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1- بيع السلعة وعدم أظهارعيبوبها بحجة عدم معرفة العيب الشيخ د.عبدالله العبيد
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1- بيع السلعة وعدم أظهارعيبوبها بحجة عدم معرفة العيب

Subject:
Arts and Humanities
Education
Law
Religion and Islam
Social Science
Material Type:
Lesson
Module
Provider:
اليوتيوب
Author:
الشيخ د.عبدالله العبيد
Date created
16-جمادي الآخرة-1439
1- ماهي الطريقة التي ينصح بها الشيخ أد.سعد الخثلان في دراسة الفقة المقارن
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الطريقة التي ينصح بها الشيخ أد.سعد الخثلان في دراسة الفقة المقارن

Subject:
Arts and Humanities
Education
Religion and Islam
Social Science
Material Type:
Lecture Notes
Lesson
Module
Provider:
اليوتيوب
Author:
الشيخ أد.سعد الخثلان
Date created
6-جمادي الآخرة-1439
How to extract Caffeine from Tea (Classic DCM Method)
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Extractions of certain solids can be performed by utilizing the different chemical ...

Extractions of certain solids can be performed by utilizing the different chemical properties of various solvents. The initial solvent used in the extraction of caffeine is water. Caffeine is sparingly soluble in water at ambient temperatures but highly soluble in water at 100oC. The boiling of coffee beans and tea leaves dissolves caffeine and other materials to produce coffee and tea beverages. We will take advantage of the solubility properties of caffeine in water to create an aqueous solution of caffeine at room temperature. First, the caffeine will be dissolved from tea leaves by boiling them in water. The solution will be allowed to cool to room temperature. Although the solubility of caffeine is low at room temperature; the caffeine will remain in solution and must be extracted with another solvent.

Subject:
Physical Science
Material Type:
Activity/Lab
Provider:
اليوتيوب
Author:
NileRed
Date created
8-شعبان-1439
Microwave Antenna Alignment
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The Path Align-R™ test set is a high performance, complete test solution ...

The Path Align-R™ test set is a high performance, complete test solution designed to quickly and accurately optimize the transmission path between two antennas.

Subject:
Applied Science
Business and Communication
Education
Material Type:
Case Study
Provider:
اليوتيوب
Author:
William TONKIN
Date created
29-جمادي الأولى-1439
Quick Guide to Flipping Your Class (5 Key Strategies)
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Although there is no single way to flip the class, there are ...

Although there is no single way to flip the class, there are steps that will help you get started and take it to the next level! This video explains 5 key steps to flipping and provide tips along the way based upon the classroom experience and graduate research. The video also includes strategies that have worked for other educators throughout the nation that have shared their setbacks and successes over the years.

Subject:
Education
Material Type:
Reading
Teaching/Learning Strategy
Provider:
اليوتيوب
Author:
Tom Driscoll
Date created
13-جمادي الآخرة-1439