Stargate SG-1

Secrets - S2-E9

Factual error: When O'Neill throws the knife at the system lord at the end, the knife is spinning in the wrong direction.

1969 - S2-E21

Factual error: During SG-1's trip across the nation they show a city-scape of Chicago. Which is evident by the Sears Tower. But the Sears Tower was not build in 1969. Construction started in 1970 and completed in 1973.

A Matter of Time - S2-E16

Factual error: The star collapsing into a black hole suddenly seems to increase its gravitational pull on the planet that SG-10 is on. When an object collapses to a singularity, the pull it exerts on an object does not suddenly change because the mass, and therefore the strength of its gravity, has not changed.

Upvote valid corrections to help move entries into the corrections section.

Suggested correction: Black holes certainly increase gravitational pull and can tear planets apart. In additions, black holes are pulling in matter around it, adding to its mass.

Bishop73

A star and a black hole formed from it have the same mass and cause the same gravitational pull on objects outside the star's original diameter. Yes, a black hole pulls in matter around it, but that is the exact same matter that would also be pulled into a star of the same mass, so again the star and black hole would have the exact same effect on everything around it, including the planet. Regarding black holes (and stars) pulling planets apart, that is from tidal forces that grow exponentially as they approach a large mass, and again for objects at a distance outside the stars original diameter a star and black hole of the same mass cause exactly the same effect. The reality is when a star collapses into a black hole, some of the matter gets ejected and causes a supernova during the process, so the planet would have been torn apart long before any black hole was present, with the planet's debris thrown away from the event, not sucked towards it.

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