In physics, Faddeev-Popov ghosts (also called ghost fields) are additional fields which are introduced into gauge quantum field theories to maintain the consistency of the path integral formulation. They are named after Ludvig Faddeev and Victor Popov. Every gauge field has an associated ghos...
Inertia is the resistance of any physical object to a change in its state of motion or rest, or the tendency of an object to resist any change in its motion. The principle of inertia is one of the fundamental principles of classical physics which are used to describe the motion of matter and how it is affe...
Title: Characterisation of Seven Ultra-Wide Trans-Neptunian Binaries Authors: Alex H. Parker, JJ. Kavelaars, Jean-Marc Petit, Lynne Jones, Brett Gladman, Joel Parker The low-inclination component of the Classical Kuiper Belt is host to a population of extremely widely-separated binaries...
The KH-11 KENNAN (KENNEN according to other sources), renamed CRYSTAL in 1982 and also referenced by the codenames 1010, and "Key Hole"), is a type of reconnaissance satellite launched by the American National Reconnaissance Office since December 1976. Manufactured by Lockheed in S...
A ULA Delta IV heavy rocket is scheduled to will launch U.S. National Reconnaissance Office classified satellite (NROL-15) from SLC-37B at Cape Canaveral, at 10:13 UT, 28th June, 2012. See more
Playfully Inspiring Girl Engineers After studying and observing how girls play, three inventors Alice, Bettina, and Jennifer, invented Roominate, "a kit of wooden building pieces and circuit components with which a child can use her creativity to design, build, wire, and decorate her ow...
Title: Unique sextuple system: 65 Ursae Majoris Authors: P. Zasche, R. Uhlá, M. lechta, M. Wolf, P. Harmanec, J.A. Nemravová, D. Koráková Context. 65 UMa belongs to rather small group of stellar systems of higher multiplicity, whose inner and outer orbits are well-known. Methods: Photometric, s...
Rare copy of Waldseemueller's early America map found in Germany A copy of a rare 16th century map known as "the birth certificate of America" has been discovered in Germany. The map, by the famous cartographer Martin Waldseemueller, is credited with being the first to document and name...
Koko (born July 4, 1971) is a female gorilla who, according to Francine "Penny" Patterson, is able to understand more than 1,000 signs based on American Sign Language, and understand approximately 2,000 words of spoken English. Read more[video=http://www.youtube.com/watch?v=P...
The STS-121 launch window has been adjusted from 9 September until 22 September 2005, resulting in a 4 day window launch instead of one which was originally three weeks long.
Henrietta Swan Leavitt (July 4, 1868 December 12, 1921) was an American astronomer. A graduate of Radcliffe College, Leavitt went to work in 1893 at the Harvard College Observatory in a menial capacity as a "computer", assigned to count images on photographic plates. Study of the plate...
July 4th, 1853 Another trial of Sir Thomas Mitchell's boomerang propeller took place this morning on-board her Majesty's ship Conflict, under the command of Captain W. H. Henderson, O.B., of her Majesty's ship Blenheim, attended by Mr. Murray, chief engineer and inspector of machinery in the do...
A possible magnitude 10.2 nova was discovered K. Itagaki (Japan) on the 26th June, 2012, in the constellation Sagittarius. Position (J2000): R.A. 17 52 25.79 | Dec. -21° 26' 21.5''
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