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العلوم
لماذا تبدو هذه الخطوط عكس اتجاهها؟
درس سريع ومختصر في علم الفيزياء
هل تساءلتم يوماً لماذا تبدو الخطوط البيضاء والسوداء المتوازية على الورقة منحنية ومتجهة باتجاه مختلف عند النظر إليها من خلال الكأس الممتلئة؟ إن الإجابة عن هذا السؤال تتكون من شقّين؛ الأول يتعلق بالسائل الموجود في الكأس، والشق الثاني يتعلق بالكأس نفسها. دعونا في البداية نلق نظرةً على بعض أساسيات علوم البصريات وكيف نرى العالم من حولنا. ينعكس الضوء في الحالة الطبيعية من على أسطح الأجسام المختلفة ويصل إلى العين بخط مستقيم. ولكن عندما يعبر الضوء من خلال وسط أشد كثافة من الهواء مثل الماء فسوف تتباطأ سرعته، كما لو أن الماء يكبح حركة الأمواج الضوئية بضربات متكررة على الفرامل. يؤدي…
تمت
عملية الاشتراك بنجاح
عذراً،
عذرا،أنت مشترك مسبقاً بالنشرة البريدية