Innovative Corner

in #science6 years ago

Wind- mill.jpeg

PINWHEEL WIND TURBINE

Make a pinwheel to see how a very basic turbine work to produce electricity see how wind create mechanical force.

Requirements-

*Cardstock
*Pencil with eraser
*Straight pin or thumbtack
*Small electric motor
*Alligator clip leads or insulatered copper wire
*1-5 volt bulb & bulb holder
*Strong fan
Method to make

Part 1-

1-cut a piece of Cardstock into a 4 'square'

2-Use a rular to draw diagonal lines from corner to corner. Make a small mark each line 3/4 of an inch from centre of the square.

3-Cut along the diagonal line towards the center until you reach the 3/4 inch mark.

4- Fold the corners marked with circles on the pattern into the centre and stable the layers together When all four blade are folded in stick a straight pin or thumbtack through all the layers at the centre. Push the pin through the eraser on the pencil to finish the pinwheel.

5- Hold the pinwheel infront of a fan and watch it spin the currents of air comming from the fan catch the curved part of the blade causing them to spin
Wind- mill.jpg

Part-2

  1. Remove the pinwheel from the pencil and punch the shaft of the motor through the centre.If your motor came with a little cap for the end of the shaft put that on to hold the pinwheel in place.If you dont have a cap use a piece of clay or cork.

2- Use the alligator bulb clip leads to connect the motors wires to the light bulb

3- Now hold the motor/pinwheel close infront of the fan again.Does the bulblight up ?Look closely- you should at least see the filament begin to glow & it depend the size of turbine or motor to much brightness.

What happened-

When you attached the motor to the pinwheel and put it infront of the fan you transformed the motor into a generator which converts mechanical force to electricity.It does this with help of a magnet inside the motor when you made a complete electricity circuit, allowing the electricity to flow from the motor through the bulb and back again.

Note- After the constitution was presented to the constituent Assembly, they took two years. eleven months and seventeen days to pass it.

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