An element, simply put, is afundamental unit of matter that cannot be easily broken down. It consists of a specific number of protons and variable neutrons and electrons. All of matter is made of these 118 elements, combined in various ratios and kept in different states, like solids. Depen...
The atom is the most fundamental unit of matter that can be associated with a particular element by its atomic structure. The atom consists of a nucleus containing protons (positive charge) and neutrons (neutral charge) in nearly equal numbers. The total mass of the atoms is the sum of the...
Before we can explore the galactography of war, we first must ask whether war is in any sense a "universal" phenomenon.* If the answer is clearly negative, our subject matter may be a null set. At least to the extent that competition and aggression are recognized solutions to ecological ...
These cooperative Lamb shifts, named because the presence of many identical atoms in a tightly confining space modifies the electromagnetic mode structure around them, are an important factor as the numbers of atoms in clocks continue to grow. “If you can understand and control these interactions ...
(the problem is in the real world the answer appears to be "Nothing") In terms of pure offensive firepower, there's very little you can do with a fighter that a cruise missile can't do better in a space game context. Of course, the best reason to have fighters is because they make...
In any compound, the numbers and kinds of atoms remain the same—the total number and types of paper clips that you start with are the same as when you finish. Daltons atomic theory formed the groundwork of chemistry at that time. Dalton envisioned atoms as tiny spheres with hooks on ...
That's a lot of work. If you are trying to write your own future history, legendary SF author Isaac Asimov shows the way. He took the Decline and Fall of the Roman Empire, filed off the serial numbers, replaced "Roman Empire" with "Galactic Empire", and thus wrote the Foundation ...
It would be nice to choose it from the natural numbers (i.e., ℕ := {1,2,3,…}), and thereby get an increasing sequence of possible departure dates, starting from a value that is the earliest. Requiring that tW ≥ 0, some algebra shows that, if P0 > P1, then we must have ...
But if you ever have the time or the inclination, somebody asked me a question I am not qualified to answer. --- question starts --- Do you know of any word that represents all life forms that originate from a single solar system? "Sol-system life" is all I've come up with to ...
Pierre glanced at the flickering numbers on the right of his screen. "Fourteen minutes, and everything looks fine." Carole looked at a display across the room. The field of view of the monitor camera contained the glowing sphere of one of the larger condensed asteroids in the lower corner,...