atomic mass rounded off to an integer.1962Nature19 May 621/1Some coare generally given in atomic mass units. These units are based on a scale in which the mass of the carbon isotope C612is taken to be 12. 1821T.
Atomic weight is expressed using grams/mol or atomic mass units (u) while atomic mass is quantified using atomic mass units (u). Accurate values of atomic weights of all the elements are given in Table A.4 in Appendix A. If an element has a nonnatural abundance of its isotopes (i.e....
1a, a 20 μM (~1.2 mg/ml) solution of the histidine-tag-free prf.GLFG52 × 12 self-assembled into an FG phase, in the form of scattered particles (“FG particles”) at 21 °C. We found the FG domain concentration within the assembled FG phase to be ~4.5 mM (260...
A launch laser or mass driver powerful enough to boost huge masses into orbit can smash a combat starship like a sledge-hammer hitting a cockaroach. If there is a planetary disaster, spaceports will suddenly be thrust into the role of operational center. After all, it will be the source ...
Alpha : (kg/kW) power plant mass in kilograms divided by kilowatts of power. So if a solar power array had an alpha of 90, and you needed 150 kilowatts of output, the array would mass 90 * 150 = 13,500 kg or 13.5 metric tons Specific Power : (W/kg) watts of power divided by...
One FH has a liftoff mass of 1,462,836 kilograms. It is assumed that one FH can put 53,000 kilograms into LEO, 17,216 kilograms into either a lunar or Earth-Moon L1 (EML1) orbit, and 5,739 kilograms onto the lunar surface. Mass doesn’t necessarily have to be lifted directly ...
Galactic a galaxy, most or all of its stars, up to all mass associated with it. Universal the entire universe, all or most galaxies within it, or all major galaxy filaments or equivalent highest-level structures. Multiversal multiple universes, or whatever that exists outside of the setting'...
Golden-aged science fiction authors E.E."Doc" Smith and John W. Campbell jr. noted this and postulated space-opera science that required elements in the middle of the periodic table for direct conversion ofallthe mass into energy. In Doc Smith's"Skylark"series the element was copper (63 ...
After a certain mission duration, it will be cheaper (in terms of mass) to use a CELSS instead of transporting consumables. With a primitive CELSS this happens at about 145 days, increasing the efficiency will bring the break-even duration point lower. The mass of the CELSS is constant rega...
Giarratana, Salvatore Masselle Francis Conant John A. L. K. Claims: What is claimed is 1. In a hollow tubular, electrically conducting sample accommodating and heating device for flameless atomic absorption spectrophotometry of the type in which heating current is passed through the tube by electr...