Are you crazy? Giving control of nuclear plants to the french is the best possible solution. Nearly 80% of their electricity is from nuclear, and they have by far the best safety record of any country with significant nuclear power. They are doing it correctly. Predictably it can be expensive to do things properly so they have not seen much benefit in terms of the cost of said electricity, but there really is no other choice once all the fossils run out, and the earlier you jump on the bandwagon the better.
Very simple:
Circumference = Diameter (4 millionths of a meter) times Pi -->
4*(1e-6) * 3.141 = 1.257e-5 metres.
Circumference x rotation speed = edge speed -->
1.257e-5 * 6e8 = 7540 meters/minute (since rotation speed was given in revs/minute).
Which is 126 m/s, not very fast at all, only 281 mph. So if it was spinning at that rate in contact with the ground without slipping it would outrun all conventional cars but not any jet aircraft.
When it comes to taking video the limiting factor on video quality/resolution in a handheld device is almost always the processing power needed to encode said video in realtime, not the optics, which is why most phones with 5+MP cameras can save pictures at the full resolution of the CCD but videos are often limited to 640x480 at 25fps because that is all the processor can handle. For example my netbook with 1.3MP webcam takes far better quality videos than my sony ericsson phone with 5MP camera simply because it has the power to encode the video at a higher resolution in realtime.
Of course if you have the storage space available to store the video uncompressed then its less of a problem but again we're talking a handheld device where storage space is by no means plentiful.
And simply stuffing in a faster processor won't help because the power requirements mean a larger battery which means a larger device, and the whole point in these things is compact size.
What does the code do except from change the filetype extension from.torrent to.png and back and what is stopping me from doing that manually? Renaming manually 'example.torrent' to 'example.png' isn't exactly a hassle.
If you buy quality DVDs and take good care of them they will quite probably last for decades, perhaps half a century. They are expected to degrade over many years but some of the CDs written back when CDs were first invented are still readable today so nobody really knows how long they might last.
There is a similar problem for HDDs, while in constant use MTBFs are well established, but for a HDD that is written to and then left unpowered for many years, well again nobody really knows because we haven't observed it yet.
I'd say go for both, obviously HDDs have the massive advantage that you can plug one 500GB and write all your data to it all in one go. To store that much on DVDs will take you days or weeks to write to each disc one or even two at a time. I know, I have over 1.5TB of data backed up on DVDs which number over 500 already.
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Are you crazy? Giving control of nuclear plants to the french is the best possible solution. Nearly 80% of their electricity is from nuclear, and they have by far the best safety record of any country with significant nuclear power. They are doing it correctly. Predictably it can be expensive to do things properly so they have not seen much benefit in terms of the cost of said electricity, but there really is no other choice once all the fossils run out, and the earlier you jump on the bandwagon the better.
Very simple: Circumference = Diameter (4 millionths of a meter) times Pi --> 4*(1e-6) * 3.141 = 1.257e-5 metres. Circumference x rotation speed = edge speed --> 1.257e-5 * 6e8 = 7540 meters/minute (since rotation speed was given in revs/minute). Which is 126 m/s, not very fast at all, only 281 mph. So if it was spinning at that rate in contact with the ground without slipping it would outrun all conventional cars but not any jet aircraft.
When it comes to taking video the limiting factor on video quality/resolution in a handheld device is almost always the processing power needed to encode said video in realtime, not the optics, which is why most phones with 5+MP cameras can save pictures at the full resolution of the CCD but videos are often limited to 640x480 at 25fps because that is all the processor can handle. For example my netbook with 1.3MP webcam takes far better quality videos than my sony ericsson phone with 5MP camera simply because it has the power to encode the video at a higher resolution in realtime. Of course if you have the storage space available to store the video uncompressed then its less of a problem but again we're talking a handheld device where storage space is by no means plentiful. And simply stuffing in a faster processor won't help because the power requirements mean a larger battery which means a larger device, and the whole point in these things is compact size.
What does the code do except from change the filetype extension from .torrent to .png and back and what is stopping me from doing that manually? Renaming manually 'example.torrent' to 'example.png' isn't exactly a hassle.
If you buy quality DVDs and take good care of them they will quite probably last for decades, perhaps half a century. They are expected to degrade over many years but some of the CDs written back when CDs were first invented are still readable today so nobody really knows how long they might last. There is a similar problem for HDDs, while in constant use MTBFs are well established, but for a HDD that is written to and then left unpowered for many years, well again nobody really knows because we haven't observed it yet. I'd say go for both, obviously HDDs have the massive advantage that you can plug one 500GB and write all your data to it all in one go. To store that much on DVDs will take you days or weeks to write to each disc one or even two at a time. I know, I have over 1.5TB of data backed up on DVDs which number over 500 already.