Maybe so but this is not relevant to the iPlayer which has to include some kind of DRM for the idea to get off the ground. Without DRM anyone could download the MPEGs and make them available elsewhere. The BBC uses a lot of third party content that it does not own and is only licensed to broadcast in the UK. Making it available in MPEG format for all to download would mean owning the content outright which would be very very expensive and beyond the means of us Brits paying our licence fee.
Realistically the BBC had two basic choices given it had to use DRM:
1. License a DRM from a third party (Apple won't let theirs be used by third parties).
2. Write its own.
For an interesting and enlightening discussion on the iPlayer you could do a lot worse than look at TheRegister, e.g. http://www.theregister.co.uk/2007/11/06/highfield_tactics/
Who was responsible for SonicStage then which ships with recent Sony Minidisc recording hardware? I guess this must have been heavily influenced by the music people as this software can even prevent you copying your own recordings from analogue sources.
I have a load of recordings made on an older Minidisc deck which does not have USB. I can't use my newer Minidisc Walkman to copy these to my PC. Of course I could maybe get around it by copying from Minidisc to CD but this just shows how pointless this copyright protection is. No wonder Minidisc is effectively dead now and it's a great shame.
I think the important thing to remember in all this is that hydrogen is effectively a battery technology and is not a fuel source. The earth has few reserves of hydrogen - it has to be created by electrolysis of water which requires a lot of power. There are other small-scale methods such as fractional distillation of air but I hope you get my point. It's simply weight efficient and cheaper for motor transport to store the energy in hydrogen that can be burned than it is in batteries. Rechargeable lithium ion batteries are expensive and the charging time may be unacceptable.
So the reductions in CO2 rather depend on whether it's more efficient or less polluting to electrolyse water using energy from power stations some of which burn oil, store the hydrogen and burn it than it is to refine oil, store it and burn it.
The emissions at the car may be reduced by 90% but the total emissions will be similar.
Slashdot Mirror
Maybe so but this is not relevant to the iPlayer which has to include some kind of DRM for the idea to get off the ground. Without DRM anyone could download the MPEGs and make them available elsewhere. The BBC uses a lot of third party content that it does not own and is only licensed to broadcast in the UK. Making it available in MPEG format for all to download would mean owning the content outright which would be very very expensive and beyond the means of us Brits paying our licence fee. Realistically the BBC had two basic choices given it had to use DRM: 1. License a DRM from a third party (Apple won't let theirs be used by third parties). 2. Write its own. For an interesting and enlightening discussion on the iPlayer you could do a lot worse than look at TheRegister, e.g. http://www.theregister.co.uk/2007/11/06/highfield_tactics/
Who was responsible for SonicStage then which ships with recent Sony Minidisc recording hardware? I guess this must have been heavily influenced by the music people as this software can even prevent you copying your own recordings from analogue sources. I have a load of recordings made on an older Minidisc deck which does not have USB. I can't use my newer Minidisc Walkman to copy these to my PC. Of course I could maybe get around it by copying from Minidisc to CD but this just shows how pointless this copyright protection is. No wonder Minidisc is effectively dead now and it's a great shame.
I think the important thing to remember in all this is that hydrogen is effectively a battery technology and is not a fuel source. The earth has few reserves of hydrogen - it has to be created by electrolysis of water which requires a lot of power. There are other small-scale methods such as fractional distillation of air but I hope you get my point. It's simply weight efficient and cheaper for motor transport to store the energy in hydrogen that can be burned than it is in batteries. Rechargeable lithium ion batteries are expensive and the charging time may be unacceptable.
So the reductions in CO2 rather depend on whether it's more efficient or less polluting to electrolyse water using energy from power stations some of which burn oil, store the hydrogen and burn it than it is to refine oil, store it and burn it.
The emissions at the car may be reduced by 90% but the total emissions will be similar.