3 ms·
http://individual.utoronto.ca/sck/vday.html http://individual.utoronto.ca/sck/vday.html one of my favorites "Roses are red. Violets are approximately blue. A p
by _corbett 16y ago
http://individual.utoronto.ca/sck/vday.html http://individual.utoronto.ca/sck/vday.html
one of my favorites
"Roses are red.
Violets are approximately blue.
A paracompact manifold with a Lorentzian metric,
can be a spacetime, if it has dimension greater than or equal to two."