Eric Giler demos wireless electricity

Traducător: Octavian Vidican Corector: Alex Ghișoiu

Early visions of wireless power

Primele viziuni despre energia fara fir

actually were thought of by Nikola Tesla

au fost gandite de Nikola Tesla

basically about 100 years ago.

acum aproximativ 100 de ani.

The thought that

Gandul ca

you wouldn't want to transfer electric power wirelessly,

ca n-ati dori sa transferati energie electrica fara a folosi fire

no one ever thought of that.

nimeni nu s-a gandit la asta.

They thought, "Who would use it if you didn't?"

S-au gandit, "Cine o va folosi daca voi nu?"

And so, in fact, he actually set about

Si astfel, de fapt, s-a pus

doing a variety of things.

sa faca o multime de lucruri.

Built the Tesla coil. This tower was built

A construit clopotul Tesla. Acest turn a fost construit

on Long Island back at the beginning of the 1900s.

in Long Island la inceputul anilor 1900.

And the idea was, it was supposed to be able to transfer power

Iar ideea era, ca aceasta se presupunea a fi capabila sa transfere curent

anywhere on Earth.

oriunde in lume.

We'll never know if this stuff worked. Actually, I think the

Nu vom sti daca aceasta treaba a functionat. De fapt cred ca

Federal Bureau of Investigation

FBI-ul

took it down for security purposes,

la daramat din motive de securitate,

sometime in the early 1900s.

undeva la inceputul anilor 1900.

But the one thing that did come out of electricity

Dar un lucru care a rezultat din electricitate

is that we love this stuff so much.

este ca iubim treaba asta foarte mult.

I mean, think about how much we love this.

Ganditi-va cat de mult ne place ideea asta.

If you just walk outside, there are trillions of dollars

Daca va plimbati undeva pe-afara, veti vedea ca s-au

that have been invested in infrastructure around the world,

investit trilioane de dolari in infrastructura in intreaga lume,

putting up wires to get power from where it's created

in fire, pentru a duce electricitatea din locul unde este creata

to where it's used.

acolo unde este folosita.

The other thing is, we love batteries.

O alta chestiune este ca ne plac bateriile.

And for those of us that have an environmental element to us,

Si pentru cei dintre noi care sunt atinsi de microbul ecologiei

there is something like 40 billion

se produc aproximativ 40 de miliarde

disposable batteries built every year

de baterii in fiecare an.

for power that, generally speaking,

Pentru o energie care, vorbind in general,

is used within a few inches or a few feet

provine din cativa inchi sau cateva picioare

of where there is very inexpensive power.

este o energie foarte ieftina.

So, before I got here,

Asa ca inainte de a veni aici,

I thought, "You know, I am from North America.

m-am gandit, "Sunt din America de Nord.

We do have a little bit of a reputation in the United States."

Avem o reputatie proasta in Statele Unite"

So I thought I'd better look it up first.

Asa ca ar fi mai bine sa analizez situatia de aici in primul rand.

So definition number six is the North American

Definitia numarul sase este definitia Nord Americana

definition of the word "suck."

a cuvantului "a absorbi".

Wires suck, they really do.

Firele absorb si ne exaspereaza, intradevar.

Think about it. Whether that's you in that picture

Ganditi-va numai. Chiar daca sunteti voi in poza aceea

or something under your desk.

sau ceva sub birou.

The other thing is, batteries suck too.

Alta chestiune este ca si bateriile ne exaspereaza.

And they really, really do.

Si ele intradevar o fac.

Do you ever wonder what happens to this stuff?

V-ati intrebat vreodata ce se intampla cu ele?

40 billion of these things built.

Cu cele 40 de miliarde produse?

This is what happens.

Asta se intampla.

They fall apart, they disintegrate,

Ele se descarca, se desintegreaza,

and they end up here.

si in final ajung aici.

So when you talk about expensive power,

Deci atunci cand vorbiti de energie scumpa

the cost per kilowatt-hour

costul pe kilowatul ora

to supply battery power to something

pentru a alimenta cu baterii ceva

is on the order of two to three hundred pounds.

este de ordinul a una doua sute de kilograme.

Think about that.

Ganditi-va la asta.

The most expensive grid power in the world

Cea mai scumpa retea energetica din lume

is thousandths of that.

sunt mii de asemenea lucruri.

So fortunately, one of the other definitions

Din fericire, una din celelalte definitii

of "suck" that was in there, it does create a vacuum.

a cuvantului a absorbi care se gaseste aici, este ceva ce creeaza un vid.

And nature really does abhor a vacuum.

Si natura intradevar uraste vidul.

What happened back a few years ago

Ce s-a intampla acum cativa ani

was a group of theoretical physicists at MIT

a fost ca un grup de fizicieni teoretici ai MIT

actually came up with this concept of transferring power over distance.

au venit cu acest concept de transferare a energiei la distanta.

Basically they were able to light a 60 watt light bulb

Ei au reusit sa aprinda un bec de 60 de wati

at a distance of about two meters.

la o distanta de aproximativ 2 metri.

It got about 50 percent of the efficiency --

Le-a luat, aproximativ 50 de procente din eficienta.

by the way, that's still a couple thousand times

Apropo, acest lucru este de mii de ori

more efficient than a battery would be, to do the same thing.

mai eficient decat ar putea sa faca acelasi lucru, o baterie.

But were able to light that,

Dar am fost capabili sa aprindem becul,

and do it very successfully.

si am facut-o cu foarte mare succes.

This was actually the experiment. So you can see

A fost un experiment. Puteti vedea

the coils were somewhat larger.

ca bobinele au fost intrucatva mari.

The light bulb was a fairly simple task, from their standpoint.

Becul a fost o sarcina usoara din punctul lor de vedere.

This all came from a professor

Toate astea au pornit de la un profesor

waking up at night to the third night in a row

care se trezea noaptea, trei nopti la rand

that his wife's cellphone was beeping

pentru ca celularul sotiei beep-aia

because it was running out of battery power.

pentru ca nu mai avea baterie.

And he was thinking, "With all the electricity that's out there in the walls,

Si el s-a gandit: "Cu toata energia care se gaseste in peretii casei

why couldn't some of that just come into the phone so I could get some sleep?"

de ce nu am putea face ca o parte din ea sa intre in telefon ca sa pot si eu dormi linistit?"

And he actually came up with this concept

Si a realizat acest concept

of resonant energy transfer.

al transferului rezonant al energiei.

But inside a standard transformer are two coils of wire.

Dar inauntrul unui transformator sunt doua spirale de fire.

And those two coils of wire are really, really close to each other,

Iar aceste spirale din fire sunt foarte foarte aproape una de alta,

and actually do transfer power

si realizeaza transferul de energie --

magnetically and wirelessly, only over a very short distance.

magnetic si fara fire, doar pe o distanta scurta.

What Dr. Soljacic figured out how to do

Ce si-a imaginat Dr. Soljacic a fost

was separate the coils in a transformer

separarea spirelor dintr-un transformator

to a greater distance than the size of those transformers

la o distanta mai mare decat marimea acelor transformatoare

using this technology, which is not dissimilar

utilizand aceasta tehnologie, care nu este deosebita

from the way an opera singer shatters a glass on the other side of the room.

fata de modul in care un cantaret de opera zdruncina un pahar in cealalta parte a camerei.

It's a resonant phenomenon

Este un fenomen rezonant

for which he actually received a MacArthur Fellowship Award,

pentru care a primit Distinctia MacArthur Fellowship,

which is nicknamed the Genius Award,

care este poreclita Distinctia Geniului

last September, for his discovery.

in Septembrie anul trecut.

So how does it work?

Cum functioneaza?

Imagine a coil. For those of you that are engineers,

Imaginati-va o spira. Pentu cei care sunt ingineri,

there's a capacitor attached to it too.

exista un condensator atasat la el.

And if you can cause that coil to resonate,

Si pentru ca puteti face o spira sa rezoneze,

what will happen is it will pulse

ce se va intampla este ca ea va pulsa,

at alternating current frequencies --

la alternarea frecventelor,

at a fairly high frequency, by the way.

la o mult mai inalta frecventa, printre altele.

And if you can bring another device

Si daca puteti aduce un alt dispozitiv

close enough to the source,

suficient de aproape de sursa,

that will only work at exactly that frequency,

acesta va functiona exact la aceeasi frecventa,

you can actually get them to do what's called strongly couple,

le veti putea face sa lucreze precum un cuplu,

and transfer magnetic energy between them.

si sa transfere energie magnetica intre ele.

And then what you do is, you start out with electricity,

Si atunci ceea ce faceti este, incepeti cu electricitatea,

turn it into magnetic field, take that magnetic field,

o transformati in camp magnetic, luati campul magnetic,

turn it back into electricity,

si il trasnformati inapoi in electricitate.

and then you can use it.

Si apoi puteti s-o folositi.

Number one question I get asked.

Intrebarea numarul unu a fost pusa.

I mean, people are worried about cellphones being safe.

Oamenii sunt ingrijorati ca telefoanele celulare sa fie sigure.

You know. What about safety?

Stiti. Ce se poate spune despre siguranta?

The first thing is this is not a "radiative" technology.

Primul lucru este ca nu este o tehnologie radiativa.

It doesn't radiate.

Nu radiaza.

There aren't electric fields here. It's a magnetic field.

Nu exista camp electic aici. Este un camp magnetic.

It stays within either what we call the source,

Sta inauntrul a ceea ce noi numim sursa,

or within the device.

sau a dispozitivului.

And actually, the magnetic fields we're using

Campul magnetic care este folosit

are basically about the same as the Earth's magnetic field.

este similar campului magnetic al Pamantului.

We live in a magnetic field.

Noi traim intr-un camp magnetic.

And the other thing that's pretty cool about the technology is

Iar alt lucru interesant despre aceasta tehnologie este

that it only transfers energy to things that work at exactly the same frequency.

ca transfera energie doar lucrurilor care lucreaza la exact aceeasi frecventa.

And it's virtually impossible in nature to make that happen.

si este imposibil in natura, ca asa ceva sa se intample.

Then finally we have governmental bodies everywhere

Si avem organisme guvernamentale peste tot

that will regulate everything we do.

care vor reglementa orice am face noi.

They've pretty much set field exposure limits,

Si deja acestea au impus limite la expunerea in camp

which all of the things in the stuff I'll show you today

pe care toate lucrurile pe care vi le voi arata eu azi

sort of sit underneath those guidelines.

sunt stabilite in asa numite linii directoare.

Mobile electronics.

Electronicele mobile.

Home electronics.

Electronicele pentru acasa.

Those cords under your desk, I bet everybody here

Aceste cabluri de sub birouri, pun pariu ca toata lumea de-aici

has something that looks like that or those batteries.

are ceva care sa arate asa, sau aceste baterii.

There are industrial applications.

Acestea sunt aplicatii industriale.

And then finally, electric vehicles.

Si in final, vehiculele electrice.

These electric cars are beautiful.

Aceste masini electrice sunt minunate.

But who is going to want to plug them in?

Dar cine va dori sa le bage in priza?

Imagine driving into your garage -- we've built a system to do this --

Imaginati-va ca intrati in garajul dvs -- noi am construit deja un sistem care face asta --

you drive into your garage, and the car charges itself,

intrati in garaj cu masina, iar masina se reincarca singura.

because there is a mat on the floor that's plugged into the wall.

Asat din cauza ca exista un pres pe podea care este bagat in priza din perete.

And it actually causes your car to charge safely and efficiently.

Si asta este cauza datorita careia masina dvs se incarca eficient si in siguranta.

Then there's all kinds of other applications. Implanted medical devices,

Si sunt tot felul de alte aplicatii. Dispozitive medicale implantate.

where people don't have to die of infections anymore

Acolo unde oamenii nu trebuie sa mai moara din cauza unor infectii

if you can seal the thing up.

daca ai putea sigila tot.

Credit cards, robot vacuum cleaners.

Carduri de credit, roboti pentru curatenie.

So what I'd like to do is take a couple minutes

Ceea ce asa vrea sa fac este in cateva minute

and show you, actually, how it works.

sa va arat, cum intradevar, functioneaza.

And what I'm going to do is to show you pretty much what's here.

Si ceea ce am sa fac este sa va arat ce avem aici.

You've got a coil.

Avem o bobina.

That coil is connected to an R.F. amplifier

Aceasta bobina este conectata intr-un amplificator R.F.

that creates a high-frequency oscillating magnetic field.

care creeaza un camp maganetic oscilant de inalta frecventa.

We put one on the back of the television set.

Punem unul in spatele televizorului.

By the way, I do make it look a little bit easier than it is.

Apropo, fac sa arate totul mai simplu decat este in realitate.

There's lots of electronics and secret sauce

Exista multe electronice si sosul secret

and all kinds of intellectual property that go into it.

si tot felul de proprietati intelectuale care intra in ea.

But then what's going to happen is, it will create a field.

Dar ceea ce se va intampla este ca voi crea un camp,

It will cause one to get created

care va fi cauza ca sa se formeza inca unul

on the other side.

in partea cealalta.

And if the demo gods are willing,

Si daca vor vrea zeii demostratiilor,

in about 10 seconds or so we should see it.

in aproximativ 10 secunde il vom vedea.

The 10 seconds actually are because we --

Cele 10 secunde sunt din cauza ca noi --

I don't know if any of you have ever thought about plugging a T.V. in

Nu stiu daca unul dintre voi sa gandit la a conecta un TV

when you use just a cord.

cand folositi doar un cablu.

Generally, you have to go over and hit the button. So I thought

In general trebuie sa mai apasati pe un buton. Asa ca m-am gandit

we put a little computer in it that has to wake up

am pus un mic computer in el care va trebui sa-l porneasca

to tell it to do that.

care va trebui sa-l porneasca si sa-i spuna sa faca asta.

So, I'll plug that in.

Asa ca-l voi conecta.

It creates a magnetic field here.

Creeaza un camp magnetic aici.

It causes one to be created out here.

El creaza inca unul aici.

And as I said, in sort of about 10 seconds

Si, asa cum am spus, in aproximativ 10 secunde

we should start to see ...

vom incepe sa vedem...

This is a commercially --

Aceasta este o reclama --

(Applause)

(aplauze)

available color television set.

o reclama disponibila pe televizoarele color.

Imagine, you get one of these things. You want to hang them on the wall.

Imaginati-va, ca v-ati luat un astfel de televizor si vreti sa-l atarnati pe perete.

How many people want to hang them on the wall?

Cati dintre voi ar vrea sa-l agete pe zid?

Think about it. You don't want those ugly cords coming down.

Ganditi-va. Nu vreti ca aceste cabluri urate sa atarne in jos.

Imagine if you can get rid of it.

Imaginati-va ce-ar fi sa scapati de ele.

The other thing I wanted to talk about was safety.

Alt lucru de care vreau sa va vorbesc este siguranta.

So, there is nothing going on. I'm okay.

Asa ca, nu s-a intamplat nimic, sunt ok.

And I'll do it again, just for safety's sake.

Si voi face asta din nou, doar pentru va arata ca intradevar e sigur.

Almost immediately, though, people ask,

Aproape imediat, oamenii intreaba,

"How small can you make this? Can you make this small enough?"

"Cat de mic putem face aceste lucruri? Le puteti face suficient de mici?

Because remember Dr. Soljacic's original idea

Pentru ca reamintiti-va ideea originala a Dr. Soljacic

was his wife's cellphone beeping.

a fost bipăitul celularului sotiei sale.

So, I wanted to show you something.

Asa ca doresc sa va arat ceva.

We're an equal opportunity designer of this sort of thing.

Suntem proiectanti in mod egali pentru tot felul de lucruri.

This a Google G1.

Acesta este un Google G1.

You know, it's the latest thing that's come out.

Stiti, este ultimul lucru care va aparea pe piata.

It runs the Android operating system.

Foloseste un sistem de operare Android.

I think I heard somebody talk about that before.

Cred ca am auzit pe cineva vorbind despre asta mai inainte.

It's odd. It has a battery.

Este ciudat. Are baterie.

It also has coiled electronics

Are de asemenea electronice spiralate.

that WiTricity has put into the back of it.

pe care WiTricity i le-a pus in spate.

And if I can get the camera --

Si daca as putea primi, o camera de luat vederi,

okay, great --

ok, grozav,

you'll see, as I get sort of close...

veti vedea, daca ati filma mai de-aproape

you're looking at a cellphone powered completely wirelessly.

va uitati la un celular alimentat complet fara fir.

(Applause)

(Aplauze)

And I know some of you are Apple aficionados.

Stiu ca unii sunteti fani Apple.

So, you know they don't make it easy at Apple to get inside their phones.

Stiti ca cei de la Apple nu te lasa prea usor sa intri in interiorul telefoanelor lor.

So we put a little sleeve on the back,

Asa ca noi i-am pus o manecuta pe spate.

but we should be able to get this guy to wake up too.

Dar trebuie sa fim capabili sa pornim si telefonul asta.

And those of you that have an iPhone recognize the green center.

Si cei ce aveti un Iphone recunoasteti centrul verde.

(Applause)

(Aplauze)

And Nokia as well.

De asemenea si Nokia.

You'll see that what we did there is put a little thing in the back, to do that,

Veti vedea ca ceea ce am facut, este ca am pus ceva pe spatele, sa faca asta,

and it probably beeps, actually, as it goes on as well.

si probabil bipăie, dar merge.

But they typically use it to light up the screen.

Dar in mod obisnuit ei il folosesc sa lumineze ecranul.

So, imagine these things could go ... they could go in your ceiling.

Imaginati-va ca aceste lucruri pot fi, pot fi in tavanul vostru.

They could go in the floor. They could go, actually, underneath your desktop.

Pot fi in podea. Pot fi sub biroul vostru.

So that when you walk in or you come in from home,

Asa ca, atunci cand vii sau pleci de-acasa,

if you carry a purse, it works in your purse.

daca cari o punga, functioneaza si in punga.

You never have to worry about plugging these things in again.

Nu trebuie sa va faceti griji ca ar trebui sa le bagati in priza, niciodata

And think of what that would do for you.

Si ganditi-va ce ar putea face asta pentru voi.

So I think in closing,

Cred in incheiere,

sort of in the immortal visions of The New Yorker magazine,

intr-un mod precum visiunile nemuritoare ale The New York Magazine,

I thought I'd put up one more slide.

cred ca am pus inca un slide.

And for those of you who can't read it, it says,

Iar pentru cei care nu pot citi, se spune aici,

"It does appear to be some kind of wireless technology."

"Pare ca ar fi un fel de tehnologie fara fir"

So, thank you very much.

Multumesc foarte mult.

(Applause)

(Aplauze)