Pakistan Scence Club Newsletter 
500 Watt 12DC to 220 VAC Power Inverter (UPS)Construction in Urdu Power Inverter (UPS) Construction in Urdu this is a simple inverter you can make your own if you have Little Bit of Knowledge about electronics this inverter can run 1 watt to 500 watt appliance 500 Watt 12 VDC to 220 VAC Power Inverter (UPS) uninterruptible power supply (English)… 
Stethoscope Project Make your own stethoscope and check your heart rate before comparing it to others. You might not be a real doctor but you can still use some of their medical equipment as part of this fun science project. Check your heart beat when resting and after physical activity, how fit are you? Check Your Heart Rate What… |
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