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1. ### How can we reverse the rotation of DC motors?

The rotation of dc motor can be reversed by simply interchanging it's supply terminals. The dol starter can perform this job.

4 Answers · Science & Mathematics · 01/03/2013

2. ### Important of knowing the rotation of sugar via polarimetry?

..., you can determine what kind of sugar you have by measuring the amount of rotation through a sugar solution and then comparing to a list of known rotations...

1 Answers · Science & Mathematics · 13/10/2010

3. ### how to make/construct a contra rotation gear box?

... the gears with a chain/sprocket drive, you are changing the rotationi direction. This means that the gear which used to be 3rd...

1 Answers · Science & Mathematics · 08/11/2013

4. ### For an power (electricity) meter, what is the calibration for the spinning wheel below the dials?

The most common calibration is 1 rotation = 7.2 watt-hours. The calibration for your meter should be ...

2 Answers · Science & Mathematics · 12/02/2007

5. ### Rotation of a tire?

circumference of the tire = pi*d ==> 3.14*27 = 84.78 inches. 1.0 miles = 5280 ft = 63,360 in. rotations = 63360 / 84.78 = 747.35 revolutions/mile

1 Answers · Science & Mathematics · 25/11/2006

6. ### Need help with a 3d rotation equation?

...where, c = cos(theta) s = sin(theta) As you didnt mention clockwise or anticlockwise rotation substitute theta +50 once and -50 in above matrix.By multiplying above...

2 Answers · Science & Mathematics · 13/03/2013

7. ### when a paper helicopter falls from a height, where does the torque that sets it into rotation come from ?

... helicopter's blades are angled so that their rotation provides lift. If the blades are not spinning...

1 Answers · Science & Mathematics · 05/12/2009

8. ### Where can I find a really cheap motorized rotation stage?

IT would help if you indicated size, load, and rotation rate.... However, try www.sciplus.com and/or www.herbach.com which are surplus outfits; if they have somehting you can use that'll be the cheapest place to get it.

1 Answers · Science & Mathematics · 02/11/2013

9. ### Does the earth gravitational and axis affect the rotation of a flywheel,?

... gyro forces do no work on the rotor so they don't affect its rotation directly. The only effect would be increasing the side force on the ...

3 Answers · Science & Mathematics · 21/08/2013

10. ### How the direction of rotation of single phase induction motor can be reversed?

The starting direction of rotation may be reversed simply by exchanging the connections of...

3 Answers · Science & Mathematics · 28/12/2010