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Ian Morison: Why Not to Fear Black Holes

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Gresham College

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What Would Happen If You Fell into a Black Hole?

05 min 20 sec

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British astronomer Ian Morison describes a bleak, yet comical, prognosis should you happen to fall into a black hole. Dubbed "spaghettification" (See: Stephen Hawking's A Brief History of Time), extreme gravitational forces would quickly stretch your body like spaghetti as the event horizon neared.
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01 hr 01 min 16 sec

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Previous FORAtv comments:

socratus

Posted: 10.20.11, 11:09 PM

A black hole can be Vacuum. 1. A black hole has a temperature within a few millionths of a degree above absolute zero: T=0K. / Oxford. Dictionary./ 2. A stellar black hole of one solar mass has a Hawking temperature of about 100 nanokelvins. This is far less than the 2.7 K temperature of the cosmic microwave background. http://en.wikipedia.org/wiki/Black_hole 3. Previous Picture of the Day articles about black holes suggested that the terminology used to describe “gravitational point sources” is highly speculative: space/time, singularities, and infinite density are abstract concepts, precluding a realistic investigation into the nature of the Universe. / Oct 12, 2011. Black hole theory contradicts itself. By Stephen Smith / =. My heretical idea: The black hole with thermodynamic temperature T= 2,7K - –--> T= 0K. is a Homogeneous Energy Vacuum Space between Galaxies. Only Vacuum can have infinite spacetime, infinite energy,infinite density. =. Israel Sadovnik Socratus ===.

socratus

Posted: 04.21.11, 10:17 AM

Black hole and Big bang. 1 A black hole is a theoretical region of space in which the gravitational field is so powerful that nothing can escape. 2 Hawking Radiation theorizes that black holes do not, in fact, absorb all matter absolutely; they give off some return matter. 3 Once upon a time, 20 billions of years ago, all matter (all elementary particles and all quarks and their girlfriends- antiparticles and antiquarks, all kinds of waves: electromagnetic, gravitational, muons… gluons field ….. etc.) – was assembled in a ‘single point ‘ The reason of this unity is gravitational force. 4 Questions : How did the ‘single point ‘ create if the matter can escape from any strong gravitational force? ==================.

Hyperion

Posted: 01.22.11, 04:40 PM

He made a very silly math mistake from 15:45 to 17:30 . If quarks were a billion times denser than neutrons, then an object of quark matter would have 0.1% the diameter of an equivalent mass neutron star. He over-thought a straightforward problem. I enjoyed the entire presentation, though.

kevin_rosa

Posted: 01.16.11, 10:13 PM

great video. theoretically surviving an event horizon is a fascinating concept. my only question came when he estimated how long you would survive before being stretched to death: is that estimate in relation to an outside observer's perception of time or your own? i thought special relativity states that a few seconds in the high gravity of a black hole would last beyond the end of our universe/end of time (if there is an end). and on a side note, could that possibly be a way of human beings surviving until the big crunch [if that happens]