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Does a hard drive weigh more when full..? - Page 7

post #61 of 190
Quote:
Originally Posted by PCCstudent View Post

This is like asking if a blank DVD weighs less that one that has a movie on it.No.But it has been established that electrons have mass.There could be a question created dealing with if a component weighs more or less based on electron charge.This is not one of those questions,and the bathrom scale would not aid in your proof.
Th only problem is that a burnt DVD DOES weigh less...

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post #62 of 190
Thread Starter 
Quote:
Originally Posted by 3930K View Post

Th only problem is that a burnt DVD DOES weigh less...
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Lol.
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post #63 of 190
Yes, 1GB weighs approximately 100 grams. So a 2TB HDD should be around 20 tons when full. That is if I did the maths correctly.
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post #64 of 190
Magnetism has no weight last time i checked.
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post #65 of 190
Since the DVD is "burnt" by scoring the conversion of mass law is brought into play.The weight is the same.The DVD weight question is asked and answered here.
http://en.wikipedia.org/wiki/Wikipedia:Reference_desk/Archives/Language/2007_March_6
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post #66 of 190
Quote:
Originally Posted by 3930K View Post

If my thinking's right every time one bit's changed then the hard drive will weigh a tiny bit more due to E=MC2. EDIT: Only while the magnet is swapping to the other polarization.

But full, no writing, and empty, no writing, should be the same.

Quote:
Originally Posted by PCCstudent View Post

Since the DVD is "burnt" by scoring the conversion of mass law is brought into play.The weight is the same.The DVD weight question is asked and answered here.
http://en.wikipedia.org/wiki/Wikipedia:Reference_desk/Archives/Language/2007_March_6
No. when a DVD is burnt bits are lasered off it.
post #67 of 190
It seems to be truly accurate (and who would want any less) it should be established if the DVD is commerically burnt or home burnt.
If you read the article Compact disc, you will see that for recordable CDs, their surfaces are coated with a substance whose properties may be altered by heat or light. None of the substance is lost or gained. Its properties merely change through the application of energy. (After edit conflict: Jfarber may be right about burning plastic. But you would not be making grooves with your home computer. CDs with grooves (beneath the plastic) would be made in a special manufacturing facility
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post #68 of 190
Quote:
Originally Posted by PhilWrir View Post

Magnetism has no weight last time i checked.
It has no mass, however it can cause weight.
 
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post #69 of 190
Quote:
Originally Posted by Art Vanelay View Post

It has no mass, however it can cause weight.

If mass A and mass B are in the same environment they will weigh the same. Weight is mass x gravity (or something like that) but it can be affected by putting it in something like water. Lets say mass A is magnetized and mass B isn't then if they are in the same environment they will both weigh the same.
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post #70 of 190
www.youtube.com/watch?v=WaUzu-iksi8

He put this into words better than I can

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