Glass and ceramics are both made from sand but have different properties. Glass is made by heating sand and cooling it rapidly, resulting in an amorphous solid structure. The most common type of glass is soda-lime glass, made by heating sand, limestone, and sodium carbonate. Adding boron oxide forms borosilicate glass, which is more heat resistant. Lead crystal glass contains lead and is used for fine glassware. Ceramics are made from clay like kaolin, which hardens permanently when heated. Ceramics are very hard, brittle, chemically inert, and resist compression, making them suitable for uses like pottery, tiles, and electrical insulators.
This presentation is all about Glass, its properties,the raw materials used in glass, the manufacturing process for making glasses and then different types of glasses and their properties. :)
Glass is an inorganic product of fusion that has cooled to a rigid condition without crystallizing. Glass is typically hard and brittle, and has a conchoidal fracture. A glass may be colorless or colored. It is usually transparent, but may be made translucent or opaque (such as in white, opal glass). Objects made of glass are loosely and popularly referred to as glass; such as glass for a tumbler, a barometer, a window, a magnifier, or a mirror. The subject of studying glass in materials science is an important part.
This presentation is all about Glass, its properties,the raw materials used in glass, the manufacturing process for making glasses and then different types of glasses and their properties. :)
Glass is an inorganic product of fusion that has cooled to a rigid condition without crystallizing. Glass is typically hard and brittle, and has a conchoidal fracture. A glass may be colorless or colored. It is usually transparent, but may be made translucent or opaque (such as in white, opal glass). Objects made of glass are loosely and popularly referred to as glass; such as glass for a tumbler, a barometer, a window, a magnifier, or a mirror. The subject of studying glass in materials science is an important part.
Glass, properties, manufacturing, applications, advance techniquesSAAD ARIF
Glass is an amorphous material giving the highest transparency at all and its applications are globally versatile in almost every field of science from window panes to advance engineered glass, controlling its transparency by some alteration in the structure, making it bullet proof and giving it high strength, also used for green house effect,
This ppt is made for the f****ng teachers who give there students these foolish work and waste there time....hope..next time the'll nt give these type of HOLIDAY.H.W..
Glass as building material covered all the glasses with best and suitable examples
Please like share and subscribe to my Youtube channel
https://www.youtube.com/channel/UCaUEYWPKaJItDDLpc-ZOl4w
Glass, properties, manufacturing, applications, advance techniquesSAAD ARIF
Glass is an amorphous material giving the highest transparency at all and its applications are globally versatile in almost every field of science from window panes to advance engineered glass, controlling its transparency by some alteration in the structure, making it bullet proof and giving it high strength, also used for green house effect,
This ppt is made for the f****ng teachers who give there students these foolish work and waste there time....hope..next time the'll nt give these type of HOLIDAY.H.W..
Glass as building material covered all the glasses with best and suitable examples
Please like share and subscribe to my Youtube channel
https://www.youtube.com/channel/UCaUEYWPKaJItDDLpc-ZOl4w
"Introduction to Epoxies" by Hubert Monteiro, Royce InternationalRoyceIntl
Hubert presents an introduction to epoxies.
Hubert Monteiro is a Technical Consultant for Royce International and, as an active member of the Thermoset Resin Formulators Association (TRFA) since it was founded 10 years ago, has a unique perspective on the role industry associations play in the technical community.
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Description :
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
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i have made all the slide for civil engineering and poly diploma civil.
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Glass Industry (Chemistry of Glass industry) Pakistan's Glass IndustryMuhammad Abubakar
This Presention is about the chemistry of glass industry.
This includes
Glass
Types of glass
General properties of glass
Manufacturing process of glass
Uses of glass.
Pakistan's glass's economy
import and export of float glass of Pakistan
Dental ceramics/ rotary endodontic courses by indian dental academyIndian dental academy
Indian Dental Academy: will be one of the most relevant and exciting training center with best faculty and flexible training programs for dental professionals who wish to advance in their dental practice,Offers certified courses in Dental implants,Orthodontics,Endodontics,Cosmetic Dentistry, Prosthetic Dentistry, Periodontics and General Dentistry.
The ppt is useful for basic information on Cement, glass & refactories.
All above materials are used as Civil engineering materials.
Study group: Polytechnic level, For First Year students.
It is made from sand(silicone dioxide), soda ash(sodium hydroxide or sodium carbonate), lime, alumina, potassium oxide.
Glass is the most-used cladding material for tall buildings due to its strength, light weight, durability, and wide range of available optical and thermal properties. It has seemingly unlimited optical and aesthetic possibilities.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
Francesca Gottschalk - How can education support child empowerment.pptxEduSkills OECD
Francesca Gottschalk from the OECD’s Centre for Educational Research and Innovation presents at the Ask an Expert Webinar: How can education support child empowerment?
Embracing GenAI - A Strategic ImperativePeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
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2. Glass ~ Glass is made from sand. ~ Glass is normally referred to a transparent , shiny substance that breaks rather easily. ~ Evidence has shown that glass has been used for more than 3000 years ago. ~ The major component of glass is silica or silicon dioxide , SiO 2 . ~ Glass can be made by heating a mixture of silicon dioxide and metal carbonates to a temperature above 1500 c .
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4. Fused Glass ~The simplest type of glass is fused glass. It consists mainly of silica. ~Fused glass is made by heating silica to a molten liquid. The liquid is then cooled rapidly to form an amorphous solid. ~During fast cooling , the SiO 4 tetrahedras do not have time to crystallise out to form a highly regular structure. Thus, the structure resembles that of a liquid state. Hence, glass is a super-cooled glass. ~Fused glass is expensive because exceptionally high temperature must be maintained during its manufacturing.
5. Soda-lime glass ~Soda-lime glass is the most common and earliest used glass. ~It is made by heating sand (silica) with limestone (CaCO 3 ) and sodium carbonate (Na 2 CO 3 ) at around 1500 c and cooling it quickly. ~Soda-lime glass is a mixture of sodium silicate and calcium silicate. The presence of sodium silicate makes the glass melts at a lower temperature.
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15. Uses of Ceramics Artifical teeth ang bones Medical and dental apparatus Inert and non- compressible Spark plugs, insulators in ovens and electric cables Insulating parts in eletrical appliances Electrical insulators Lining of furnase, engine parts Insulation Very high melting point and good insulator of heat. Cooking pots, plates, bowls Kitchenware Chemicaaly inert and non-corrosive Vases, porcelain ware, sinks, bathtubs Decorartive pieces and household items Attractive, easily mouled and glazed Tiles, bricks , roofs, cement, abbrasive for grinding Building materials Hard and strong Examples Uses Properties
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18. Thank You !! Preparing by :- LING MEE CHONG (Group 5)
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