Earth: Ball Lightning
It should be noted that even though many UFO reports may result from ball lightning, earthlights, gaseous fireballs, or similar phenomenon, we are only interested here in phenomena believed to be uniquely identified. Therefore any of the above mentioned are appropriate for this napster except UFOs, as such. For a less rigorous review of potentially related information, please see the UFO napster in this forum.
Ball lightning caused by oxidation of nanoparticle networks from normal lightning strikes on soil
Observations of ball lightning have been reported for centuries, but the origin of this phenomenon remains an enigma. The 'average' ball lightning appears as a sphere with a diameter of 300 mm, a lifetime of about 10 s, and a luminosity similar to a 100-W lamp. It floats freely in the air, and ends either in an explosion, or by simply fading from view. It almost invariably occurs during stormy weather. Several energy sources have been proposed to explain the light, but none of these models has succeeded in explaining all of the observed characteristics. Here we report a model that potentially accounts for all of those properties, and which has some experimental support. [continued]
http://www.nature.com/cgi-taf/DynaPage.taf?file=/nature/journal/v403/n6769/abs/403519a0_fs.html&dynoptions=doi1104708867
1/19/05
Ball Lightning
A relatively rare form of lightning consisting of a luminous ball, often reddish in color, which moves rapidly along solid objects or remains floating in mid-air. Also known as globe lightning.
http://www.srh.weather.gov/jetstream/append/glossary_b.htm
1/19/05
Another form of lightning that is considered rare but has even been observed moving down aisles within an airplane is ball lightning.
http://www.erh.noaa.gov/car/WCM/Maine-Ly Weather/Spring 2004/convectiveamateurs.htm
For some photos see:
http://news.bbc.co.uk/1/hi/sci/tech/628709.stm 1/18/05
http://news.bbc.co.uk/1/hi/england/hereford/worcs/3090649.stm
http://www.sciencenews.org/articles/20020209/bob8.asp
The PLASMAK™ Configuration and Ball Lightning
...An historical observation of a woman who was "chased" by a Ball Lightning at her own wedding was cited in an ABC television program by Arthur C. Clarke and narrated by George Scott during 1984.
...Applications of PLASMAK™ technology to fusion are exciting.[continued]
http://www.prometheus2.net/bl-tokyo.pdf
Development of the maser-caviton ball lightning theory
The maser-caviton ball lightning theory is briefly described, is compared with the available observations of ball lightning, and is further developed on the basis of the rate equations governing the evolution of the photon number is a single-mode maser [continued]
http://www.agu.org/pubs/crossref/1994/93JD01021.shtml
On the energy characteristics of ball lightning
A compilation of 17 observations of ball lightning showing the most energetic effects is presented along with estimates of their energy content. These observations were chosen from several thousand for the much stronger interaction of each ball lightning on its surroundings, and the method of energy estimation outlined. The case is put that some of the observations show a higher energy than self-contained chemical energy could provide. [continued]
http://scholar.google.com/url?q=http://www.journals.royalsoc.ac.uk/index/DBKL8LUPTR291DUP.pdf[/URL]
[quote][b]The properties and the nature of ball lightning[/b]
The observed properties of ball lightning are given. A model of mean ball lightning taking average iarameters is based on observed data. By comparing the observed data with contemporary information on the processes occurring in activated air, different aspects of the ball lightning phenomenon are analysed.[continued][/quote]
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TVP-46SXJNC-3X&_coverDate=08%2F31%2F1987&_alid=233252780&_rdoc=1&_fmt=&_orig=search&_qd=1&_cdi=5540&_sort=d&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=05d4aaecec89b1a9f2d230a245cea865
[quote][b]The Structure and Stability of Ball Lightning[/b]
The main characteristics of ball lightning are well established. They include its general appearance (shape, size range, brightness, etc.), its peculiar motion and, less satisfactorily, its energy content. A remarkably consistent picture emerges from the thousands of detailed descriptions which are now available. There is, however, no such consistency in the various hypotheses that have been put forward to explain ball lightning. The only thing most of them share is an ability to explain a few aspects of the phenomenon at the expense of physically impossible requirements in other areas. If one is to accept that a single phenomenon is being described in all these observations, it seems clear that ball lightning is, at the very least, an electrical and chemical phenomenon; and several branches of both disciplines seem to be involved [continued][/quote]
[url]http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1994RSPTA.347...83T&db_key=AST[/url]
[quote][b]Ball lightning as a self-organization phenomenon[/b]
The genesis and characteristics of ball lightning are explained in the frame of a new self-organization physical scenario suggested by laboratory investigations of formation and stability of self-consistent extended macroscopic space charge configurations. These are known as fireballs in dc gas discharges and as plasmoids in gas discharges sustained by a radio frequency electric field.[continued][/quote]
[url]http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2000JGR...105.4719S&db_key=AST[/url]
[quote][b]LITTLE BLACK HOLES: DARK MATTER AND BALL LIGHTNING[/b]
Abstract. Small, quiescent black holes can be considered as candidates for the missing dark matter of the universe, and as the core energy source of ball lightning. By means of gravitational tunneling, directed radiation is emitted from black holes in a process much attenuated from that of Hawking radiation, PSH, which has proven elusive to detect. Gravitational tunneling emission is similar to electric field emission of electrons from a metal in that a second body is involved which lowers the barrier and gives the barrier a finite rather than infinite width. Hawking deals with a single isolated black hole. The radiated power here is P R ∝ e−2∆γPSH, where e-2∆γ is the transmission probability. [continued][/quote]
[url]http://arxiv.org/ftp/astro-ph/papers/0212/0212251.pdf[/url]
PF Thread: [url]https://www.physicsforums.com/showthread.php?t=57039[/url]
[quote][b]BALL LIGHTNING DISCHARGE FED BY AN ATMOSPHERIC MASER[/b]
ABSTRACT: The present paper describes the interaction of the maser with the soliton, finally deriving the fundamental ball lightning (BL) equation for the linear heat diffusion case. This equation is a rough first approximation based on many drastic simplifications. It assumes stationarity and neglects the field emission of carriers caused by the maser. Our calculations prove for the first time that the instantaneous feedback present in the atmospheric maser allows the discharge to remain stable in the so far always unstable, much colder, discharge branch at atmospheric pressure, even without field emission processes. In fact, according to the basic Maser-caviton theory, natural BL is too cold for electrons to be present and allow it to exist in the stationary state, so it continually extinguishes and is reignited by very fast maser feedback. These are in fact maser spiking oscillations.
The life of the dynamically stabilized BL soliton consists therefore from a continual succession of deaths and rebirths. [continued][/quote]
[PLAIN]http://radarmet.atmos.colostate.edu/~kwiens/rm3/kwiens/ICAE2003/icae2003/proceedings/ThC3-004-067_Handel_et_al.pdf[/URL]
[quote][b]Plasma Rossby wave as a mechanism for atmospheric fireball's formation[/b]
Summary form only given, as follows. In search of vortex/soliton mechanism for ball lightning and atmospheric fireballs, the properties of rotating plasma have been compared to those of geophysical fluid. This leads to plasma Rossby wave. This wave interacts with velocity field in magnetized rotating plasma and generates plasma vortices and solitons. The similarity of particle's behaviors between geophysical fluid and magnetized plasma together with the properties of turbulent plasma can be used to explain some unusual atmospheric fireball phenomena [continued][/quote]
[PLAIN]http://ieeexplore.ieee.org/xpl/abs_free.jsp?arNumber=550675[/URL]
[quote][b]Two properties of the electromagnetic knots[/b]
Electromagnetic knots are very curious solutions of the standard classical Maxwell equations. Their defining property is that any pair of magnetic lines or any pair of electric lines is a link [1, 2, 3, 4, 5], characterized by the integer nm or ne, respectively, which gives the value of the corresponding helicity [6, 7, 8], and can be interpreted as Hopf invariants [9, 10]. They are interesting not only on their own; recently, they have been used as a basis for a model of ball lightning [continued][/quote]
[PLAIN]http://www.ucm.es/info/electron/publicaciones/ranada/PLA23297.pdf[/URL]
[quote][b]Shafranov's virial theorem and magnetic plasma confinement[/b]
...Now the integrand acquires both positive and negative contributions, which implies that a virial argument cannot exclude the existence of stable finite-energy solitons. Indeed, in [3] it has been argued that stable knotted solitons are present. These solitons are formed within the bulk of the plasma, in an environment with an asymptotically constant background density. A physical example of such an environment is the solar photosphere; the solitons are natural candidates for describing stable coronal loops. Another, somewhat more hypothetical, example could be ball lightning, in the background of the Earth's atmosphere. Such solitons could also become relevant in identifying particularly stable plasma configurations in fusion experiments, when the plasma is kept at finite density by the boundaries of an appropriate vessel. [continued][/quote]
http://www.iop.org/EJ/article/0305-4470/35/11/101/a211l1.html
[quote][b]Physical Mechanism of Nuclear Reactions at Low Energies[/b]
...There are also some special tracks very similar to scratches and ink spots. “Strange” radiation is of spherical form, it resembles a ball lightning, and its duration is more than ten times as great as that of the current pulse arising at electric discharge. With the course of time the luminous sphere (the ball-like plasma formation) is dividing into many small “balls”. [continued][/quote]
[url]http://arxiv.org/ftp/physics/papers/0306/0306072.pdf[/url]
From an engineering student at Penn State. Contributed by Wolram.
[quote][b]Ball Lightning[/b]
*Usually occurs during or right after a thunderstorm. Has been created without any detected electrical storm.
*In most surveys about 70% occurred right after a lightning strike.
*Seasonal variations for the frequency of occurance are the same as for normal lightning, with the majority in the summer.
*Other than being associated with normal lightning from a time perspective, ball lightning seems to be totally different than normal lightning.
*In some cases, the ball was observed to descend down the path of recent lightning strike and stop near the ground at the bottom. In some cases the ball appeared at the impact point.
*No current theories can convincingly explain how a such a ball could be created directly by a lightning bolt.
*In a shockingly high percentage of cases the balls actually entered buildings through windows and doors.
*Similar balls have been reported as eminating from tornadoes, cyclones, and hurricanes. In these cases high electric fields are present, like in a lightning strike. [continued][/quote]
- dead link -
1/11/05
[quote][b][A] Ball lightning bibliography[/b][/quote]
[PLAIN]http://www.fis.unipr.it/~albino/documenti/Bibliografia_BL.html[/URL]
1/11/05
[quote][b]BALL LIGHTNING AND PLASMA COHESION[/b]
The phenomenon of ball lightning has been observed for a long time, but the nature of these luminous balls has been unknown. It is proposed here that they consist of highly excited Rydberg atoms with large polarizabilities that bind them together. Thus the cohesion of the balls comes from photon exchange forces (London dispersion forces) rather than the more usual electron exchange (chemical) forces. The cohesion in plasmas generated at the back faces of detonating explosives has a similar basis. Estimates are given to justify this interpretation. [continued][/quote]
[url]http://arxiv.org/ftp/physics/papers/0302/0302063.pdf[/url]
[quote][b]BALL LIGHTNING EXPLAINED AS A STABLE PLASMA TOROID[/b]
... The stability analysis for the plasma toroid has been completed that explains how the plasma toroid remains stable in atmosphere. The spinning plasma toroid has the appearance of Ball Lightning, in observations, computer simulations, and equations. The plasma toroid explains how a plasma ring can be stable in atmosphere with no external magnetic fields, and how it can contain many electrons with high energy. Ball lightning is often reported as a ring current, in toroid shape, and since a spinning ring appears as a sphere or ball, the spinning plasma toroid provides an explanation for Ball Lightning.[continued][/quote]
[PLAIN]http://www.electronpowersystems.com/Images/Ball%20Lightning%20Explained.pdf[/URL]
[url]https://www.physicsforums.com/showthread.php?t=115279[/url]
Thanks Wolram.
Dead links will be repaired when possible. Some papers may no longer be available online.
More to come...