TEDGlobal 2009
Eric Giler: A demo of wireless electricity
Eric Giles demonstrează electricitatea fără fir
Filmed:
Readability: 3.4
2,250,411 views
Eric Giles vrea sa descalceasca vietile noastre legate prin fire explicandu-ne energia electrica fara fire. Aici, el vorbeste despre ceea ce tehnologiile stiintifico-fantastice ofera, si demostreaza in versiunea MIT, Witricity - o inventie aproape de pus pe piata care in curand va va putea rencarca telefonul celular, masina si pacemaker-ul.
Eric Giler - Wireless electrician
As the CEO of MIT-inspired WiTricity, Eric Giler has a plan to beam electric power through the air to wirelessly power your laptop or recharge your car. You may never plug in again. Full bio
As the CEO of MIT-inspired WiTricity, Eric Giler has a plan to beam electric power through the air to wirelessly power your laptop or recharge your car. You may never plug in again. Full bio
Double-click the English transcript below to play the video.
00:12
Early visions of wireless power
0
0
4000
Primele viziuni despre energia fara fir
00:16
actually were thought of by Nikola Tesla
1
4000
3000
au fost gandite de Nikola Tesla
00:19
basically about 100 years ago.
2
7000
2000
acum aproximativ 100 de ani.
00:21
The thought that
3
9000
2000
Gandul ca
00:23
you wouldn't want to transfer electric power wirelessly,
4
11000
3000
ca n-ati dori sa transferati energie electrica fara a folosi fire
00:26
no one ever thought of that.
5
14000
2000
nimeni nu s-a gandit la asta.
00:28
They thought, "Who would use it if you didn't?"
6
16000
2000
S-au gandit, "Cine o va folosi daca voi nu?"
00:30
And so, in fact, he actually set about
7
18000
3000
Si astfel, de fapt, s-a pus
00:33
doing a variety of things.
8
21000
2000
sa faca o multime de lucruri.
00:35
Built the Tesla coil. This tower was built
9
23000
2000
A construit clopotul Tesla. Acest turn a fost construit
00:37
on Long Island back at the beginning of the 1900s.
10
25000
4000
in Long Island la inceputul anilor 1900.
00:41
And the idea was, it was supposed to be able to transfer power
11
29000
2000
Iar ideea era, ca aceasta se presupunea a fi capabila sa transfere curent
00:43
anywhere on Earth.
12
31000
2000
oriunde in lume.
00:45
We'll never know if this stuff worked. Actually, I think the
13
33000
2000
Nu vom sti daca aceasta treaba a functionat. De fapt cred ca
00:47
Federal Bureau of Investigation
14
35000
2000
FBI-ul
00:49
took it down for security purposes,
15
37000
2000
la daramat din motive de securitate,
00:51
sometime in the early 1900s.
16
39000
3000
undeva la inceputul anilor 1900.
00:54
But the one thing that did come out of electricity
17
42000
2000
Dar un lucru care a rezultat din electricitate
00:56
is that we love this stuff so much.
18
44000
2000
este ca iubim treaba asta foarte mult.
00:58
I mean, think about how much we love this.
19
46000
2000
Ganditi-va cat de mult ne place ideea asta.
01:00
If you just walk outside, there are trillions of dollars
20
48000
4000
Daca va plimbati undeva pe-afara, veti vedea ca s-au
01:04
that have been invested in infrastructure around the world,
21
52000
2000
investit trilioane de dolari in infrastructura in intreaga lume,
01:06
putting up wires to get power from where it's created
22
54000
3000
in fire, pentru a duce electricitatea din locul unde este creata
01:09
to where it's used.
23
57000
2000
acolo unde este folosita.
01:11
The other thing is, we love batteries.
24
59000
3000
O alta chestiune este ca ne plac bateriile.
01:14
And for those of us that have an environmental element to us,
25
62000
4000
Si pentru cei dintre noi care sunt atinsi de microbul ecologiei
01:18
there is something like 40 billion
26
66000
2000
se produc aproximativ 40 de miliarde
01:20
disposable batteries built every year
27
68000
2000
de baterii in fiecare an.
01:22
for power that, generally speaking,
28
70000
2000
Pentru o energie care, vorbind in general,
01:24
is used within a few inches or a few feet
29
72000
3000
provine din cativa inchi sau cateva picioare
01:27
of where there is very inexpensive power.
30
75000
2000
este o energie foarte ieftina.
01:29
So, before I got here,
31
77000
3000
Asa ca inainte de a veni aici,
01:32
I thought, "You know, I am from North America.
32
80000
2000
m-am gandit, "Sunt din America de Nord.
01:34
We do have a little bit of a reputation in the United States."
33
82000
3000
Avem o reputatie proasta in Statele Unite"
01:37
So I thought I'd better look it up first.
34
85000
2000
Asa ca ar fi mai bine sa analizez situatia de aici in primul rand.
01:39
So definition number six is the North American
35
87000
3000
Definitia numarul sase este definitia Nord Americana
01:42
definition of the word "suck."
36
90000
3000
a cuvantului "a absorbi".
01:45
Wires suck, they really do.
37
93000
2000
Firele absorb si ne exaspereaza, intradevar.
01:47
Think about it. Whether that's you in that picture
38
95000
3000
Ganditi-va numai. Chiar daca sunteti voi in poza aceea
01:50
or something under your desk.
39
98000
2000
sau ceva sub birou.
01:52
The other thing is, batteries suck too.
40
100000
3000
Alta chestiune este ca si bateriile ne exaspereaza.
01:55
And they really, really do.
41
103000
2000
Si ele intradevar o fac.
01:57
Do you ever wonder what happens to this stuff?
42
105000
2000
V-ati intrebat vreodata ce se intampla cu ele?
01:59
40 billion of these things built.
43
107000
2000
Cu cele 40 de miliarde produse?
02:01
This is what happens.
44
109000
2000
Asta se intampla.
02:03
They fall apart, they disintegrate,
45
111000
2000
Ele se descarca, se desintegreaza,
02:05
and they end up here.
46
113000
2000
si in final ajung aici.
02:07
So when you talk about expensive power,
47
115000
3000
Deci atunci cand vorbiti de energie scumpa
02:10
the cost per kilowatt-hour
48
118000
4000
costul pe kilowatul ora
02:14
to supply battery power to something
49
122000
2000
pentru a alimenta cu baterii ceva
02:16
is on the order of two to three hundred pounds.
50
124000
3000
este de ordinul a una doua sute de kilograme.
02:19
Think about that.
51
127000
2000
Ganditi-va la asta.
02:21
The most expensive grid power in the world
52
129000
2000
Cea mai scumpa retea energetica din lume
02:23
is thousandths of that.
53
131000
3000
sunt mii de asemenea lucruri.
02:26
So fortunately, one of the other definitions
54
134000
3000
Din fericire, una din celelalte definitii
02:29
of "suck" that was in there, it does create a vacuum.
55
137000
3000
a cuvantului a absorbi care se gaseste aici, este ceva ce creeaza un vid.
02:32
And nature really does abhor a vacuum.
56
140000
3000
Si natura intradevar uraste vidul.
02:35
What happened back a few years ago
57
143000
2000
Ce s-a intampla acum cativa ani
02:37
was a group of theoretical physicists at MIT
58
145000
4000
a fost ca un grup de fizicieni teoretici ai MIT
02:41
actually came up with this concept of transferring power over distance.
59
149000
4000
au venit cu acest concept de transferare a energiei la distanta.
02:45
Basically they were able to light a 60 watt light bulb
60
153000
4000
Ei au reusit sa aprinda un bec de 60 de wati
02:49
at a distance of about two meters.
61
157000
2000
la o distanta de aproximativ 2 metri.
02:51
It got about 50 percent of the efficiency --
62
159000
3000
Le-a luat, aproximativ 50 de procente din eficienta.
02:54
by the way, that's still a couple thousand times
63
162000
2000
Apropo, acest lucru este de mii de ori
02:56
more efficient than a battery would be, to do the same thing.
64
164000
3000
mai eficient decat ar putea sa faca acelasi lucru, o baterie.
02:59
But were able to light that,
65
167000
2000
Dar am fost capabili sa aprindem becul,
03:01
and do it very successfully.
66
169000
2000
si am facut-o cu foarte mare succes.
03:03
This was actually the experiment. So you can see
67
171000
2000
A fost un experiment. Puteti vedea
03:05
the coils were somewhat larger.
68
173000
3000
ca bobinele au fost intrucatva mari.
03:08
The light bulb was a fairly simple task, from their standpoint.
69
176000
3000
Becul a fost o sarcina usoara din punctul lor de vedere.
03:11
This all came from a professor
70
179000
3000
Toate astea au pornit de la un profesor
03:14
waking up at night to the third night in a row
71
182000
2000
care se trezea noaptea, trei nopti la rand
03:16
that his wife's cellphone was beeping
72
184000
2000
pentru ca celularul sotiei beep-aia
03:18
because it was running out of battery power.
73
186000
3000
pentru ca nu mai avea baterie.
03:21
And he was thinking, "With all the electricity that's out there in the walls,
74
189000
4000
Si el s-a gandit: "Cu toata energia care se gaseste in peretii casei
03:25
why couldn't some of that just come into the phone so I could get some sleep?"
75
193000
3000
de ce nu am putea face ca o parte din ea sa intre in telefon ca sa pot si eu dormi linistit?"
03:28
And he actually came up with this concept
76
196000
2000
Si a realizat acest concept
03:30
of resonant energy transfer.
77
198000
2000
al transferului rezonant al energiei.
03:32
But inside a standard transformer are two coils of wire.
78
200000
4000
Dar inauntrul unui transformator sunt doua spirale de fire.
03:36
And those two coils of wire are really, really close to each other,
79
204000
3000
Iar aceste spirale din fire sunt foarte foarte aproape una de alta,
03:39
and actually do transfer power
80
207000
4000
si realizeaza transferul de energie --
03:43
magnetically and wirelessly, only over a very short distance.
81
211000
3000
magnetic si fara fire, doar pe o distanta scurta.
03:46
What Dr. Soljacic figured out how to do
82
214000
3000
Ce si-a imaginat Dr. Soljacic a fost
03:49
was separate the coils in a transformer
83
217000
3000
separarea spirelor dintr-un transformator
03:52
to a greater distance than the size of those transformers
84
220000
4000
la o distanta mai mare decat marimea acelor transformatoare
03:56
using this technology, which is not dissimilar
85
224000
2000
utilizand aceasta tehnologie, care nu este deosebita
03:58
from the way an opera singer shatters a glass on the other side of the room.
86
226000
4000
fata de modul in care un cantaret de opera zdruncina un pahar in cealalta parte a camerei.
04:02
It's a resonant phenomenon
87
230000
2000
Este un fenomen rezonant
04:04
for which he actually received a MacArthur Fellowship Award,
88
232000
3000
pentru care a primit Distinctia MacArthur Fellowship,
04:07
which is nicknamed the Genius Award,
89
235000
2000
care este poreclita Distinctia Geniului
04:09
last September, for his discovery.
90
237000
3000
in Septembrie anul trecut.
04:12
So how does it work?
91
240000
2000
Cum functioneaza?
04:14
Imagine a coil. For those of you that are engineers,
92
242000
3000
Imaginati-va o spira. Pentu cei care sunt ingineri,
04:17
there's a capacitor attached to it too.
93
245000
2000
exista un condensator atasat la el.
04:19
And if you can cause that coil to resonate,
94
247000
3000
Si pentru ca puteti face o spira sa rezoneze,
04:22
what will happen is it will pulse
95
250000
2000
ce se va intampla este ca ea va pulsa,
04:24
at alternating current frequencies --
96
252000
2000
la alternarea frecventelor,
04:26
at a fairly high frequency, by the way.
97
254000
3000
la o mult mai inalta frecventa, printre altele.
04:29
And if you can bring another device
98
257000
4000
Si daca puteti aduce un alt dispozitiv
04:33
close enough to the source,
99
261000
2000
suficient de aproape de sursa,
04:35
that will only work at exactly that frequency,
100
263000
3000
acesta va functiona exact la aceeasi frecventa,
04:38
you can actually get them to do what's called strongly couple,
101
266000
4000
le veti putea face sa lucreze precum un cuplu,
04:42
and transfer magnetic energy between them.
102
270000
4000
si sa transfere energie magnetica intre ele.
04:46
And then what you do is, you start out with electricity,
103
274000
2000
Si atunci ceea ce faceti este, incepeti cu electricitatea,
04:48
turn it into magnetic field, take that magnetic field,
104
276000
2000
o transformati in camp magnetic, luati campul magnetic,
04:50
turn it back into electricity,
105
278000
2000
si il trasnformati inapoi in electricitate.
04:52
and then you can use it.
106
280000
3000
Si apoi puteti s-o folositi.
04:55
Number one question I get asked.
107
283000
2000
Intrebarea numarul unu a fost pusa.
04:57
I mean, people are worried about cellphones being safe.
108
285000
2000
Oamenii sunt ingrijorati ca telefoanele celulare sa fie sigure.
04:59
You know. What about safety?
109
287000
2000
Stiti. Ce se poate spune despre siguranta?
05:01
The first thing is this is not a "radiative" technology.
110
289000
2000
Primul lucru este ca nu este o tehnologie radiativa.
05:03
It doesn't radiate.
111
291000
2000
Nu radiaza.
05:05
There aren't electric fields here. It's a magnetic field.
112
293000
3000
Nu exista camp electic aici. Este un camp magnetic.
05:08
It stays within either what we call the source,
113
296000
2000
Sta inauntrul a ceea ce noi numim sursa,
05:10
or within the device.
114
298000
2000
sau a dispozitivului.
05:12
And actually, the magnetic fields we're using
115
300000
2000
Campul magnetic care este folosit
05:14
are basically about the same as the Earth's magnetic field.
116
302000
3000
este similar campului magnetic al Pamantului.
05:17
We live in a magnetic field.
117
305000
2000
Noi traim intr-un camp magnetic.
05:19
And the other thing that's pretty cool about the technology is
118
307000
3000
Iar alt lucru interesant despre aceasta tehnologie este
05:22
that it only transfers energy to things that work at exactly the same frequency.
119
310000
4000
ca transfera energie doar lucrurilor care lucreaza la exact aceeasi frecventa.
05:26
And it's virtually impossible in nature to make that happen.
120
314000
4000
si este imposibil in natura, ca asa ceva sa se intample.
05:30
Then finally we have governmental bodies everywhere
121
318000
2000
Si avem organisme guvernamentale peste tot
05:32
that will regulate everything we do.
122
320000
2000
care vor reglementa orice am face noi.
05:34
They've pretty much set field exposure limits,
123
322000
2000
Si deja acestea au impus limite la expunerea in camp
05:36
which all of the things in the stuff I'll show you today
124
324000
2000
pe care toate lucrurile pe care vi le voi arata eu azi
05:38
sort of sit underneath those guidelines.
125
326000
3000
sunt stabilite in asa numite linii directoare.
05:41
Mobile electronics.
126
329000
2000
Electronicele mobile.
05:43
Home electronics.
127
331000
2000
Electronicele pentru acasa.
05:45
Those cords under your desk, I bet everybody here
128
333000
2000
Aceste cabluri de sub birouri, pun pariu ca toata lumea de-aici
05:47
has something that looks like that or those batteries.
129
335000
3000
are ceva care sa arate asa, sau aceste baterii.
05:50
There are industrial applications.
130
338000
2000
Acestea sunt aplicatii industriale.
05:52
And then finally, electric vehicles.
131
340000
2000
Si in final, vehiculele electrice.
05:54
These electric cars are beautiful.
132
342000
2000
Aceste masini electrice sunt minunate.
05:56
But who is going to want to plug them in?
133
344000
3000
Dar cine va dori sa le bage in priza?
05:59
Imagine driving into your garage -- we've built a system to do this --
134
347000
3000
Imaginati-va ca intrati in garajul dvs -- noi am construit deja un sistem care face asta --
06:02
you drive into your garage, and the car charges itself,
135
350000
4000
intrati in garaj cu masina, iar masina se reincarca singura.
06:06
because there is a mat on the floor that's plugged into the wall.
136
354000
3000
Asat din cauza ca exista un pres pe podea care este bagat in priza din perete.
06:09
And it actually causes your car to charge safely and efficiently.
137
357000
4000
Si asta este cauza datorita careia masina dvs se incarca eficient si in siguranta.
06:13
Then there's all kinds of other applications. Implanted medical devices,
138
361000
3000
Si sunt tot felul de alte aplicatii. Dispozitive medicale implantate.
06:16
where people don't have to die of infections anymore
139
364000
2000
Acolo unde oamenii nu trebuie sa mai moara din cauza unor infectii
06:18
if you can seal the thing up.
140
366000
2000
daca ai putea sigila tot.
06:20
Credit cards, robot vacuum cleaners.
141
368000
2000
Carduri de credit, roboti pentru curatenie.
06:22
So what I'd like to do is take a couple minutes
142
370000
2000
Ceea ce asa vrea sa fac este in cateva minute
06:24
and show you, actually, how it works.
143
372000
4000
sa va arat, cum intradevar, functioneaza.
06:28
And what I'm going to do is to show you pretty much what's here.
144
376000
5000
Si ceea ce am sa fac este sa va arat ce avem aici.
06:33
You've got a coil.
145
381000
3000
Avem o bobina.
06:36
That coil is connected to an R.F. amplifier
146
384000
3000
Aceasta bobina este conectata intr-un amplificator R.F.
06:39
that creates a high-frequency oscillating magnetic field.
147
387000
4000
care creeaza un camp maganetic oscilant de inalta frecventa.
06:43
We put one on the back of the television set.
148
391000
2000
Punem unul in spatele televizorului.
06:45
By the way, I do make it look a little bit easier than it is.
149
393000
3000
Apropo, fac sa arate totul mai simplu decat este in realitate.
06:48
There's lots of electronics and secret sauce
150
396000
2000
Exista multe electronice si sosul secret
06:50
and all kinds of intellectual property that go into it.
151
398000
5000
si tot felul de proprietati intelectuale care intra in ea.
06:55
But then what's going to happen is, it will create a field.
152
403000
3000
Dar ceea ce se va intampla este ca voi crea un camp,
06:58
It will cause one to get created
153
406000
2000
care va fi cauza ca sa se formeza inca unul
07:00
on the other side.
154
408000
3000
in partea cealalta.
07:03
And if the demo gods are willing,
155
411000
2000
Si daca vor vrea zeii demostratiilor,
07:05
in about 10 seconds or so we should see it.
156
413000
2000
in aproximativ 10 secunde il vom vedea.
07:07
The 10 seconds actually are because we --
157
415000
2000
Cele 10 secunde sunt din cauza ca noi --
07:09
I don't know if any of you have ever thought about plugging a T.V. in
158
417000
3000
Nu stiu daca unul dintre voi sa gandit la a conecta un TV
07:12
when you use just a cord.
159
420000
2000
cand folositi doar un cablu.
07:14
Generally, you have to go over and hit the button. So I thought
160
422000
2000
In general trebuie sa mai apasati pe un buton. Asa ca m-am gandit
07:16
we put a little computer in it that has to wake up
161
424000
2000
am pus un mic computer in el care va trebui sa-l porneasca
07:18
to tell it to do that.
162
426000
4000
care va trebui sa-l porneasca si sa-i spuna sa faca asta.
07:26
So, I'll plug that in.
163
434000
2000
Asa ca-l voi conecta.
07:28
It creates a magnetic field here.
164
436000
3000
Creeaza un camp magnetic aici.
07:31
It causes one to be created out here.
165
439000
2000
El creaza inca unul aici.
07:33
And as I said, in sort of about 10 seconds
166
441000
3000
Si, asa cum am spus, in aproximativ 10 secunde
07:36
we should start to see ...
167
444000
4000
vom incepe sa vedem...
07:40
This is a commercially --
168
448000
2000
Aceasta este o reclama --
07:42
(Applause)
169
450000
7000
(aplauze)
07:49
available color television set.
170
457000
3000
o reclama disponibila pe televizoarele color.
07:52
Imagine, you get one of these things. You want to hang them on the wall.
171
460000
2000
Imaginati-va, ca v-ati luat un astfel de televizor si vreti sa-l atarnati pe perete.
07:54
How many people want to hang them on the wall?
172
462000
2000
Cati dintre voi ar vrea sa-l agete pe zid?
07:56
Think about it. You don't want those ugly cords coming down.
173
464000
2000
Ganditi-va. Nu vreti ca aceste cabluri urate sa atarne in jos.
07:58
Imagine if you can get rid of it.
174
466000
2000
Imaginati-va ce-ar fi sa scapati de ele.
08:00
The other thing I wanted to talk about was safety.
175
468000
2000
Alt lucru de care vreau sa va vorbesc este siguranta.
08:02
So, there is nothing going on. I'm okay.
176
470000
4000
Asa ca, nu s-a intamplat nimic, sunt ok.
08:06
And I'll do it again, just for safety's sake.
177
474000
2000
Si voi face asta din nou, doar pentru va arata ca intradevar e sigur.
08:08
Almost immediately, though, people ask,
178
476000
3000
Aproape imediat, oamenii intreaba,
08:11
"How small can you make this? Can you make this small enough?"
179
479000
3000
"Cat de mic putem face aceste lucruri? Le puteti face suficient de mici?
08:14
Because remember Dr. Soljacic's original idea
180
482000
4000
Pentru ca reamintiti-va ideea originala a Dr. Soljacic
08:18
was his wife's cellphone beeping.
181
486000
2000
a fost bipăitul celularului sotiei sale.
08:20
So, I wanted to show you something.
182
488000
3000
Asa ca doresc sa va arat ceva.
08:23
We're an equal opportunity designer of this sort of thing.
183
491000
2000
Suntem proiectanti in mod egali pentru tot felul de lucruri.
08:25
This a Google G1.
184
493000
2000
Acesta este un Google G1.
08:27
You know, it's the latest thing that's come out.
185
495000
2000
Stiti, este ultimul lucru care va aparea pe piata.
08:29
It runs the Android operating system.
186
497000
2000
Foloseste un sistem de operare Android.
08:31
I think I heard somebody talk about that before.
187
499000
2000
Cred ca am auzit pe cineva vorbind despre asta mai inainte.
08:33
It's odd. It has a battery.
188
501000
2000
Este ciudat. Are baterie.
08:35
It also has coiled electronics
189
503000
2000
Are de asemenea electronice spiralate.
08:37
that WiTricity has put into the back of it.
190
505000
2000
pe care WiTricity i le-a pus in spate.
08:39
And if I can get the camera --
191
507000
3000
Si daca as putea primi, o camera de luat vederi,
08:42
okay, great --
192
510000
2000
ok, grozav,
08:44
you'll see, as I get sort of close...
193
512000
6000
veti vedea, daca ati filma mai de-aproape
08:50
you're looking at a cellphone powered completely wirelessly.
194
518000
4000
va uitati la un celular alimentat complet fara fir.
08:54
(Applause)
195
522000
5000
(Aplauze)
08:59
And I know some of you are Apple aficionados.
196
527000
3000
Stiu ca unii sunteti fani Apple.
09:02
So, you know they don't make it easy at Apple to get inside their phones.
197
530000
2000
Stiti ca cei de la Apple nu te lasa prea usor sa intri in interiorul telefoanelor lor.
09:04
So we put a little sleeve on the back,
198
532000
2000
Asa ca noi i-am pus o manecuta pe spate.
09:06
but we should be able to get this guy to wake up too.
199
534000
3000
Dar trebuie sa fim capabili sa pornim si telefonul asta.
09:09
And those of you that have an iPhone recognize the green center.
200
537000
7000
Si cei ce aveti un Iphone recunoasteti centrul verde.
09:16
(Applause)
201
544000
1000
(Aplauze)
09:17
And Nokia as well.
202
545000
2000
De asemenea si Nokia.
09:19
You'll see that what we did there is put a little thing in the back, to do that,
203
547000
4000
Veti vedea ca ceea ce am facut, este ca am pus ceva pe spatele, sa faca asta,
09:23
and it probably beeps, actually, as it goes on as well.
204
551000
3000
si probabil bipăie, dar merge.
09:26
But they typically use it to light up the screen.
205
554000
2000
Dar in mod obisnuit ei il folosesc sa lumineze ecranul.
09:28
So, imagine these things could go ... they could go in your ceiling.
206
556000
3000
Imaginati-va ca aceste lucruri pot fi, pot fi in tavanul vostru.
09:31
They could go in the floor. They could go, actually, underneath your desktop.
207
559000
3000
Pot fi in podea. Pot fi sub biroul vostru.
09:34
So that when you walk in or you come in from home,
208
562000
3000
Asa ca, atunci cand vii sau pleci de-acasa,
09:37
if you carry a purse, it works in your purse.
209
565000
2000
daca cari o punga, functioneaza si in punga.
09:39
You never have to worry about plugging these things in again.
210
567000
4000
Nu trebuie sa va faceti griji ca ar trebui sa le bagati in priza, niciodata
09:43
And think of what that would do for you.
211
571000
2000
Si ganditi-va ce ar putea face asta pentru voi.
09:45
So I think in closing,
212
573000
4000
Cred in incheiere,
09:49
sort of in the immortal visions of The New Yorker magazine,
213
577000
4000
intr-un mod precum visiunile nemuritoare ale The New York Magazine,
09:53
I thought I'd put up one more slide.
214
581000
4000
cred ca am pus inca un slide.
09:57
And for those of you who can't read it, it says,
215
585000
2000
Iar pentru cei care nu pot citi, se spune aici,
09:59
"It does appear to be some kind of wireless technology."
216
587000
2000
"Pare ca ar fi un fel de tehnologie fara fir"
10:01
So, thank you very much.
217
589000
2000
Multumesc foarte mult.
10:03
(Applause)
218
591000
1000
(Aplauze)
ABOUT THE SPEAKER
Eric Giler - Wireless electricianAs the CEO of MIT-inspired WiTricity, Eric Giler has a plan to beam electric power through the air to wirelessly power your laptop or recharge your car. You may never plug in again.
Why you should listen
Eric Giler heads WiTricity, a startup with a product straight out of science fiction: wireless electricity, beamed from a base station to your electrical devices. The technology was developed by an MIT team led by theoretical physicist Marin Soljačić (who won a MacArthur "genius"grant last year). Now, WiTricity is one of several startups developing tech to safely transmit power through the air -- and potentially untether our electronic age.
The technology at the core of WiTricity's approach is called magnetic coupled resonance, which can provoke an energetic response at a distance between two coils, one powered, the other not. If the two coils are correctly tuned to one another, energy flows from the connected one (installed, say, on the ceiling of a room) into the other (inside, say, your laptop). Giler presented a demo of it at TEDGlobal 2009 -- and several companies are already planning to add it to their phones, cameras, TVs and other devices.
Eric Giler | Speaker | TED.com