[BITList] End of Cables

FS franka at iinet.net.au
Mon Jan 5 09:29:22 GMT 2009


Think Tesla thought of this at the turn of last century and put a lot of 
work into it but it falls over as the power is inversely proportional to 
the square of the distance plus if it did work who would pay for it, 
think it was in the early 60's when the new TV transmitter started up on 
the isle of white and the were very puzzled as to lack of coverage until 
they tracked someone down who was powering their house off the 
transmitters having built a resonate frequency antenna in their ceiling
frank

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> Today's Topics:
>
>    1. Fwd: [INDIA-BRITISH-RAJ] Tea for the Raj: A History of	Tea in
>       Assam and Sylhet (John Feltham)
>    2. Fwd: [From: Mike Feltham] 'Wireless power' spells end for
>       cables (Michael Feltham)
>   
>
> ------------------------------------------------------------------------
>
> Subject:
> [BITList] Fwd: [INDIA-BRITISH-RAJ] Tea for the Raj: A History of Tea 
> in Assam and Sylhet
> From:
> John Feltham <wulguru.wantok at gmail.com>
> Date:
> Sun, 4 Jan 2009 18:27:27 +1000
>
>
>
>
> Begin forwarded message:
>
> *From: *"Harshawardhan_Bosham Nimkhedkar" <bosham at gmail.com 
> <mailto:bosham at gmail.com>>
> *Date: *4 January 2009 4:22:01 PM
> *To: *<india-british-raj at rootsweb.com 
> <mailto:india-british-raj at rootsweb.com>>
> *Subject: **[INDIA-BRITISH-RAJ] Tea for the Raj: A History of Tea in 
> Assam and Sylhet*
> *Reply-To: *india-british-raj at rootsweb.com 
> <mailto:india-british-raj at rootsweb.com>
>
> Scheduled for this 22 January 2009: Tea for the Raj: A History of
> Tea in Assam and Sylhet
>
> By Roy Moxham. He recently retired from the University of London.
> His most well-known book is The Great Hedge of India, part-travelogue,
> part-historical treatise on the author's quest to find a 1500-mile long
> customs hedge built by the British in India to prevent smuggling of
> salt and opium. His second book, Tea: Addiction, Exploitation and
> Empire focuses on the effect of British tea addiction on British policies
> in Asia and Africa, and includes the author's own experience as a
> tea plantation manager in Africa.
>
> [Seminars on Bangladesh and Bangladeshis Abroad
> Lab 5, Idea Store Whitechapel 321 Whitechapel Rd,
> London E1 1BU]
>
> http://daily-khabor.blogspot.com/2009/01/re-khaborcom-seminars-on-bangladesh-and.html
>
> --- Harshawardhan_Bosham Nimkhedkar
>
>
>
> -------------------------------
> To unsubscribe from the list, please send an email to 
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>
> ooroo
>
> If you don't hear the knock of opportunity - build a door.
>
> Anon.
>
>
>
>
> ------------------------------------------------------------------------
>
> Subject:
> [BITList] Fwd: [From: Mike Feltham] 'Wireless power' spells end for 
> cables
> From:
> Michael Feltham <mj.feltham at madasafish.com>
> Date:
> Sun, 4 Jan 2009 08:56:37 +0000
> To:
> BIT List <BITList at lists.bcn.mythic-beasts.com>
>
> To:
> BIT List <BITList at lists.bcn.mythic-beasts.com>
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>
>
> Begin forwarded message:
>
> From: "guardian.co.uk" <noreply at guardian.co.uk>
> Date: 4 January 2009 08:49:10 GMT
> To: mj.feltham at madasafish.com
> Subject: [From: Mike Feltham] 'Wireless power' spells end for cables
>
> Mike Feltham spotted this on the guardian.co.uk site and thought you 
> should see it.
>
> To see this story with its related links on the guardian.co.uk site, 
> go to 
> http://www.guardian.co.uk/science/2009/jan/04/wireless-power-technology-witricity 
>
>
> 'Wireless power' spells end for cables
> David Smith, technology correspondent
> Sunday January 4 2009
> The Observer
>
>
> No more batteries, no more chargers and no more wire spaghetti. This 
> is the future promised by "wireless power", a means of broadcasting 
> electricity through the air to laptops, iPods and other gadgets 
> without the need for cables and sockets.
>
> Untethered lighting, audio speakers and digital picture frames are 
> expected to be among the first commercial products demonstrated in Las 
> Vegas this week at the International Consumer Electronics Show, the 
> world's biggest gadgets tradeshow.
>
> Experts believe this is just the beginning and that eventually 
> wireless electricity - dubbed "WiTricity" by some - could do for 
> battery life what WiFi did for the internet. In a world without wires, 
> laptop users in cafes and airport terminals would be inside an 
> "electricity hotspot" and no longer have to delve past legs, bags and 
> furniture in search of an awkwardly located socket.
>
> "You'd be able to buy a desk that charged any gadget placed on it, or 
> power any PC you put on top," said James Holland, editor of gadgets 
> website Electricpig.co.uk.
>
> "If each room had wireless power, you'd know that once you walked 
> through the front door your mobile would start charging up - even 
> while still in your bag or pocket. You'd never need to hunt for the 
> right charger again."
>
> Among the companies showcasing the ambitious technology at CES is 
> PowerBeam. Its system turns electricity into an invisible laser, then 
> literally beams it, as heat, across the room to a solar cell that 
> converts it back into electricity.
>
> David Graham, the co-founder of PowerBeam, told the Observer: "We're 
> going to delete the word 'recharge' from the English dictionary. If 
> your cellphone is recharging on your desk all day, you won't be 
> thinking about it."
>
> The Silicon Valley company can currently use a laser to generate about 
> 1.5 watts of power to a solar cell 10 metres away. This would be 
> enough to power an electronic speaker or small LED (light-emitting 
> diode) lights, but not enough to operate a laptop, which requires an 
> estimated 30 to 50 watts. However, Graham said that the technology 
> could comfortably be scaled up.
>
> PowerBeam insists its laser does not pose a risk to users' health 
> because it is simply moving heat from one place to another. Graham 
> said that, if someone walked through the beam, it would shut down 
> within a thousandth of a second, then restart once the path was clear.
>
> The technology also promises energy efficiency because it would only 
> power products when needed.
>
> Concerns have been raised about a possible link between 
> electromagnetic waves and cancer, but scientists insist that the 
> energy would only be picked up by gadgets designed to "resonate" with 
> the field.
>
> Copyright Guardian Newspapers Limited 2009
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