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The tenth doctor regenerated because he absorbed all the radiation from a radiation chamber to save Wilf's (Donna Noble's grandfather's) life. Wilf knocked four times, so the Doctor knew it was time for him to die (because in effect the tenth doctor dies and the eleventh doctor is born).
Episode: The End of Time (part 2)
I know this all true but actually the doctor was a little bit scared of what will happen to him when he regenerates for the tenth time because he absorbed all the radiation in order to save dona's grandfather so noble family won't respect him as a enemy. The doctor was friendly but angry at the time but wanted to filled the prophecy so he knocked four times. ]
first time : stop the master plan to take over the universe
second time : help donna's grandfather
third time : visited all companions even know he injured from radition
four time : successfully regenerated into his eleventh incarnation with a few injuries but did as wuz predicted
What else can I help you with?
Where did the Eleventh Doctor regenerate?
Trenzalore (his final resting place), in the town of Christmas
Why does the Doctor regenerate?
Time Lords regenerate because they have a injury or something is wrong, it's their way of healing themselves.
Why did the eighth Doctor regenerate?
The eighth Doctor regenerated offscreen and nothing is known about how or why he regenerated. The eighth Doctor appeared onscreen only once in a TV movie. We know th Time War happened between the TV movie and the start of the 2005 series. It's widely assumed that whatever the Doctor did to end the Time War caused him to regenerate.
How did the 1st Doctor regenerate?
He regenerated because his current body was getting old, so it was of natural causes.
How did the first Doctor Regenerate?
He died of old age, pretty much. He was an elderly man to begin with, and the stress and strain of defeating the Cybermen in 'The Tenth Planet' took its toll. He collapsed in the TARDIS and in a scene that no video footage remains for, he regenerates into the Second Doctor.
Where did the Eleventh Doctor regenerate?
Trenzalore (his final resting place), in the town of Christmas
How did the TARDIS regenerate itself in the eleventh hour?
If the Doctor regenerates then the T.A.R.D.I.S regenerates. If the T.A.R.D.I.S blows up or something, then the Doctor will die. It basically has a part of him made in it.
When was Eleventh Doctor created?
Eleventh Doctor was created in 2010.
How old is the 11th doctor?
The Eleventh Doctor, portrayed by Matt Smith, is a fictional character from the television show "Doctor Who." He is an alien Time Lord who has the ability to regenerate when he is mortally wounded, so he does not have a specific age like a human being.
What will happen after the 12th Doctor dies in Doctor Who?
He'll regenerate into the 13th Doctor.
Who will the 2010 Doctor Who be?
Matt Smith is the eleventh Doctor.
What the eleventh doctor's name on Doctor Who?
Matt Smith.
What will happen when the 11h Doctor dies?
He will regenerate into the 12th Doctor.
Who will be the eleventh Doctor Who?
Jodie Whittaker was the thirteenth Doctor Who, following Peter Capaldi who was the twelfth. The eleventh Doctor was portrayed by Matt Smith.
The Doctor Who episode did the Eleventh doctor and the Tenth Doctor meet in?
the 50th anniversary special
When was Doctor Who the eleventh hour recorded?
The Eleventh Hour was recorded during October 2009.
What are the ratings and certificates for Doctor Who The Doctors Revisited - 2013 The Eleventh Doctor 1-11?
Doctor Who The Doctors Revisited - 2013 The Eleventh Doctor 1-11 is rated/received certificates of: UK:U
