Learn how to build your own simple DIY air pump using a plastic syringe, a small DC motor, and basic materials you may already have at home. This easy-to-follow tutorial walks you through each step, ...
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How did the injection given in hospitals start, know its full history, and how much is the business worth?
History of Injection: The syringe used for injection started with animal urine, which has now become a global business worth billions of rupees. Know its complete history. History of Injection: We all ...
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