Engineering: The challenge of temperature
http://data.open.ac.uk/openlearn/t207_2
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Creator The Open University
Publisher The Open University
Dataset OpenLearn
Course t207
To t207
Relates to course t207
URL content-section-0
Locator content-section-0
Language en-gb
Published
  • 2011-07-22T09:00:00.000Z
  • 2011-07-22T13:50:00.000Z
  • 2013-12-05T18:55:04.000Z
  • 2016-03-03T10:33:18.000Z
  • 2016-03-08T10:03:12.000Z
  • 2016-03-17T13:35:00.000Z
  • 2016-03-17T14:01:37.000Z
License
  • Copyright © 2013 The Open University
  • Copyright © 2016 The Open University
  • Licensed under a Creative Commons Attribution - NonCommercial-ShareAlike 2.0 Licence - see http://creativecommons.org/licenses/by-nc-sa/2.0/uk/ - Original copyright The Open University
Type
Label Engineering: The challenge of temperature
Title Engineering: The challenge of temperature
Description
  • <p>In this unit we examine one factor that very often seems to be found skulking around close to problems and solutions: temperature.</p><p>Almost whatever we do, wherever we are, temperature changes. Stay in the same spot and you'll find daytime and night-time temperatures can be markedly different. You may even find significant changes in temperature during the day. When moving you can encounter more rapid variations. For example, an aircraft might leave a tropical runway where the air temperature is thirty degrees Celsius and climb within minutes to a height where the outside temperature is minus fifty degrees.</p><p>It turns out that almost all the properties of a material change with temperature. So, anything you make will to some extent be sensitive to temperature. That sensitivity needs to be known about. &#x2018;What if the temperature changes?’ is an excellent prompt for engineers.</p><p>There are advantages and disadvantages to thermal sensitivity and some of these are explored in her. On the one hand, we can do amazing things with thermal energy, such as moving matter around within a solid without risking melting or changing the basic shape of a component. On the other hand, it can be a real nuisance. It can make magnetic disks &#x2018;forget’. It can leave materials &#x2018;sapped’ of their strength. Just a few degrees of temperature change can make some things unrecognisably different. Temperature really does present a universal challenge that must be faced – ignore it at your peril.</p><p>This unit is an adapted extract from the Open University course <span class="oucontent-linkwithtip"><a class="oucontent-hyperlink" href="http://www3.open.ac.uk/study/undergraduate/course/t207.htm"><i>Engineering: mechanics, materials, design</i> (T207).</a></span></p>
  • Engineering is about extending the horizons of society by solving technical problems, ranging from the meeting of basic human needs for food and shelter to the generation of wealth by trade. This unit looks at the impact of changes in temperature on a variety of objects and looks at the problem of boiling water.<link rel="canonical" href="http://www.open.edu/openlearn/science-maths-technology/engineering-and-technology/engineering/engineering-the-challenge-temperature/content-section-0" /> First published on Fri, 22 Jul 2011 as <a href="http://www.open.edu/openlearn/science-maths-technology/engineering-and-technology/engineering/engineering-the-challenge-temperature/content-section-0">Engineering: The challenge of temperature</a>. To find out more visit The Open University's <a href="http://www.open.edu/openlearn/ole-home-page">Openlearn</a> website. Creative-Commons 2011
  • Engineering is about extending the horizons of society by solving technical problems, ranging from the meeting of basic human needs for food and shelter to the generation of wealth by trade. This free course, Engineering: The challenge of temperature, looks at the impact of changes in temperature on a variety of objects and looks at the problem of how to boil water. <link rel="canonical" href="http://www.open.edu/openlearn/science-maths-technology/engineering-and-technology/engineering/engineering-the-challenge-temperature/content-section-0" /> First published on Thu, 17 Mar 2016 as <a href="http://www.open.edu/openlearn/science-maths-technology/engineering-and-technology/engineering/engineering-the-challenge-temperature/content-section-0">Engineering: The challenge of temperature</a>. To find out more visit The Open University's <a href="http://www.open.edu/openlearn/ole-home-page">Openlearn</a> website. Creative-Commons 2016
  • Engineering is about extending the horizons of society by solving technical problems, ranging from the meeting of basic human needs for food and shelter to the generation of wealth by trade. This free course, Engineering: The challenge of temperature, looks at the impact of changes in temperature on a variety of objects and looks at the problem of how to boil water. <link rel="canonical" href="http://www.open.edu/openlearn/science-maths-technology/engineering-and-technology/engineering/engineering-the-challenge-temperature/content-section-0" /> First published on Fri, 22 Jul 2011 as <a href="http://www.open.edu/openlearn/science-maths-technology/engineering-and-technology/engineering/engineering-the-challenge-temperature/content-section-0">Engineering: The challenge of temperature</a>. To find out more visit The Open University's <a href="http://www.open.edu/openlearn/ole-home-page">Openlearn</a> website. Creative-Commons 2011
  • <p>In this course we examine one factor that very often seems to be found skulking around close to problems and solutions: temperature.</p><p>Almost whatever we do, wherever we are, temperature changes. Stay in the same spot and you'll find daytime and night-time temperatures can be markedly different. You may even find significant changes in temperature during the day. When moving you can encounter more rapid variations. For example, an aircraft might leave a tropical runway where the air temperature is thirty degrees Celsius and climb within minutes to a height where the outside temperature is minus fifty degrees.</p><p>It turns out that almost all the properties of a material change with temperature. So, anything you make will to some extent be sensitive to temperature. That sensitivity needs to be known about. 'What if the temperature changes?' is an excellent prompt for engineers.</p><p>There are advantages and disadvantages to thermal sensitivity and some of these are explored in her. On the one hand, we can do amazing things with thermal energy, such as moving matter around within a solid without risking melting or changing the basic shape of a component. On the other hand, it can be a real nuisance. It can make magnetic disks 'forget'. It can leave materials 'sapped' of their strength. Just a few degrees of temperature change can make some things unrecognisably different. Temperature really does present a universal challenge that must be faced – ignore it at your peril.</p><p>This OpenLearn course is an adapted extract from the Open University course T207 <span class="oucontent-linkwithtip"><a class="oucontent-hyperlink" href="http://www3.open.ac.uk/study/undergraduate/course/t207.htm?LKCAMPAIGN=ebook_&amp;amp;MEDIA=ou"><i>Engineering: mechanics, materials, design</i></a></span>.</p>