teacher was going into space and she was to be there especially to teach the first outer-space classroom lesson. Sharon Christa McAuliffe, 37 at that time, was chosen from the ranks of 11,000 teachers across the country to fly on Challenger. Her often quoted line from her Challenger Disaster astronaut application form was "I watched the Space Age being born and I would like to participate" (NASA website).1 The commander of the crew was Francis Scobee, 47 who enlisted in the U.S. Air Force and originally trained as an engine mechanic but longed to fly (NASA website). He pursued his dream and managed to fly 45 types of aircraft. As a NASA astronaut, he was part of the crew of the fifth Challenger obit flight who managed to retrieve and repair a satellite in orbit, the Solar Maximum Satellite. For Michael J. Smith, 41, the 10th Challenger mission where he was space shuttle pilot was his first flight into space. A member of the U.S.

Monday, February 10, 2020

Compare PHP and Python Essay Example | Topics and Well Written Essays - 1000 words

Compare PHP and Python - Essay Example The code written in the PHP language is interpreted by the PHP processor module using a web browser which displays a web page based on the HTML (Hypertext Markup Language) and embedded PHP code. It is pertinent to mention here that the PHP code can be embedded into the HTML (Screenshot 1 shows the HTML embedded PHP code file) file as well as it can be an external / separate file (Screenshot 2 shows the PHP separate file code) having an extension of ‘. PHP’. The PHP is an open source language, meaning that the PHP is free software under the PHP license whose source code can be amended as per the requirements. The PHP can be deployed on almost every operating system which can be a standalone computer system or a web server. Python is one of the high level languages (the high level languages are those programming languages which are more understandable to the human beings and does sends commands directly to the hardware). The Python language was initially created by Guido van Rossum in 1980, however, the first program was implemented in 1989. The Python is a general purpose language; however, it is over and over again used as a scripting language, however, it can also be utilized as non scripting language. As compared to the programming languages, the Python language emphasizes code reliability, as the Python programmers can express functionalities in less number of code lines comparatively. By utilizing the third party tools include: Pyinstaller and Py2exe make the Python language capable of executing standalone programs. The Python language can be deployed to the computer system as well as the application server, moreover, a number of operating systems provide support to the Python Language. The Python is an open source programming language, which can be deployed free of charge. In my opinion, there are huge numbers of similarities between both the