Magnetic induction
Miscellaneous Forums/General Discussion/Magnetic induction This is how Peugeot and renault recharged a type of electric car back in the beginning of the 90's. You didn't need cables to recharge, as the charging station was built underneath the parkingspace, and when you stopped for a red light, the batteries would be recharged as well. I wonder what happened to that concept?
Now, combine wireless power with wireless network and non-mechanical main storage, and you have a truly portable notebook.
In 2009 there won't be any need to use harddisks anymore, if Samsung can finish this 128GB flash drive, which is also about 100 times faster than a harddisk (database servers will experience a huge boost).
http://www.techradar.com/news/computing-components/upgrades/samsung-promises-128gb-flash-drives-by-2009-145842
In 2009 there won't be any need to use harddisks anymore, if Samsung can finish this 128GB flash drive, which is also about 100 times faster than a harddisk (database servers will experience a huge boost).
http://www.techradar.com/news/computing-components/upgrades/samsung-promises-128gb-flash-drives-by-2009-145842
In 2009 there won't be any need to use harddisks anymore, if Samsung can finish this 128GB flash drive, which is also about 100 times faster than a harddisk (database servers will experience a huge boost).
Tiny flaw in your plan.If this product hits the market in 2009, it will be so expensive that hardly anyone will be inclined or able to buy it. So you can add at least three years onto your estimate of 2009 before these things have even a remote hope of becoming mainstream.
Well, if it doesn't cost much more than 100 times the price of a 128GB harddisk, it will be worth the price. People would do anything to get their database servers faster. And the 100 times speed is only one benefit, the others are less power consumption, longer lifetimes (?) due to no mechanical parts, easier replacement, more room to place more flash drives.
Well, if it doesn't cost much more than 100 times the price of a 128GB harddisk, it will be worth the price.
I don't care how fast it is - anybody who would pay £2,500 for a 128GB hard drive either has more money than they know what to do with, or is simply not wired up properly.Pertaining to database servers, I don't consider a faster hard drive to be the sole, or even a major contributing factor to the overall speed. So that's no justification at all. I also don't consider that a faster hard drive will somehow be 'easier to replace'.
Many big IT firms charge you £300 per month for a 128GB harddrive (fiber optic network storage) when they host your server and storage.
This is not really new technology, i have had an electric toothbrush that is charged by induction for years.
Will be interesting to know how 'silent' (EM wise) and how safe this is, especially for people with pacemakers etc.
Will be interesting to know how 'silent' (EM wise) and how safe this is, especially for people with pacemakers etc.
The only thing I can add to this is that when DVD players first came out they were actually in excess of £1,000. now you can get one at Asda for £25.
IPete2.
IPete2.
128GB flash storage systems have been around in the defence sector for a while (at six-digit cost). Everything always gets cheaper. I bought an 8GB SDHC card for less than £35 a month ago. An equivalent product would have cost 4X as much in 2007.
Of course 128GB SSD's are going to become affordable. The rate at which prices drop are somewhat logarithmic. SSD's will maintain a price level above similar spec HD's for some time, but the gap will close, quite rapidly at first.
Beyond 128BG SSD's will be 256GB, 512GB and 1TB units (I'm sure there will be 384, 640 etc inbetween as well). Performance will increase, prices will drop, power requirements will drop and uptake will increase.
Market forces at their most basic.
As for the megnetic induction, sorry folks but I don't see a future for it. Far too energy inefficient at a time where efficiency is becoming a real watchword in the energy sector.
Of course 128GB SSD's are going to become affordable. The rate at which prices drop are somewhat logarithmic. SSD's will maintain a price level above similar spec HD's for some time, but the gap will close, quite rapidly at first.
Beyond 128BG SSD's will be 256GB, 512GB and 1TB units (I'm sure there will be 384, 640 etc inbetween as well). Performance will increase, prices will drop, power requirements will drop and uptake will increase.
Market forces at their most basic.
As for the megnetic induction, sorry folks but I don't see a future for it. Far too energy inefficient at a time where efficiency is becoming a real watchword in the energy sector.
What about people stealing other people's electricity? Not like electricity is free or anything. Or will you get a WEP-key for your electricity?
"dang it i forgot my wep key, sorry kids, diner will be cold tonite."
"dang it i forgot my wep key, sorry kids, diner will be cold tonite."
Hmmmmz, powerfull magnetic fields indoors charging equipment nearby...
I see the following issue coming to the new notebooks using that technology :
Battery is charged, Harddisk is empty.
Magnetic fields will always effect something somehow.
I'm not telling this is not possible, but one big disadvantage is the loss of power over distance. I don't people are happy if they use 2000W to charge/power a 10W device.
I see the following issue coming to the new notebooks using that technology :
Battery is charged, Harddisk is empty.
Magnetic fields will always effect something somehow.
I'm not telling this is not possible, but one big disadvantage is the loss of power over distance. I don't people are happy if they use 2000W to charge/power a 10W device.
This is not really new technology, i have had an electric toothbrush that is charged by induction for years.
I was just thinking the same thing. My toothbrush charges this way as well.
Transformers, induction in disguise...
[edit]
May as well add something vaguely sensible...
Resonant induction isn't a particularly new idea but, AFAIR, the real trick is keeping the two circuits constantly in tune. The article doesn't mention whether the lit bulb was being moved about as this is the real deal breaker. I do recall that the similar MIT demonstration, from last year, kept the bulb decidedly stationary.
[\edit]
[edit]
May as well add something vaguely sensible...
Resonant induction isn't a particularly new idea but, AFAIR, the real trick is keeping the two circuits constantly in tune. The article doesn't mention whether the lit bulb was being moved about as this is the real deal breaker. I do recall that the similar MIT demonstration, from last year, kept the bulb decidedly stationary.
[\edit]
> i have had an electric toothbrush that is charged by induction for years
Me too. However, the difference being the amount of energy and distance involved. That is, powering a 60W light from 3 feet away
> What about people stealing other people's electricity? Not like electricity is free or anything. Or will you get a WEP-key for your electricity?
Yup. I am sure they will find a way to charge you. My bet is, like car parking, you will need to pick up a ticket upon entering a building with induction charging. Then you pay your fees on the way out. £3 for every 20 minutes should cover for the UK(!)
Me too. However, the difference being the amount of energy and distance involved. That is, powering a 60W light from 3 feet away
> What about people stealing other people's electricity? Not like electricity is free or anything. Or will you get a WEP-key for your electricity?
Yup. I am sure they will find a way to charge you. My bet is, like car parking, you will need to pick up a ticket upon entering a building with induction charging. Then you pay your fees on the way out. £3 for every 20 minutes should cover for the UK(!)
There are quite a few companies working on this sort of technology. The big problem is that you lose 50% of the energy used in charging (in a best case scenario). Not exactly a green option.
There are two different approaches to this. One is to have a big loop in a wall that can charge anything in the room. Look forward to brain tumors (or worse: your VHS of Sound of Music wiped) with that one. The other is to have a small shelf stand that you plonk your mobile/ipod onto. Much better alternative, but I really don't think it offers that much above existing standing chargers. You still need a wire to the little shelf stand.
There are two different approaches to this. One is to have a big loop in a wall that can charge anything in the room. Look forward to brain tumors (or worse: your VHS of Sound of Music wiped) with that one. The other is to have a small shelf stand that you plonk your mobile/ipod onto. Much better alternative, but I really don't think it offers that much above existing standing chargers. You still need a wire to the little shelf stand.
I wonder if there's a way to use magnetic induction to "tune" into the earth's magnetic field...
I think the earth's magnetic field doesn't resonate fast enough, to get energy out of it.
Tesla eperimented with it.. ;)
I believe it's quite possible... I think it's between 8-12 Hz, depending on where you're situated..
I believe it's quite possible... I think it's between 8-12 Hz, depending on where you're situated..
didnt tesla invent a death ray too?
and that shiny ball with purple lightning
Induction charging isn't new -- here's another example that's been around for a while:
http://www.hardcoreware.net/reviews/review-249-1.htm
induction charger for a wireless mouse built into the mousepad.
http://www.hardcoreware.net/reviews/review-249-1.htm
induction charger for a wireless mouse built into the mousepad.
Tesla's power transmission over distances did not directly 'tap into' the Earth's magnetic field. Wikipedia it, if you're interested. It's quite eyebrow-raising.