مبدأ ارخميدس

To read the English version click here.
توضح هذه التجربة أنه عند وضع جسم ما في سائل، يزيح الجسم كمية من السائل تساوي كتلتها كتلة الجسم نفسه. علاوة على ذلك، فإن حجم السائل المُزاح يساوي حجم الجزء المغمور من الجسم.

To read the English version click here.
توضح هذه التجربة أنه عند وضع جسم ما في سائل، يزيح الجسم كمية من السائل تساوي كتلتها كتلة الجسم نفسه. علاوة على ذلك، فإن حجم السائل المُزاح يساوي حجم الجزء المغمور من الجسم.
توقفت عن التفكير كمبرمج في تلك المرحلة وعدت إلى التفكير كفيزيائي. لقد أذهلني كيف يمكننا محاكاة الظواهر الفيزيائية ببضعة أسطر من التعليمات البرمجية.
These simulations were made using the Adobe Flash/AcrtionScript. You can download them and run then in Windows.
This simulation models Newton’s tube experiment, showing how air resistance affects falling objects. By removing air from the tube and flipping it, users can observe how a feather and a pebble fall differently in air but identically in a vacuum—demonstrating that gravity accelerates all objects equally when air resistance is removed.
Newton’s third law demonstrates that for every action, there is an equal and opposite reaction. This video uses a Jackie Chan movie scene to illustrate the principle: when Jackie pushes his partner (action force), he experiences an equal push back (reaction force), allowing both to escape danger. A creative real-world example of action-reaction force pairs.
If you or your student or child are having difficulties in learning long division, then you will find this simulation comprehensive and instructional, that guides the learner through the process step by step. This application is for long division with remainder. Another application on long division with float quotient is also available in the simulations section.
Looking back, I wish I had access to tools like DeepSeek. During my development process. In my recent experimenting with this open-source AI model, I’ve found it provides structured, research-paper-like responses with meaningful technical information from the first interaction. This would have significantly streamlined my research phase. Definitely, DeepSeek wouldn’t have appeared if ChatGPT hadn’t existed in the first place. But the super abilities that DeepSeek came with as it came into existence, plus being open-source, makes it super competent to the existing AI tools.