home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: sci.physics
- Path: sparky!uunet!cs.utexas.edu!torn!skule.ecf!hillp
- From: hillp@ecf.toronto.edu (HILL Peter)
- Subject: BLACKHOLES IN THE CENTRE OF THE EARTH
- Message-ID: <Bt6xuL.2K2@ecf.toronto.edu>
- Organization: University of Toronto, Engineering Computing Facility
- Date: Tue, 18 Aug 1992 17:56:44 GMT
- Lines: 105
-
-
- BLACKHOLES IN THE CENTRE OF THE EARTH, THE SUN AND OTHER OBJECTS.
-
- Author: Peter Collin Hill
-
- Version 1- 27 /7/1992
-
- Objective: To open discussion of this topic. To develop concepts
- presented.
-
- Abstract: Miniature blackholes, remnants of the Big Bang, are
- predicted by Steven Hawking in his book " A brief History of Time", to
- be still in existence. If indeed this is true it is argued that they
- are at the center of the earth, other planets and the Sun. It is
- proposed that their magnetic field explains the origin of the earth's
- and other planet magnetic field and that occasional
- blackhole-blackhole collisions may cause core explosions that may
- explain the origin of the moon, the asteroid belt and other
- astronomical features - possibly the missing neutrino problem.
-
- Authors note: I find the 'hole' thing a bit wild, but it is a good
- exercise in developing understanding. I have so far not been able to
- conclusively disprove these propositions and therefore offer it for
- open discussion.
-
-
- Current day explanations of terrestrial magnetic fields are
- sufficiently weak, and our understanding of blackhole sufficiently
- sketchy, that a possible theory combining the two may prove hard to
- disprove.
-
- Miniature blackhole are predicted to be remnant from the big bang.
- Back of the envelope calculations have suggested that there may be
- sufficient numbers of them within the solar system for their
- gamma-rays to be detected . .
-
- The black holes may be the mass of mountains and have a 'radius' of a
- grain of sand or less. They would fall into the center of planets and
- suns but take billions of years to eat up their hosts. No structure
- would be strong enough to stop such a hole from falling in to the
- center of the planet.
-
- There is no information available about the magnetic fields of black
- holes. Neutron stars, however, display a strong field in the now
- familiar manifestation of pulsars. The magnetic field of the
- collapsing field is pinned to the conducting surface of the star, and
- by Gauss's law intensified on the contracted surface. Conservation of
- angular momentum lead to their current very high rate of spin. It
- would not be unreasonable to assume blackholes also have strong
- magnetic fields.
-
- The earliest theory of the Earths magnetic field, put forward by the
- P.M.S Blackett school, proposed some large scale law of physics that
- would apply for very large bodies and not for the standard lumps of
- metal we observe around us. As no simple scaling law could account
- for the size of magnetic fields in bodies such as the sun and other
- magetic stars so the theory was abandoned in favour of the dynamo
- theory. The suggestion that the core of planets and stars could be by
- some wierd physics superconducting is in a sence a throw back to the
- "something different about large bodies - Blackett theories". This
- "black hole in the centre" idea is of the same gendre but may be
- equally credible.
-
- What is wrong with the dynamo theory, in which motion of a conductor
- through a magnetic field provides the current that inturn sustains the
- magnetic field? Terrestrial magnetic fields suffer from the problem
- that dynamo is electrically shorted. As the inner core is conducting
- the establishment of polloidal and torroidal currents are necessary to
- run magnet-earth but conceptually very difficult to achieve. Currents
- and fields can be initiated by chemical effects and in the case of
- massive bodies gravitational separation of charges. There is a
- possibility of the magnetic field building on itself(Currents -
- leading to fields-leading to currents) over millions of years all the
- time powered by thermal convective forces. A theory sufficiently
- general to explain all planetary magnetic fields and to overcome the
- obstacle electrical shorting is yet to be developed.
-
- It is noteworthy that nuclear powered convective currents and
- blackholes, are philosophically speaking very similar explanations:
- one relies on the energy stored billions of years ago in a supernova
- that produced the radioactive fuel, while the other relies has is
- origins not that much further in the past event -- the beginning of
- time.
-
- It is proposed that backhole in the center of the earth are the cause
- of our magnetic field. Two orbiting holes in the center of earth may
- be sufficiently unstable or chaotic to explain the chaotic change in
- direction of the poles, but the relatively stable intensity of the
- field.
-
- Billions of years ago when two holes in the center of the Earth
- collided the core explosion could have shed the crust, providing and
- alternative explanation for the origin of the moon. This theory might
- not be as parameter ridden as the collision theory. As the moon is
- made of material that does not contain blackholes, it has a very low
- magnetic field.
-
- A core explosion of a planet outside the orbit of Mars may explain the
- asteroid belt.
-
- Finally, the missing neutrinos may be due to blackholes in the sun.
-
- I would appreciate information and discussion of such things as the
- magnetic fields of other planets and the nature of blackholes.
-
-