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Pattern in casting - Mechanical Engineering

Contents What is Pattern in Casting  What is Pattern A pattern in casting is a replica of the object to be cast. It is used to create a mold, which is filled with molten metal to produce the final cast product. The pattern is typically designed to be easily removable from the mold after casting. pattern in casting Type of pattern Wood: This is the most common type of pattern material and is relatively inexpensive and easy to work with. However, it is not as durable as other materials and can warp or rot over time. Metal: Metal patterns are more durable and long-lasting than wood patterns, but they are also more expensive and difficult to work with. Plastic: Plastic patterns are lightweight, easy to work with, and have a good level of dimensional accuracy. They can be used for low to medium volume casting. Resin: Resin patterns are similar to plastic patterns, but they are more durable and heat-resistant. They are also more expensive than plastic patterns. Machined patterns: Thes...
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[ HTML5 ] What is HTML5?


     What is HTML5?
    html5 logo

    HTML5

    HTML5 is the fifth and current version of the Hypertext Markup Language (HTML), the standard markup language for creating web pages. HTML5 was first released in October 2014, and it has since become the de facto standard for building web pages and web applications.

    HTML5 includes new features and elements that make it easier to create web pages and web applications. Some of the key features of HTML5 include:

    1. Semantic elements: HTML5 introduces new semantic elements, such as <header>, <nav>, <article>, and <footer>, which make it easier to structure and organize the content of a web page.
    2. Audio and video support: HTML5 includes built-in support for playing audio and video files, eliminating the need for third-party plug-ins such as Flash or QuickTime.
    3. Canvas element: The <canvas> element allows for the creation of dynamic graphics and animations, making it possible to create interactive and visually engaging web pages.
    4. Form controls: HTML5 includes new form controls, such as the <date> and <time> elements, which make it easier to create forms that are consistent across different browsers and devices.
    5. Offline support: HTML5 includes the Application Cache API, which allows web pages to be cached on the user's device, enabling offline access to web applications.
    6. Improved performance: HTML5 introduces several new technologies, such as WebSockets and Web Workers, which provide improved performance and reduced latency for web applications.

    Overall, HTML5 is a powerful and versatile markup language that enables developers to create web pages and web applications that are rich in functionality, accessible, and responsive across different devices and platforms.

    new tags in html5

    new tags in html5

    HTML5 introduces several new tags that can be used to structure and organize the content of a web page. Some of the new tags in HTML5 include:

    • <article> - used to define a section of a web page that contains independent, self-contained content.
    • <aside> - used to define content that is related to the main content of a web page, but not essential to it.
    • <audio> - used to embed audio content in a web page, with built-in support for different audio formats.
    • <canvas> - used to create dynamic graphics and animations, with the ability to draw shapes and images, and to respond to user input.
    • <canvas> - used to define a command button, such as a checkbox or radio button.
    • <datalist> - used to create a list of options for a form input control.
    • <details> - used to create a widget that the user can open or close to view or hide additional content.
    • <figcaption> - used to provide a caption for a <figure> element.
    • <figure> - used to group related content, such as images, diagrams, and code snippets.
    • <footer> - used to define the footer of a web page or a section of a web page.
    • <header> - used to define the header of a web page or a section of a web page.
    • <nav> - used to define a section of a web page that contains navigation links.
    • <output> - used to represent the result of a calculation or user action.
    • <picture> - used to define a container for a collection of images that can be used to provide different images for different screen sizes or devices.
    • <progress> - used to create a progress bar that displays the progress of a task.
    • <section> - used to define a section of a web page, such as a chapter or a block of related content.
    • <source> - used to define a media source for the <audio> and <video> elements.

    html5 vs html4

    Compare html5 and html4

    HTML5 and HTML4 are both versions of the Hypertext Markup Language (HTML), the standard markup language for creating web pages. However, there are several key differences between the two versions:

    1. Semantic elements: HTML5 introduces new semantic elements, such as <header>, <nav>, <article>, and <footer>, which make it easier to structure and organize the content of a web page. HTML4 does not have these semantic elements and relies on a combination of <div> and <span> elements to structure the content.
    2. Audio and video support: HTML5 includes built-in support for playing audio and video files, eliminating the need for third-party plug-ins such as Flash or QuickTime. HTML4 does not have built-in support for audio and video, and relies on third-party plug-ins to play media content.
    3. Canvas element: The <canvas> element allows for the creation of dynamic graphics and animations, making it possible to create interactive and visually engaging web pages. HTML4 does not have a built-in canvas element and relies on third-party libraries and technologies such as Adobe Flash to create dynamic graphics.
    4. Form controls: HTML5 includes new form controls, such as the <date> and <time> elements, which make it easier to create forms that are consistent across different browsers and devices. HTML4 has a limited set of form controls, and creating forms can be more difficult and inconsistent across different browsers.
    5. Offline support: HTML5 includes the Application Cache API, which allows web pages to be cached on the user's device

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    Pattern in casting - Mechanical Engineering

    Contents What is Pattern in Casting  What is Pattern A pattern in casting is a replica of the object to be cast. It is used to create a mold, which is filled with molten metal to produce the final cast product. The pattern is typically designed to be easily removable from the mold after casting. pattern in casting Type of pattern Wood: This is the most common type of pattern material and is relatively inexpensive and easy to work with. However, it is not as durable as other materials and can warp or rot over time. Metal: Metal patterns are more durable and long-lasting than wood patterns, but they are also more expensive and difficult to work with. Plastic: Plastic patterns are lightweight, easy to work with, and have a good level of dimensional accuracy. They can be used for low to medium volume casting. Resin: Resin patterns are similar to plastic patterns, but they are more durable and heat-resistant. They are also more expensive than plastic patterns. Machined patterns: Thes...
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