13000:12:51,408 --> 00:12:54,640I h

130
00:12:51,408 --> 00:12:54,640
I have a slight problem with the whole
Celestial Dictator premise.

131
00:12:55,237 --> 00:12:59,936
Now, what are you doing for lunch?
Ma makes a cracking roast.

132
00:13:04,406 --> 00:13:07,653
So, Jane, what are you studying?

133
00:13:07,703 --> 00:13:09,503
- Arts.
- Sprouts?

134
00:13:09,504 --> 00:13:11,265
Thank you.

135
00:13:11,905 --> 00:13:15,230
French and Spanish,
and hoping to do a PhD eventually.

136
00:13:15,280 --> 00:13:16,849
Oh, one arm.

137
00:13:16,899 --> 00:13:19,685
Medieval poetry of the Iberian Peninsula.

138
00:13:19,735 --> 00:13:23,430
Medieval poets...
What painters do you like?

139
00:13:23,880 --> 00:13:27,444
- Well, I like Turner.
- Turner, really?

140
00:13:27,702 --> 00:13:32,238
You know, I always feel that his paintings
look as if they've been left out in the rain.

141
00:13:33,571 --> 00:13:35,526
And... William Blake.

142
00:13:36,990 --> 00:13:39,873
- Jane, have some of my elderflower wine.
- Yes, yes, thank you.

143
00:13:39,901 --> 00:13:41,885
Don't touch it,
don't touch it, Jane.

144
00:13:41,935 --> 00:13:43,173
Thank you, Mother.

145
00:13:43,622 --> 00:13:47,338
Stephen doesn't like
my homemade wine...Philistine.

146
00:13:47,599 --> 00:13:50,559
I'm going to send you back
with a couple of bottles.

147
00:13:50,609 --> 00:13:53,843
So, Stephen, you have come to
church with a good woman.

148
00:13:53,893 --> 00:13:55,928
Are you feeling holier than thou?

149
00:13:56,728 --> 00:13:59,798
Positively saintly...
thank you.

150
00:13:59,968 --> 00:14:02,035
You haven't said why you
don't believe in God.

151
00:14:03,197 --> 00:14:07,433
A physicist can't allow his calculations to be
muddled by a belief in a supernatural creator.

152
00:14:07,567 --> 00:14:11,252
Sounds less of an argument against
God than against physicists.

153
00:14:13,696 --> 00:14:15,646
Light or dark?

154
00:14:17,125 --> 00:14:20,167
- Jane, light meat or dark?
- Light, please.

155
00:14:21,565 --> 00:14:23,587
I'm inviting Jane to be my
partner for the May ball.

156
00:14:23,637 --> 00:14:29,550
Really! Very impressive!
You'll have to dance, won't you, Stephen?

157
00:14:29,823 --> 00:14:32,802
Make way for my mother's maid,
here we go.

158
00:14:50,290 --> 00:14:51,387
Hello.

159
00:14:54,172 --> 00:14:55,338
Hello.

160
00:15:10,657 --> 00:15:13,490
- Sorry.
- Are you okay?

161
00:15:22,216 --> 00:15:24,698
- Should we dance?
- No.

162
00:15:26,233 --> 00:15:27,695
No.

163
00:15:27,745 --> 00:15:32,914
I don't, it's a phenomenon I'm very happy to
observe, but I can't possibly imagine participating.

164
00:15:32,984 --> 00:15:35,154
I absolutely agree. I mean, who
would want to dance?

165
00:15:35,184 --> 00:15:37,320
No, I'm serious,
I don't dance.

166
00:15:40,253 --> 00:15:42,215
No dancing then.

167
00:15:49,682 --> 00:15:51,134
Do you see how the men's shirt-fronts

168
00:15:51,149 --> 00:15:54,642
and their bow ties how they glow
more than the womens' dresses?

169
00:15:54,782 --> 00:15:57,624
- Yes.
- Do you know why?

170
00:15:57,674 --> 00:16:00,661
- Why?
- Tide.

171
00:16:01,299 --> 00:16:02,365
Washing powder.

172
00:16:02,450 --> 00:16:05,204
The fluorescence in the washing
powder is caught by the UV light.

173
00:16:07,309 --> 00:16:08,904
Why do you know that?

174
00:16:14,508 --> 00:16:21,140
When stars are born and when they
die, they emit UV radiation.

175
00:16:21,691 --> 00:16:24,894
So, if we could see the night
sky in ultraviolet light,

176
00:16:24,907 --> 00:16:27,756
then almost all the
stars would disappear

177
00:16:28,803 --> 00:16:34,454
and all that we would see are
these spectacular births and deaths.

178
00:16:36,745 --> 00:16:41,274
- And I reckon it would look a little...
- Like that.

179
00:17:16,370 --> 00:17:19,201
- So, why?
- Why what?

180
00:17:19,251 --> 00:17:24,580
- Why Spanish medieval poetry?
- I suppose I like to time travel...

181
00:17:25,168 --> 00:17:27,026
...like you.

182
00:17:27,068 --> 00:17:30,055
Are there any particular time periods
that you'd like to visit?

183
00:17:30,105 --> 00:17:33,671
- The imagine it's the Twenties.
- The Roaring Twenties?

184
00:17:34,547 --> 00:17:40,461
"Seek, then, No learning from starry men,
Who follow with the optic glass"

185
00:17:40,511 --> 00:17:42,537
"The Whirling Ways of Stars that Pass."

186
00:17:47,465 --> 00:17:49,086
Bravo!

187
00:18:21,590 --> 00:18:34,128
"In the beginning was the heaven and the
earth, and the earth was without form,"

188
00:18:35,088 --> 00:18:40,106
"and darkness was upon the face of the deep."

189
00:18:52,456 --> 00:18:55,282
Would you dance with me?

190
00:19:52,777 --> 00:19:55,900
The train now departing
from track number three is

191
00:19:55,945 --> 00:20:01,146
the nine-fifteen service
to London and Kings Row.

192
00:20:07,515 --> 00:20:10,374
Come on, Stephen.
Get a move on.

193
00:20:10,844 --> 00:20:14,114
What's wrong with you, man?
Come up top.

194
00:20:27,872 --> 00:20:31,425
A star, more than three
times the size of our sun...

195
00:20:31,475 --> 00:20:35,802
...ought to end its life, how?
With a collapse.

196
00:20:36,511 --> 00:20:40,010
the gravitational forces of
the entire mass overcoming

197
00:20:40,060 --> 00:20:45,109
the electromagnetic forces of individual atoms,
and so collapsing inwards.

198
00:20:45,169 --> 00:20:48,222
If the star is massive enough,
it will continue this collapse,

199
00:20:48,228 --> 00:20:52,021
creating a black hole,
where the warping of space-time

200
00:20:52,059 --> 00:20:52,060
These are by δΘΣτΘP⌠ß⌠Θ which is Greek to me.

201
00:20:52,071 --> 00:20:55,866
is so great that nothing
can escape... not even light.

202
00:20:55,916 --> 00:21:01,382
It gets... smaller... smaller.

203
00:21:02,067 --> 00:21:06,016
The star, in fact, gets denser
as atoms, even subatomic

204
00:21:06,066 --> 00:21:10,968
particles get literally crushed
into smaller and smaller space.

205
00:21:12,735 --> 00:21:17,180
And at its end point what are we left with?

206
00:21:18,265 --> 00:21:21,334
A space time singularity.

207
00:21:22,105 --> 00:21:25,701
Space and time come to a stop.

208
00:21:52,760 --> 00:21:57,559
I wonder what would happen if you applied Penrose's
theory about black holes to the entire universe?

209
00:21:58,719 --> 00:22:03,524
If Einstein is right, or if general relativity is
correct, then the universe is expanding, yes?

210
00:22:03,574 --> 00:22:03,794
Yes?

211
00:22:03,844 --> 00:22:04,943
- Yes.
- Okay, so...

212
00:22:05,293 --> 00:22:08,614
If you reverse time,
then the universe is getting smaller.

213
00:22:09,002 --> 00:22:11,129
- All right.
- So...

214
00:22:11,179 --> 00:22:18,194
What if I reverse the process all the way back to see
what happened at the beginning of Time itself?

215
00:22:18,626 --> 00:22:20,796
- The beginning of Time itself?
- Yes.

216
00:22:20,956 --> 00:22:26,223
The universe, getting smaller and smaller,
getting denser and denser, hotter and hotter as...

217
00:22:26,273 --> 00:22:27,748
As you wind back the clock.

218
00:22:28,338 --> 00:22:31,109
- In fact, you wind back the clock.
- Wind back the clock.

219
00:22:31,359 --> 00:22:34,650
Is that what you're doing?
You're winding back the clock.

220
00:22:34,694 --> 00:22:36,225
Exactly what I'm doing.

221
00:22:36,253 --> 00:22:40,872
Well, keep winding!
You've got quite a way to go! Keep winding.

222
00:22:40,893 --> 00:22:43,031
- I don't want to fall down.
- Well, you've got to go back to the beginning of time.

223
00:22:43,081 --> 00:22:46,338
You've got to go again, so,
keep winding, keep winding!

224
00:22:47,308 --> 00:22:48,922
Until you get...

225
00:22:49,991 --> 00:22:50,608
A singularity

226
00:22:50,692 --> 00:22:54,639
A space-time singularity, so the universe
born from a black hole exploding.

227
00:22:54,651 --> 00:22:57,390
- Keep going.
- What do you mean, "Keep going", what...

228
00:22:57,491 --> 00:22:58,925
before the universe began?

229
00:22:59,175 --> 00:23:01,885
No, no, no, no!
Keep going, develop the mathematics!

230
00:24:48,775 --> 00:24:52,467
Push it as hard as you can!
Push it, push it!

231
00:24:52,474 --> 00:24:55,325
- As hard as you can.
- I am pushing as hard as I can.

232
00:24:56,558 --> 00:25:05,102
What... I count 1... 1, 2... 1, 2...

233
00:25:05,232 --> 00:25:07,472
All right, all right.

234
00:25:08,079 --> 00:25:10,555
Fourth finger, fourth peg.

235
00:25:45,126 --> 00:25:49,126
It's called motor neuron disease.

236
00:25:52,195 --> 00:25:56,690
It's a progressive neurological disorder
that destroys the cells in the brain

237
00:25:56,740 --> 00:26:00,262
that control essential muscle activity,
such as...

238
00:26:00,794 --> 00:26:07,410
Speaking, walking, breathing, swallowing

239
00:26:07,523 --> 00:26:12,171
The signals that muscles must receive
in order to move are disrupted.

240
00:26:13,362 --> 00:26:19,190
The result is... gradual muscle decay,
wasting away.

241
00:26:21,102 --> 00:26:28,891
Eventually, the ability to control
voluntary movement is... lost... entirely.

242
00:26:33,220 --> 00:26:37,489
I'm afraid average life
expectancy is two years.

243
00:26:40,958 --> 00:26:43,510
There's nothing I can do for you.

244
00:26:45,918 --> 00:26:47,600
What about the brain?

245
00:26:49,488 --> 00:26:52,882
The brain isn't affected,
you're thoughts won't change.

246
00:26:52,932 --> 00:26:56,646
It's... just that...

247
00:26:58,816 --> 00:27:02,766
Well, eventually,
no one will know what they are.

248
00:27:05,155 --> 00:27:07,309
I'm ever so sorry.

249
00:27:57,247 --> 00:28:00,591
Well, welcome to this week's
episode of "The Natural World",

250
00:28:00,647 --> 00:28:04,628
where this week we explore the
BIZARRE hibernation patterns

251
00:28:04,726 --> 00:28:10,591
of the rare Cambridge Physicist,
seen here in his remarkable plumage..."

252
00:28:12,806 --> 00:28:16,575
So, how was it?
What did they say, how's your