Recent content by Alvasin

Propositional logic begins with propositional variables, atomic units that represent concrete propositions. A formula consists of propositional variables connected by logical connectives in a meaningful way, so that the truth of the overall formula can be uniquely deduced from the truth or...

The Hubble universe constantly expands (all zones or spheres, some of which might be as small as the Planck length, do not necessarily contract after expansion) and inrushing energy feeds the spinning fractal. As in the vortex of a tornado, the spin draws in surrounding energy leaving a depleted...

I once heard a recorded lecture by Alan Watts where he explained the two dominant Myths of Western culture involving the nature of the Universe. He then described a Chinese model of the Universe to contrast the other two. Here is a brief summary of each of the models… 1.) The Ceramic Model –...

In String Theory, the myriad of particle types is replaced by a single fundamental building block, a `string'. These strings can be closed, like loops, or open, like a hair. As the string moves through time it traces out a tube or a sheet, according to whether it is closed or open. Furthermore...

UsuallyThere are two primary classifications of heat exchangers according to their flow arrangement. In parallel-flow heat exchangers, the two fluids enter the exchanger at the same end, and travel in parallel to one another to the other side. In counter-flow heat exchangers the fluids enter the...

Spring usually use to absorb the energy.Where it is needed to absorb huge amount of energy there usually use massive spring.Their absorbing power is outstanding.energy absorb equation can be written as- ω = [k/(M + m/3 + o(m2/M) )]1/2.

Which us easier to pull or push?Is there any impact of friction?If so how the mass will effect to that?

The word propeller conjures images of helicopters, beanie hats, and toy boats. However, in the early 1800s propellers generally meant paddle-wheels. That began to change with the launch of the Archimedes in May of 1839. The ship was unique in an age of paddle-wheel steamers. The Archimedes was...

Special relativity is bound up with the impossibility of transmitting messages faster than the speed of light. If special relativity is true, no material carrier of a message can be accelerated from rest to speeds greater than that of light. A message transmitted faster than light would...

in the mirror you see your reflection, your mirror-image, since ppl aren't 100% same looking left and right, your reflection will look a bit different than the real you. (her left is your right and vice versa)... it's like identical twins, most are mirror images of each other, not the same...