Thursday, February 22, 2018

usb battery charger

Simple USB battery charger
Simple USB battery charger
Helical Gear

Mechanical Gear : Helical Gear

HELICAL GEAR Helical gears are similar to the spur gear except that the teeth are at an angle to the shaft, rather than parallel to it...
Electrical Properties

Electrical Properties

How the USB works?

How the USB works?

Bronzes

Bronzes : Copper-tin alloys

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