الدكتور والتر لوين الفيزياء و الضوء شرح رائع جدا هكذا الاساتذة الرائعون يجعلك تحب المادة وتعجب بها باسلوب ذكي ومرح

This video is for educational purposes only.<br><br>I did not make this film, i am uploading it for educational purposes.<br><br>The audio in this clip is for educational purposes only.<br><br>I do not own the audio in this video.<br><br><br>This documentary was made, produced and is completely owned by ( insert here).<br><br>I do not own anything in this video.<br><br>I am not claiming this video as my own in any way.

برنامج مع هاكيت -الخردة الحلقة 02 HD with Hackett