MPJ

More and more I found myself troubled by following worldwide news on daily basis. It's not that I have lack of free time to filter them all out. More, it is that recently I started feeling certain reluctance reading the headlines filled with conflicts, wars and civil fights, religious and cultural animosities, political and all the other disgusting affairs, political elections full of poorly casted actors, stories that you have to use superb power to read them between the lines, worldwide armed conflicts and warfare in foreign countries that I have not the slightest clue what initiated them all and why, mediocre journalism and sensationalism in the worst meaning of the word, etc... The list is endless and believe me I'm not even referring to all those black chronicle stories with unappropriated articles where i.e. somebody killed his parents with an ax or mass murder of cinema crowd by a lunatic in batman suit or worse. Or in today's case and what inspired me to revive this...

Let's turn our imagination to the edge and do something different today. We can call it thought experiment, childish game, day dream, science fiction, pure fantasy or whatever we want but let's move the boundaries far away from Earth, far away from our Solar system, even farther from our Galaxy and do something wild. Let's choose a planet. Or to be more precise, let's select one in the vastness of cosmos and move away from this Earth and start new life. Of course in day dreams we are allowed to do this just because the imagination is what our species differs from others on Earth. Ok, to begin this little endeavor, we need a little astronomy to start with. What we know for sure is that our galaxy alone contains more than 200 billion stars, majority of them not so much different from our Sun and by using basic statistical study based on planet finder's microlensing technique there are approximately 100 billion planets orbiting them. Perhaps more. Multiple that b...

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...