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When two quasars appear to be very close to each other as seen from Earth (separated by a few arcseconds or less), they are commonly referred to as a "double quasar". When the two are also close together in space (i.e. observed to have similar redshifts), they are termed a "quasar pair", or as a "binary quasar" if they are close enough that ...
In physics, the special theory of relativity, or special relativity for short, is a scientific theory of the relationship between space and time.In Albert Einstein's 1905 paper, On the Electrodynamics of Moving Bodies, the theory is presented as being based on just two postulates: [p 1] [1] [2]
A conjunction is an apparent phenomenon caused by the observer's perspective: the two objects involved are not actually close to one another in space. Conjunctions between two bright objects close to the ecliptic, such as two bright planets, can be seen with the naked eye. The astronomical symbol for conjunction is (Unicode U+260C ☌). [4]
SU(3) c color transformations correspond to "rotations" in color space (which, mathematically speaking, is a complex space). Every quark flavor f , each with subtypes f B , f G , f R corresponding to the quark colors, [ 79 ] forms a triplet: a three-component quantum field that transforms under the fundamental representation of SU(3) c . [ 80 ]
One speculation is that a void could cause the cold spot, with the possible size on the left. However, it may be as large as 1 billion light-years, close to the size of the Giant Void. B&B Abell-4 void: 489,000,000: B&B Abell-15 void: 489,000,000: Tully-3 void: 489,000,000: Catalogued by R. Brent Tully 1994EEDTAWSS-10 void: 469,440,000: Tully-1 ...
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A former NASA commander has revealed that while piloting his private plane in Texas last summer he nearly had a collision with two mysterious “metallic, spherical orbs.” Astronaut Leroy Chiao ...
Diagram showing how the polarity of the QRS complex in leads I, II, and III can be used to estimate the heart's electrical axis in the frontal plane. The QRS complex is the combination of three of the graphical deflections seen on a typical electrocardiogram (ECG or EKG). It is usually the central and most visually obvious part of the tracing.