MPJ

Up there, within our own Solar system (and beyond) everything is in motion. There is no space object that is standing still. Ever since the big bang. Even the black holes that are capturing things into singularity point are moving across the universe along with their own neighborhood. The same is with Earth and its first neighbor Mars. They are both orbiting the Sun in their own time schedule - Earth needs full year to complete the cycle, while Mars in its own distant orbit needs 322 more days to do it. While both, Earth and Mars travel around the Sun, sometimes they got closer to each other by the approximate 55 million kilometers (while the farthest distance between the two is about 400 million kilometers).

It's hard to create a list of all the scientists in the history of mathematics and physics who better applied theoretical knowledge into the hardware that ultimately worked and moved the world to the next step of existence. But if we try to do it, John von Neumann would be among the top five in the list of scientific GOATs. Probably the best of all of his contributions is in the history of computer science - along with Arthur Burks and Herman Goldstine, he published a paper* in 1946 that practically described the architecture of a modern computers as we are familiar with today. However, what he will be most remembered for is not a machine in existence today but one that is still just a theoretical and basically only an idea. Not yet anyways. In short, design of a von Neumann probe or a self-replicating spacecraft is not that far-fetched from all what we know today and if humanity sees its survival on Earth difficult in the future (to say the least) and tries to became interste...

Last night I had a vividly strange science fiction dream. Like with most of my dreams, and dreams in general I guess, it was hard to recall all the details in the morning and this one was no exception, but in the nutshell the scene started with me in some science lab, describing the idea of how to effectively make a tiny hole in the universe. It was pretty simple - I was using four Tesla coils, perfectly positioned in the corners of the large square with edges of about couple of meters long and with a small, battery sized, two metal plates positioned in its center of the square. The experiment was that at the precise moment, Tesla coils fired four filaments of thunder, reaching the center point exactly between two metal plates in the same time, initiating a process that in the end created a tiny breach in the universe that I was describing in the dream as a brane between dimensions and within the void between multiverses. Anyway, in the process, one plate goes from metallic through dar...

Don't take this title too seriously. It's wrong on multiple levels. Grammatically and scientifically. Nonetheless it fits perfectly for this post. As for grammar amiss - I used Latin root word 'Gravis' which means heavy and it is actually perfect adjective for gravity as we perceive it here on Earth. As for scientific issue, the rest of the title might be all wrong. If we glimpse into features of three main natural forces of the universe, it is obvious that they work in more or less the same fashion - they use carriers or elementary particles to mediate the force through the force field. Photon is one of them and it carries electromagnetism while strong and weak force in nucleus respectively are mediated by gluons and w/z bosons and they are all confirmed in experiments. Gravitons suppose to be the same thing for gravitation force, but they are never found and confirmed either directly or consequently. Ever since Einstein we are having second thoughts about whether or ...

There will come one day in the future. Relatively and astronomically speaking, it might come sooner than we think. It could happen way before we realize that there is no turning back. The day when mother Earth will simply say - sorry guys, I have no more energy to sustain this kind of life anymore and when most of biodiversity cocoons on Earth will reach the ultimate hazard and start imploding back into themselves. Air and water pollution will help a lot and not even planet's regular motions will be able to take us into another interglacial cycle. It is as much inevitable as what we are going to do next. We will take a long look toward the stars and say: "Well, we have to do this sooner or later. It's time to leave the Earth. Time to jump into Christopher Columbus's shoes again. And find the new home." But we will not get far. There will be no warp drives, "phasers on stun", robots, AIs or artificial gravity like in Sci-Fi blockbusters and there will b...

Did you know that if you were standing on the near side of the Moon, and for your mass of 80kg and weight of 785N on Earth, due to Moon's lower gravity, you would not feel being heavier than 13kg (130N)? You knew? Ok, did you know that Earth's and Moon's gravities combined gave you different weight on near and far side of the Moon? Slightly yes, but true. Earth and Moon are relatively small celestial bodies but this difference goes even higher if you move from the Moon to the Io or Europe for example as they are also tidally locked by Jupiter just like our Moon is locked by Earth. This would most definitely not help mountains on Avatar's Pandora to float but still, within right conditions and with presence of large mass(es) nearby, considering appropriate composition of the ground I am sure there are solar systems out there with strange conditions to live with, to say the least. "If I have seen further it is by standing on the shoulders of giants” - Isaac Ne...