* Dyson bubble

# REDIRECT Dyson sphere # Dyson bubble

Since then, other variant designs involving building an artificial structure or series of structures to encompass a star have been proposed in exploratory engineering or described in science fiction under the name " Dyson sphere.

* Orbital Forests — Not actually planets, but orbiting forests ( having atmospheres kept in by containment fields ) created by the Ousters, who live in them ( along with other types of space colonies ); eventually these grow into Dyson trees, a biological variant of Dyson Spheres.

A cut-away diagram of an idealized Dyson sphere | Dyson shell — a variant on Dyson's original concept — 1 Astronomical unit | AU in radius.

A Class B stellar engine is a Dyson sphere — of whichever variant — built around the star, which uses the difference in temperature between the star and the interstellar medium to extract usable energy from the system, possibly using the phenomenon of thermoelectricity ( heat engines, or thermal diodes ).

A Dyson sphere is a hypothetical megastructure originally described by Freeman Dyson.

Dyson is credited with being the first to formalize the concept of the Dyson sphere in his 1960 paper " Search for Artificial Stellar Sources of Infra-Red Radiation ", published in the journal Science.

In response to letters prompted by this paper, Dyson replied, " A solid shell or ring surrounding a star is mechanically impossible.

Freeman John Dyson FRS ( born December 15, 1923 ) is a British-born American theoretical physicist and mathematician, famous for his work in quantum electrodynamics, solid-state physics, astronomy and nuclear engineering.

Dyson is a member of the Board of Sponsors of the Bulletin of the Atomic Scientists.

Despite sharing a last name, he is not related to the early 20th century astronomer Frank Watson Dyson, but as a small boy Freeman Dyson was aware of Frank Watson Dyson.

" I have the sense that when consensus is forming like ice hardening on a lake, Dyson will do his best to chip at the ice ," physics Nobel laureate Steven Weinberg said of him.

Dyson is best known for demonstrating in 1949 the equivalence of the formulations of quantum electrodynamics that existed by that time – Richard Feynman's diagrams, on the one hand, and, on the other, the operator method developed by Julian Schwinger and Sin-Itiro Tomonaga.

, Dyson is the president of the Space Studies Institute, the space research organization founded by Gerard K. O ' Neill.

Dyson is a long-time member of the JASON defense advisory group.

Dyson is a regular contributor to the New York Review of Books.

Dyson cheerfully admits his record as a prophet is mixed, but " it is better to be wrong than to be vague.

Dyson conceived that such structures would be clouds of asteroid-sized space habitats, though science fiction writers have preferred a solid structure: either way, such an artifact is often referred to as a Dyson sphere, although Dyson himself used the term " shell ".

Dyson agrees that anthropogenic global warming exists, and has written that " ne of the main causes of warming is the increase of carbon dioxide in the atmosphere resulting from our burning of fossil fuels such as oil and coal and natural gas.

Dyson is well-aware that his " heresy " on global warming has been strongly criticized.

The number of times the interaction Hamiltonian acts is the order of the perturbation expansion, and the time-dependent perturbation theory for fields is known as the Dyson series.

The Dyson series can be alternately rewritten as a sum over Feynman diagrams, where at each interaction vertex both the energy and momentum are conserved, but where the length of the energy momentum four vector is not equal to the mass.

" and the sequence of events already related up to the moment when Dyson fell, shot in the temple.

Tattershall was already served by a short canal from the River Witham, which had been constructed in 1786 by John Gibson, a merchant from Tattershall, and John Dyson, who was from Bawtry.

It consists of a partial Dyson Sphere # Dyson swarm | Dyson swarm composed of 5 Dyson Rings of solar collectors ( the Class B component ), and a large statite Shkadov thruster ( the Class A component ).

A more rigorous proof was provided in 1967 by Freeman Dyson and Andrew Lenard, who considered the balance of attractive ( electron – nuclear ) and repulsive ( electron – electron and nuclear – nuclear ) forces and showed that ordinary matter would collapse and occupy a much smaller volume without the Pauli principle.

Local public transport is provided by Dyson Group ( which took over Mylon Motorways ) who run buses on a number of routes both within Wodonga and to Albury.

Primary education in the parish is provided by Malvern Wells Church of England School and the Wyche Church of England School that feed the two Malvern secondary schools of The Chase in Barnards Green, and Dyson Perrins in Malvern Link.

David Willetts, the government minister responsible for British universities, said he will thoroughly investigate the statement provided by James Dyson.

The concept of self-replicating machines has been advanced and examined by Homer Jacobsen, Edward F. Moore, Freeman Dyson, John von Neumann and in more recent times by K. Eric Drexler in his book on nanotechnology, Engines of Creation and by Robert Freitas and Ralph Merkle in their review Kinematic Self-Replicating Machines which provided the first comprehensive analysis of the entire replicator design space.

* The concept is discussed in Carl Sagan and Ann Druyan's 1985 non-fiction book Comet, and several paintings of Dyson trees around Saturn and in interstellar space are provided in the book by Jon Lomberg.

Finally, the resulting jets would spiral outward from the star's equator rather than emerging straight from the poles ; this could complicate harvesting it, as well as the arrangement of the Dyson sphere powering the system.

A Dyson shell with an inner surface partly covered by a mirror would be one incarnation of such a system ( although it still suffers from the stabilization problems as a non-propulsive shell does ), as would be a Dyson swarm with a large statite mirror ( see image above ).

The components available to the player can vary greatly, from emergency supply components that, when used, will be destroyed but will allow a ship to continue moving for a longer time, ship bridges, long-range scanners and shield generators to weapons of various kinds, boarding parties, cloaking devices right up to Dyson Sphere construction material and star-destroying devices.

Examples include Bill Mazeroski, who is the only player in Major League Baseball history to end a seventh game of the World Series with a walk-off home run ( however, Mazeroski is a member of the Baseball Hall of Fame, due primarily to his status as one of the greatest defensive infielders of all time ); Paul Henderson, a Canadian ice hockey player who scored the deciding goal in the 1972 Summit Series ; Mike Jones, who tackled Kevin Dyson at the one-yard line on the final play of Super Bowl XXXIV ; and Jimmy Glass, an English football goalkeeper, who is remembered for scoring a goal in the last seconds of the final day of 1998-99 English Third Division that kept his club in The Football League.

and So On that the scale of The City is beyond that of a Dyson sphere, reaching Jupiter's planetary orbit ( 32. 675 AU, or roughly 4, 901, 250, 000 km ); this is also suggested in scenarios such as Blame!

In the US, Hoover's competition includes: Royal, Dirt Devil, and Vax ( all of which are owned by Hoover's Hong Kong owner Techtronic Industries ); Kirby ; Eureka ; Dyson ; Electrolux ; Oreck ; Panasonic ; Bissell ; and Kenmore ( the house brand of American store chain Sears, which is manufactured predominantly by Panasonic ).

As Titans ' coach Jeff Fisher pointed out, the original objective of the play was not to achieve a direct score ( a touchdown ); it was to have the receiver ( Dyson ) advance the ball into the range of Del Greco, the Titans ’ placekicker.

Their total concentration on Wycheck ’ s right sideline run, left not only the left side-line of the field undefended ( all the way to the end-zone ); it also meant, that all of the defensive-backs on the kicking team, were completely out of position to make any serious attempt to over-haul and catch, a starting NFL wide-receiver ( e. g., Dyson ).

* Jon Dyson – Writer / Yorkshire News ( Anchor );