Hairdryers were invented in 1890 but did not become widely available until 1925 when the first models produced only 100 watts of heat. Throughout the mid-20th century, hairdryers saw improvements in design and power output, reaching 500 watts by 1960 and utilizing safer materials by 1970 under new guidelines. Modern hairdryers now produce up to 2000 watts of heat, are lightweight thanks to advances in plastics, and feature portable designs.
The document discusses international trademark protection through various international agreements and regional trademark systems. It describes the Paris Convention, Madrid Agreement, Madrid Protocol, Trademark Law Treaty, TRIPS, and regional systems including the European Union Community Trademarks, MERCOSUR, Andean Pact, APEC, and OAPI in Africa. The goal is a single, uniform worldwide trademark system through the harmonization of laws and expansion of trademark rights and coverage.
The first comprehensive studies on root canal anatomy were published in the 1840s, with further contributions in the late 19th century using techniques like sectioning teeth and injecting materials into canals. In the early 20th century, improved methods like injecting celluloid or paraffin allowed for more detailed studies of variations. Landmark publications in the 1950s and 1960s further characterized the complex and variable nature of root canal anatomy using wax models and clearing techniques.
Sistemas de Instrumento Único: WaveOne, Reciproc, SAF [Prof. Marco Versiani, ...Prof Dr. Marco Versiani
O documento discute três instrumentos para preparo e modelagem do sistema de canais radiculares: WaveOne, Self-Adjusting File e Reciproc. Descreve as características técnicas de cada um como seção transversal, ângulo helicoidal, superfície radial e taper. Também fornece dados sobre o desenvolvimento histórico dos instrumentos de 1992 a 2011 e seus respectivos preços.
A summary of Ferdinand de Saussure's "Course in General Linguisitcs". Largely inspired by the following great blog-entry: http://theendsa.blogspot.com/2007/05/who-hell-is-ferdinand-de-saussure.html
Ferdinand de Saussure: The Father of LinguisticsSilvia Lee
Ferdinand de Saussure was a Swiss linguist considered the father of linguistics. He taught courses on Sanskrit, Gothic, Old High German, and Indo-European languages at the University of Geneva. Saussure developed the concepts of langue and parole, the system of a language and its usage, and emphasized the arbitrary nature of the linguistic sign. He viewed language as a system of relations and differences that is studied through both synchrony, the present state, and diachrony, its historical development.
The document provides a broad overview of the field of linguistics, covering several topics including:
- Comparative methods and prominent linguists such as Noam Chomsky
- Subfields like phonology, morphology, syntax, semantics, and pragmatics
- Sociolinguistics and how languages change over time
- Generative grammar and Systemic Functional Linguistics
- Semantics and pragmatics, discussing how meaning depends on context
- Linguistic typology and classifying languages by structural features
My books- Learning to Go https://gumroad.com/l/learn2go & The 30 Goals Challenge for Teachers http://amazon.com/The-Goals-Challenge-Teachers-Transform/dp/0415735343
Resources at http://shellyterrell.com/games
Hairdryers were invented in 1890 but did not become widely available until 1925 when the first models produced only 100 watts of heat. Throughout the mid-20th century, hairdryers saw improvements in design and power output, reaching 500 watts by 1960 and utilizing safer materials by 1970 under new guidelines. Modern hairdryers now produce up to 2000 watts of heat, are lightweight thanks to advances in plastics, and feature portable designs.
The document discusses international trademark protection through various international agreements and regional trademark systems. It describes the Paris Convention, Madrid Agreement, Madrid Protocol, Trademark Law Treaty, TRIPS, and regional systems including the European Union Community Trademarks, MERCOSUR, Andean Pact, APEC, and OAPI in Africa. The goal is a single, uniform worldwide trademark system through the harmonization of laws and expansion of trademark rights and coverage.
The first comprehensive studies on root canal anatomy were published in the 1840s, with further contributions in the late 19th century using techniques like sectioning teeth and injecting materials into canals. In the early 20th century, improved methods like injecting celluloid or paraffin allowed for more detailed studies of variations. Landmark publications in the 1950s and 1960s further characterized the complex and variable nature of root canal anatomy using wax models and clearing techniques.
Sistemas de Instrumento Único: WaveOne, Reciproc, SAF [Prof. Marco Versiani, ...Prof Dr. Marco Versiani
O documento discute três instrumentos para preparo e modelagem do sistema de canais radiculares: WaveOne, Self-Adjusting File e Reciproc. Descreve as características técnicas de cada um como seção transversal, ângulo helicoidal, superfície radial e taper. Também fornece dados sobre o desenvolvimento histórico dos instrumentos de 1992 a 2011 e seus respectivos preços.
A summary of Ferdinand de Saussure's "Course in General Linguisitcs". Largely inspired by the following great blog-entry: http://theendsa.blogspot.com/2007/05/who-hell-is-ferdinand-de-saussure.html
Ferdinand de Saussure: The Father of LinguisticsSilvia Lee
Ferdinand de Saussure was a Swiss linguist considered the father of linguistics. He taught courses on Sanskrit, Gothic, Old High German, and Indo-European languages at the University of Geneva. Saussure developed the concepts of langue and parole, the system of a language and its usage, and emphasized the arbitrary nature of the linguistic sign. He viewed language as a system of relations and differences that is studied through both synchrony, the present state, and diachrony, its historical development.
The document provides a broad overview of the field of linguistics, covering several topics including:
- Comparative methods and prominent linguists such as Noam Chomsky
- Subfields like phonology, morphology, syntax, semantics, and pragmatics
- Sociolinguistics and how languages change over time
- Generative grammar and Systemic Functional Linguistics
- Semantics and pragmatics, discussing how meaning depends on context
- Linguistic typology and classifying languages by structural features
My books- Learning to Go https://gumroad.com/l/learn2go & The 30 Goals Challenge for Teachers http://amazon.com/The-Goals-Challenge-Teachers-Transform/dp/0415735343
Resources at http://shellyterrell.com/games
The document discusses the concept of reusability in instructional design and technology. It addresses questions like can resources be found, may they be used, will they work, and can they be used in a way that works for individuals. Standards like SCORM aim to improve reusability through metadata, content models, and packaging. For design to be reusable, content should be adaptable to different contexts and uses, and components should be independent and granular. Considerations include language, structure, pedagogy and presentation.
The document discusses the concept of reusability in instructional design and technology. It addresses questions like can resources be found, may they be used, will they work, and can they be used in a way that works for individuals. Standards like SCORM aim to improve reusability through metadata, content models, and packaging. For design to be reusable, content should be adaptable to different contexts and uses, and components should be independent and granular. Considerations include language, structure, pedagogy and presentation.
25. Electric Dipole Radiation Falling Ring Magnetic Field Demonstration
Magnetic Field Series Wires TeachSpin Apparatus
3D 立體視覺模擬圖形
動態模擬實驗影片
小組實驗
MIT TEAL
Technology-enabled active learning
科技促進主動學習
2/實驗