What's invisible? More than you think - John Lloyd

Kas ir neredzams? Vairāk, nekā tev šķiet — Džons Loids

3,021,662 views

2012-09-26 ・ TED-Ed


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What's invisible? More than you think - John Lloyd

Kas ir neredzams? Vairāk, nekā tev šķiet — Džons Loids

3,021,662 views ・ 2012-09-26

TED-Ed


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00:00
Translator: tom carter Reviewer: Bedirhan Cinar
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Translator: Evelina Puzo Reviewer: Kristaps Kadiķis
(Cirka mūzika)
00:15
(Circus music)
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00:21
[Ted N' Ed's Carnival]
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[Ted&Ed karnevāls]
00:24
[John Lloyd's Inventory of the Invisible]
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[Džona Loida visa neredzamā krātuve]
[Džona Loida 2009. gada TED runas adaptējums]
00:39
[Adapted from a TEDTalk given by John Lloyd in 2009]
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Džūna Koena: Nākamais runātājs pavadījis visu savu karjeru,
00:41
June Cohen: Our next speaker has spent his whole career
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izvilinot šo brīnuma sajūtu.
00:44
eliciting that sense of wonder.
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Lūdzu sagaidiet Džonu Loidu! (Aplausi)
00:45
Please welcome John Lloyd.
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00:47
(Applause)
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[Greizo spoguļu zāle]
00:48
[Hall of Mirrors]
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00:50
The question is, "What is invisible?"
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Jautājums: kas ir neredzams?
00:53
There's more of it than you think, actually.
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Patiesībā neredzamā ir daudz vairāk, nekā jūs domājat.
00:55
Everything, I would say -- everything that matters --
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It viss, es teiktu, it viss, kas ir svarīgs,
00:58
Except every thing, and except matter.
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izņemot visu, kam nav svars.
01:02
We can see matter
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Mēs redzam lietu,
01:04
but we can't see what's the matter.
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bet mēs neredzam, kas par lietu.
01:06
We can see the stars and the planets but we can't see what holds them apart,
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Mēs redzam zvaigznes un planētas, bet mēs neredzam, kas notur tās atstatus
01:11
or what draws them together.
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vai pievelk vienu pie otras.
01:14
With matter as with people, we see only the skin of things,
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Lietām tāpat kā cilvēkiem mēs redzam tikai ārējo čaulu,
mēs neredzam, kas lācītim vēderā, mēs neredzam, kas darās cilvēku galvās,
01:17
we can't see into the engine room, we can't see what makes people tick,
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01:20
at least not without difficulty,
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vismaz ne bez grūtībām,
01:22
and the closer we look at anything, the more it disappears.
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un, jo ciešāk mēs kaut ko pētām,
jo vairāk tas izzūd.
01:26
In fact, if you look really closely at stuff,
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Patiesībā, ja patiešām ieskatāmies lietās, ja ieskatāmies lietu pamata daļiņās,
01:28
if you look at the basic substructure of matter,
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01:30
there isn't anything there.
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tur nekā nav.
Elektroni izgaist tādā kā migliņā, un paliek tikai enerģija.
01:32
Electrons disappear in a kind of fuzz, and there is only energy.
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01:35
One of the interesting things about invisibility is,
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Viena no interesantākajām neredzamības iezīmēm ir,
01:37
the things that we can's see, we also can't understand.
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ka to, ko neredzam, mēs nevaram arī izprast.
01:40
Gravity is one thing that we can't see, and which we don't understand.
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Gravitācija ir viena no lietām, ko neredzam un arī neizprotam.
01:44
It's the least understood of all the four fundamental forces,
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Tas ir vismazāk izprastais no četriem pamatspēkiem
01:47
and the weakest, and nobody really knows what it is or why it's there.
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un arī vājākais, un neviens īsti nezina, kas tas ir vai kāpēc tas pastāv.
01:51
For what it's worth, Sir Isaac Newton, the greatest scientist who ever lived,
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Lai vai kā, Sers Īzaks Ņūtons, dižākais zinātnieks, kāds jelkad dzīvojis,
domāja, ka Jēzus ieradās uz Zemes, tikai lai darbinātu gravitācijas sviras.
01:55
he thought Jesus came to Earth specifically
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01:57
to operate the levers of gravity.
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01:59
That's what he thought he was there for.
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Tāpēc, viņaprāt, Jēzus ieradās.
02:01
So, bright guy, could be wrong on that one, I don't know.
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Gaišs prāts, bet par šo varbūt kļūdījās, nezinu.
02:04
(Laughter)
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(Smiekli)
02:05
Consciousness. I see all your faces; I've no idea what any of you are thinking.
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Apziņa.
Es redzu visu jūsu sejas; man nav ne jausmas, ko katrs no jums domā.
02:09
Isn't that amazing?
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Vai nav apbrīnojami? Vai nav neticami, ka nespējam lasīt viens otra domas,
02:10
Isn't it incredible that we can't read each other's minds,
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kaut arī varam viens otram pieskarties, pat nogaršot, ja tiekam pietiekami tuvu,
02:13
when we can touch each other, taste each other,
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02:16
perhaps, if we get close enough, but we can't read each other's minds.
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bet mēs nespējam lasīt otra domas.
Man tas šķiet gaužām apbrīnojami.
02:19
I find that quite astonishing.
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02:20
In the Sufi faith, this great Middle Eastern religion
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Sūfiju ticībā,
šajā lieliskajā Tuvo Austrumu reliģijā, kuru daži uzskata par visu reliģiju sakni,
02:23
which some claim is the root of all religions,
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02:26
Sufi masters are all telepaths, so they say,
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visi sūfiju meistari ir telepāti, vismaz tā viņi apgalvo,
02:31
but their main exercise of telepathy
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bet viņu galvenais telepātijas uzdevums ir izsūtīt spēcīgus signālus mums pārējiem,
02:33
is to send out powerful signals to the rest of us that it doesn't exist.
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ka tā nepastāv.
02:37
So that's why we don't think it exists; the Sufi masters working on us.
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Tāpēc arī mēs domājam, ka tās nav; sūfiju meistari mūs apstrādā.
02:41
In the question of consciousness and artificial intelligence,
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Jautājumā par apziņu un mākslīgo saprātu
02:45
artificial intelligence has really, like the study of consciousness,
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mākslīgais saprāts tāpat kā apziņas pētījumi
02:48
gotten nowhere, we have no idea how consciousness works.
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nekur tālu nav tikuši — mums nav ne jausmas, kā darbojas apziņa.
02:51
Not only have they not created artificial intelligence,
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Viņi ne vien nav radījuši mākslīgo saprātu,
02:53
they haven't yet created artificial stupidity.
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viņi nav pat radījuši mākslīgo stulbumu.
02:56
(Laughter)
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(Smiekli)
02:57
The laws of physics: invisible, eternal, omnipresent, all powerful.
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Fizikas likumi — neredzami, mūžīgi, visuresoši, visvareni.
03:02
Remind you of anyone?
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Kādu neatgādina?
03:04
Interesting.
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Interesanti.
03:05
I'm, as you can guess, not a materialist, I'm an immaterialist.
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Es, kā nojaušat, neesmu materiālists, es esmu nemateriālists,
03:08
And I've found a very useful new word -- ignostic.
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un esmu atradis ļoti noderīgu jaunu vārdu — ignostiķis.
03:11
Okay? I'm an ignostic.
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Es esmu ignostiķis.
03:12
[God?]
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03:13
I refuse to be drawn on the question on whether God exists
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Es atsakos pievērsties jautājumam par to, vai Dievs pastāv,
03:16
until somebody properly defines the terms.
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līdz kāds atbilstoši definēs terminus.
03:18
Another thing we can't see is the human genome.
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Vēl kas, ko neredzam, ir cilvēka genoms.
03:21
And this is increasingly peculiar, because about 20 years ago
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Tas ir ārkārtīgi dīvaini,
jo apmēram pirms 20 gadiem, kad pievērsās genoma izpētei,
03:26
when they started delving into the genome, they thought it would probably contain
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uzskatīja, ka tajā varētu būt ap 100 tūkstošiem gēnu.
03:30
around 100 thousand genes.
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03:31
Every year since, it's been revised downwards.
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Kopš tā laika katru gadu to precizē uz leju.
03:34
We now think there are likely to be just over 20 thousand genes
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Nu mēs domājam, ka cilvēka genomā ir drusku vairāk nekā 20 tūkstoši gēnu.
03:38
in the human genome.
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03:39
This is extraordinary, because rice -- get this --
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Tas ir ārkārtīgi neparasti, jo rīsos — uzminiet nu! —
03:42
rice is known to have 38 thousand genes.
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rīsos ir atklāti 38 tūkstoši gēnu.
03:45
Potatoes have 48 chromosomes, two more than people,
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Kartupeļiem ir 48 hromosomas —
par divām vairāk nekā cilvēkiem
03:50
and the same as a gorilla.
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un tikpat, cik gorillai.
03:52
(Laughter)
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(Smiekli)
03:55
You can't see these things, but they are very strange.
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Jūs tās neredzat, bet tās ir ļoti dīvainas.
03:58
The stars by day, I always think that's fascinating.
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Zvaigznes dienas laikā — man tas vienmēr šķiet apbrīnojami.
04:01
The universe disappears.
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Visums pazūd.
04:02
The more light there is, the less you can see.
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Jo vairāk ir gaismas, jo mazāk mēs redzam.
04:05
Time. Nobody can see time.
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Laiks. Neviens neredz laiku.
04:08
I don't know if you know this.
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Nezinu, vai zinājāt. Mūsdienu fizikā ir liela kustība,
04:09
There's a big movement in modern physics
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04:12
to decide that time doesn't really exist,
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kas nolēmusi, ka laiks patiesībā nepastāv,
04:14
because it's too inconvenient for the figures.
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jo tas pārāk apgrūtina aprēķinus.
04:16
It's much easier if it's not really there.
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Daudz vieglāk ir, ja laika tur īsti nav.
04:18
You can't see the future, obviously,
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Jūs, protams, nevarat redzēt nākotni
04:21
and you can't see the past, except in your memory.
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un neredzat arī pagātni, izņemot savās atmiņās.
04:23
One of the interesting things about the past
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Interesanta pagātnes iezīme ir tā, ka jūs jo īpaši nevarat ieraudzīt...
04:26
is you particularly can't see --
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04:27
my son asked me this the other day,
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Dēls viendien man jautāja: „Tēt, vai atceries, kāds es biju 2 gados?”
04:29
"Dad, can you remember what I was like when I was two?
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04:31
And I said, "Yes." He said, "Why can't I?"
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„Jā,” es atbildēju. Viņš: „Kāpēc tad es neatceros?”
04:33
Isn't that extraordinary?
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Vai nav neparasti?
Jūs neatceraties, kas ar jums notika pirms 2—3 gadu vecuma.
04:35
You cannot remember what happened to you earlier than the age of two or three.
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04:39
Which is great news for psychoanalysts, because otherwise they'd be out of a job.
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Kas ir laba ziņa psihoanalītiķiem, jo citādi viņi paliktu bez darba,
jo tieši tad notiek viss,
04:43
Because that's where all the stuff happens
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04:45
(Laughter)
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(Smiekli) (Aplausi)
04:48
that makes you who you are.
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kas tevi padara par to, kas esi.
04:51
Another thing you can't see is the grid on which we hang.
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Vēl viena lieta, ko neredzam, ir režģis, uz kā balstāmies.
04:54
This is fascinating.
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Tas ir apbrīnojami.
04:55
You probably know, some of you, that cells are continually renewed.
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Daži no jums gan jau zina, ka šūnas nepārtraukti atjaunojas.
04:58
Skin flakes off, hairs grow, nails, that kind of stuff --
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Āda nolobās, aug mati, nagi un tamlīdzīgi,
05:01
but every cell in your body is replaced at some point.
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bet katra šūna tavā ķermenī kādā brīdī tiek aizstāta ar jaunu.
05:05
Taste buds, every ten days or so.
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Garšas kārpiņas ik pēc aptuveni 10 dienām.
05:07
Livers and internal organs take a bit longer.
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Aknām un iekšējiem orgāniem vajag nedaudz vairāk laika.
05:10
Spine takes several years.
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Mugurkaulam vajadzīgi vairāk gadi.
05:11
But at the end of seven years, not one cell in your body
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Taču pēc septiņiem gadiem neviena šūna tavā ķermenī
05:15
remains from what was there seven years ago.
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nav tā pati, kas pirms septiņiem gadiem.
05:18
The question is: who then are we? What are we?
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Jautājums ir — kas tad mēs esam?
No kā esam veidoti? Kas ir tas, uz kā mēs turamies, kas mēs esam?
05:21
What is this thing that we hang on?
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05:23
That is actually us?
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05:24
Atoms, can't see them. Nobody ever will.
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Atomi — neredzam tos un arī neredzēsim. Tie ir mazāki nekā gaismas viļņa garums.
05:27
They're smaller than the wavelength of light.
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05:29
Gas, can't see that.
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Gāzes — neredzam arī tās. Interesanti, kāds nesen minēja 1600. gadu.
05:31
Interesting, somebody mentioned 1600 recently.
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05:33
Gas was invented in 1600 by a Dutch chemist called van Helmont.
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Gāzi 1600. gadā izdomāja nīderlandiešu ķīmiķis vārdā van Helmonts.
05:38
It's said to be the most successful ever invention of a word by a known individual.
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To uzskata par visveiksmīgāko vārda jaunradi,
ko paveikusi zināma persona. Diezgan labi!
05:43
Quite good. He also invented a word called "blas," meaning astral radiation.
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Viņš izdomāja arī vārdu „blāze”, ar to domājot zvaigžņu starojumu.
05:49
Didn't catch on, unfortunately.
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Diemžēl neiegājās tautā.
(Smiekli)
05:51
(Laughter)
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05:52
But well done, him.
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Bet malacis!
05:53
Light -- you can't see light.
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Gaisma — jūs neredzat gaismu.
05:55
When it's dark, in a vacuum,
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Kad vakuumā ir tumšs,
05:57
if a person shines a beam of light
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ja kāds spīdina gaismas staru tieši gar tavām acīm, tu to neredzēsi.
05:59
straight across your eyes, you won't see it.
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06:01
Slightly technical, some physicists will disagree with this.
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Tīri tehniski daži fiziķi nepiekritīs,
bet tas, ka neredzam gaismas staru, ir dīvaini.
06:04
But it's odd that you can't see the beam of light,
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Mēs redzam tikai to, pret ko tā atduras.
06:06
you can only see what it hits.
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06:08
Electricity, can't see that.
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Elektrība — arī to mēs neredzam.
06:09
Don't let anyone tell you they understand electricity, they don't.
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Neļauj nevienam tev iestāstīt, ka viņi izprot elektrību, tā nav.
06:12
Nobody knows what it is.
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Neviens nezina, kas tas ir. (Smiekli)
06:13
(Laughter)
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06:15
You probably think the electrons in an electric wire move instantaneously
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Jūs droši vien domājat, ka, tiklīdz ieslēdzat gaismu,
06:18
down a wire, don't you, at the speed of light,
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elektroni vados uzreiz sāk kustēties gaismas ātrumā,
06:20
when you turn the light on, they don't.
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Tā nav. Saka, ka elektroni pa vadu virzās apmēram plūstoša medus ātrumā.
06:23
Electrons bumble down the wire,
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06:24
about the speed of spreading honey, they say.
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06:27
Galaxies -- hundred billion of them,
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Galaktikas... lēš, ka Visumā ir simts miljardi galaktiku, simts miljardi!
06:28
estimated in the universe. Hundred billion.
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06:30
How many can we see?
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Cik daudzas mēs redzam?
06:32
Five. Five, out of a hundred billion galaxies, with the naked eye.
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Piecas. Ar neapbruņotu aci redzam piecas no simts miljardiem galaktiku,
un vienu no tām ir pagrūti saskatīt, ja vien nav ļoti laba redze.
06:36
And one of them is quite difficult to see, unless you've got very good eyesight.
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06:39
Radio waves. There's another thing.
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Radioviļņi. Tas ir vēl kas.
06:41
Heinrich Hertz, when he discovered radio waves, in 1887,
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Henrihs Hercs tos atklāja 1887. gadā un nosauca par radioviļņiem,
06:44
he called them radio waves because they radiated.
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jo tie tika radiēti.
Kāds jautāja: „Un kāda no tiem ir jēga, Heinrih?
06:47
Somebody said to him, "What's the point of these, Heinrich?
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Kāda jēga no tiem tevis atklātajiem radioviļņiem?”
06:50
What's the point of these radio waves that you've found?"
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06:52
And he said, "Well, I've no idea,
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„Nu, man nav ne jausmas,” viņš atbildēja: „bet gan kādudien tie kādam noderēs.”
06:54
but I guess somebody will find a use for them someday.
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Vislielākais neredzamais ir tas, ko mēs nezinām.
06:57
The biggest thing that's invisible to us is what we don't know.
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07:00
It is incredible how little we know.
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Tas ir neticami, cik maz mēs zinām.
07:02
Thomas Edison once said,
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Tomass Edisons reiz teica:
07:04
"We don't know one percent of one millionth about anything."
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„Nav nekā, par ko mēs zinātu kaut 1 procentu no vienas miljonās daļas.”
07:08
And I've come to the conclusion --
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Es esmu nonācis pie secinājuma...
07:12
because you ask this other question: "What's another thing we can't see?"
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jo jūs atkal jautājat: „Ko vēl mēs neredzam?”
Lielākā daļa no mums — jēgu. Kāda jēga?
07:15
The point, most of us. What's the point?
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Jēga. Esmu sapratis, ka ir tikai divi uzdošanas vērti jautājumi.
07:17
The point -- what I've got it down to
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07:19
is there are only two questions really worth asking.
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07:21
"Why are we here?",
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Kāpēc esam šeit?
07:22
and "What should we do about it while we are?"
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Un kas būtu jādara, kamēr šeit esam?
07:25
To help you, I've got two things to leave you with, from two great philosophers,
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Lai palīdzētu, man jums ir divas lietas no diviem dižiem filosofiem,
07:29
perhaps two of the greatest philosopher thinkers of the 20th century.
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iespējams, diviem dižākajiem 20. gadsimta domātājiem —
matemātiķa inženiera un dzejnieka.
07:32
One a mathematician and engineer, and the other a poet.
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07:35
The first is Ludwig Wittgenstein,
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Pirmais ir Ludvigs Vitgenšteins,
07:38
who said, "I don't know why we are here,
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kurš teica: „Es nezinu, kāpēc esam šeit,
07:41
but I am pretty sure it's not in order to enjoy ourselves."
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bet esmu diezgan drošs, ka ne jau lai izklaidētos.”
07:44
(Laughter)
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07:45
He was a cheerful bastard, wasn't he?
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Viņš bija visai jautrs zellis, ne tā?
(Smiekli)
07:47
(Laughter)
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07:48
And secondly, and lastly, W.H. Auden, one of my favorite poets,
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Un, otrkārt un visbeidzot, V. H. Audens, viens no maniem mīļākajiem dzejniekiem,
07:53
who said, "We are here on Earth to help others.
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kurš teica: „Mēs esam šeit, uz Zemes, lai palīdzētu pārējiem.
07:58
What the others are here for, I've no idea."
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Kāpēc šeit ir pārējie, man nav ne jausmas.”
08:01
(Laughter)
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(Smiekli) (Aplausi)
08:03
(Applause)
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(Cirka mūzika)
08:06
(Circus music)
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08:07
[Get your souvenir photo here!]
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[Saņem šeit savu suvenīrfoto! Turpini savu ceļojumu nezināmajā!]
08:08
[Continue your journey into the unknown!]
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08:11
(Circus music)
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