What did the Doctor mean when he said that he'd "walked in universes where the laws of physics were devised by the mind of a mad man"?
36334
What does The Doctor's Speech in The Rings of Akhaten refer to?
5468
Does every Doctor have a catchphrase? If so what are they?
133776
Why couldn't River Song's memories bring back The Doctor in the rebooted universe?
47493
What in Newton's three laws of motion is original and not a paraphrasing of his predecessors?
130755
Faraday's paradox
17480
Meaning of the word "axiom"
121048
Why does gravitational singularity break the laws of physics?
5388
Are Newton's "laws" of motion laws or definitions of force and mass?
112992
Why can’t the Doctor deal with his condition?
106450
Where do these "redshifts" and "blueshifts" come from?
137332
A person who cannot understand that there may be other perspectives
77244
To whom was Yoda referring when he said, "There is another?"
50028
Einstein's postulates $\leftrightarrow$ Minkowski space for a Layman
105934
What does "physical" mean to philosophers?
107430
Can't the Doctor just land the TARDIS outside New York during 1938?
103920
Supersymmetry vs multiverse
34347
Why did the Doctor think he was going to die in "The Time of the Doctor" even though he saw Capaldi in "The Day of the Doctor"?