/u/GabriellaDaisy's posts in /r/todayilearned

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TIL: There is an official world record for time travel. It is held by cosmonaut Sergei Krikalev, who has spent a total of 803 days in orbit around the Earth. According to Einstein's relativity theory, Sergei has traveled approximately 0.02 seconds forward in time.

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TIL that on September 11, 2001, Officer John Perry of the NYPD went to headquarters to file his retirement paperwork. as he heard the explosion at the World Trade Center, he instantly responded and was killed as one of the towers fell. He was the sole off-duty cop killed on 9/11.

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
TIL: There is an official world record for time travel. It is held by cosmonaut Sergei Krikalev, who has spent a total of 803 days in orbit around the Earth. According to Einstein's relativity theory, Sergei has traveled approximately 0.02 seconds forward in time.	24
TIL that on September 11, 2001, Officer John Perry of the NYPD went to headquarters to file his retirement paperwork. as he heard the explosion at the World Trade Center, he instantly responded and was killed as one of the towers fell. He was the sole off-duty cop killed on 9/11.	1