... 2012 August 21 . DNA: The Molecule that Defines You . ... This molecule, called DNA , spans about two meters stretched out but is coiled into every cell in your body. The many copies of DNA that compose you were all copied from one single cell, and your body is continually making new copies. ... No one knows if DNA-like molecules will also define life that originates outside of Earth. ... About APOD | ... NASA Official: Phillip Newman Specific rights apply . ...

... The available observational data on masses and/or luminosities of binary components and the current models for different chemical compositions of Pop I stars were used to improve the mass-luminosity relation for stars of moderate masses. ... This technique was also applied to decompose the low-mass components of several stars suspected to be unresolved binaries. ... The method is based on the minimum determination technique applied to functions of several variables covering a limited range of values...

... All the information about the propagation of a given plasma wave mode is contained in the appropriate dispersion relation, which relates the angular frequency w to the wave number k (magnitude of the propagation vector k ). ... Phase velocity . ... Group velocity . ... Wave propagation can also be described using diagrams called phase velocity or wave normal surfaces , which give the variations of the magnitude of the phase velocity of plane waves with respect to the magnetic field direction: . ...

... Let us first find out which way -- rise in spectral resolution with some loss in the S/N ratio or increase in the S/N ratio with a fixed spectral resolution -- is better for the purpose of reduction of equivalent width determination errors. ... N -- number of counts for 1 ? ... line equivalent width, . ... Thus if the spectral resolution is managed to be increased (i.e. to decrease )without loss in the number of counts falling at 1 ?, the equivalent width measurement error is then proportional to . ...

Report “Laboratory zero-baseline interferometer tests” (ZBT) was prepared and issued in ASC (35 pages including 17 figures and diagrams in Russian language). ... The Ground-Space radio interferometer (OVLBI) Radioastron includes several space and ground-based segments which are designed and manufactured by different countries and organizations. ... ZBI tests (for OVLBI) were implemented in Russia firstly. The tests were implemented by joint team of ASC, JPL and NRAO in 1999. ...

... Results 3. ... 2004), Escapa (2011): Hamiltonian approach, simplified elastic response. ... PАg. ... Let us recall that assuming a rheological model based in Smith (1974) , Wahr (1979) and IERS (2010) for the elastic/anelastic response of the Earth, the second order harmonic components of the redistribution potential admit a truncated development in complex spherical harmonics in the form Generalized Love Numbers, dependent on: Harmonic order, Excitation frequencies In magnitude, PАg. ...

Definitions of Magnitudes and Surface Brightness 1 The magnitude system 1.1 Apparent magnitude Astronomers are stuck with the antiquated old system of magnitudes and so a clear explanation of what this system is and how it relates to more sensible units is important. ... 1.2 Absolute magnitude Absolute magnitude is a logarithmic luminosity scale. ... One usually goes by the round about process of referring to the absolute magnitude of the sun. ... Magnitudes and surface brightness 6/6 ...

Weekly Bulletin on Solar and Geomagnetic Activity Highlights on 21 - 28.12.2015 г., Forecast on 28.12.2015 - 03.01.2016, Carrington Rotation 2171 (28,17.11.2015) SUNSPOT-FORMING ACTIVITY OF THE SUN REMAINED AT THE MIDDLE LEVEL. ... ON THE VISIBLE SOLAR DISK 4-2 QUITE SUNSPOT GROUPS, ONE WAS BIG, HAVE BEEN OBSERVED. IN THE LAST 21 - 24.12 FIVE SOLAR FLARES OF MIDDLE CLASSES WERE OCCURENCE. ... FLARE ACTIVITY 21 -24.12 WAS AT THE MIDDLE LEVEL AND IN OTHER DAYS - ON THE LOW LEVEL. ...

UFO Forum Message . Forums: . ... Post . ... It Really Is Relative . ... Post Message | ... If you are on the Earth the moon does not rotate around its own axis. ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... Alien Life . ... Earth Satellites . ... Often travelling on holidays you can change your watch to the time at your destination by winding your watch forward or backwards. ... When astronauts travel they use Earth time, i.e. one day/ 24 hours, to help them whilst living in the Space Station. ... A day on Mars is only 39mins longer than here on Earth maybe it could useful when travelling on Mars to adopt Martian time and maybe have an extra 39mins to have a lie-in, or bond with the locals? ...

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