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معروف رسرچ اسکالر استاد رحیم پور ازغدی کس طرح کے...
View full lesson: http://ed.ted.com/lessons/can-you-solve-einstein-s-riddle-dan-van-der-vieren...
Given the importance of what is at stake and the seriousness of the situation, we have decided to...
What is matter? The simple answer is that matter is anything that has mass and occupies space....
Heat energy, also called thermal energy or just heat, is transferred from one location to another...