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 A
The assembled FG phase showed essentially the same permeation selectivity as Mac98A FG phases: both FG phases excluded the inert probe mCherry protein (~30 kDa), but at the same time allowed strong partition (partition coefficients ~2000) of the nuclear transport receptor NTF2, which is ...
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 ...
of that atom. This unit is the basis for determining the relative atomic weight for all other elements. A hydrogen atom is assigned an atomic weight of 1 (rounded from 1.008) because the mass of a hydrogen atom is roughly equal to 1/12th the mass of a ...
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...
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'...
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 ...
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...
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 ...
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...