Question about Black Hole

Ask questions, find resources, browse the virtual shelves.
alaseron
Asternaut
Posts: 1
Joined: Wed May 07, 2014 12:07 am

Question about Black Hole

Postby alaseron » Wed May 07, 2014 12:09 am

If someone were to get close enough to a black hole to study it, and if time slowed down then how would they transmit the information they discovered?

Markus Schwarz
Science Officer
Posts: 215
Joined: Wed Apr 29, 2009 11:55 am
Location: Germany

Re: Question about Black Hole

Postby Markus Schwarz » Wed May 07, 2014 11:48 am

Since we can study the effects of black holes on their surroundings, we are, in a sense, close enough to study it. For instance, we can measure the mass of the black hole at the center of the Milky Way.

But if an experimenter close to the event horizon would send the data via electromagnetic radiation, we would receive this radiation at a larger wavelength. For example, if he were to send a signal in visible light, we might have to use a radio antenna to detect the signal. This also means that, from our far away point of view, his clocks (and all his movements) run at a slower rate than ours. These effects becomes more dramatic the closer the experimenter is to the event horizon. Once he crosses the event horizon, we could no longer receive anything from him.

User avatar
neufer
Vacationer at Tralfamadore
Posts: 14011
Joined: Mon Jan 21, 2008 1:57 pm
Location: Alexandria, Virginia

Re: Question about Black Hole

Postby neufer » Wed May 07, 2014 12:42 pm

Click to play embedded YouTube video.
Art Neuendorffer

User avatar
Beyond
500 Gigaderps
Posts: 6889
Joined: Tue Aug 04, 2009 11:09 am
Location: BEYONDER LAND

Re: Question about Black Hole

Postby Beyond » Wed May 07, 2014 9:42 pm

Good video, Art!!
To find the Truth, you must go Beyond.


Return to “The Library: Information Desk and Educational Resources”

Who is online

Users browsing this forum: CommonCrawl [Bot] and 0 guests