Watch this funny You Tube video “ir-relevant Astronomy” in which a screen is used for demonstrating & a charac?
ter called “FUNKY” fires a gun to make that screen work.
My first question is What that screen is ?It is a projector, a TV or a Computer screen?
And the guy which is firing a gun?IT EMITS VISIBLE LIGHT which we can see reaching the screen.
HERE IS THE LINK OF THIS VIDEO:
And my second question is :
sINCE our solar system is revolving around Centre of Milky-way due to gravity & the CENTRE OF MASS lies very near to the sun.
The same way MILKY WAY also revolving around something bigger in terms of thing of massin\ve CENTRE OF MASS.
i DON’T REALIZE THEN WHY REALLY galaxies collide at all if they had a constant path of rotation in course of there orbit?
And it is a scientifically proved FACT that galaxies collide then it means the thing around which our MILKY-WAY galaxy is revolving may also probably will colloide with something massive {in comparison}?
About that screen, that might still be a Sci-Fi thing in the present time, but we already see the existence of “touch screen” phenomena in cellphones and cash registering computers. So, it is not a great wonder that a bombardment of photons could be devised to replace the touch of the hands.
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Our Solar System, is only one of the millions of solar systems revolving around, in an orbit around the center of the Milky Way galaxy. It is a scientifically backed opinion, that most of the stars in the constellations we see are having a solar system of their own. For it is not a far-fetched possibility that 90% of the stars are big enough to have planets around them. Our own solar system is located somewhere in the interior of the Milky Way, in one of the spiral arm.
There seem to be a lot interesting and conflicting theories about the movement of galaxies. If the theory about “redshifts” is to be believed, it espouses that galaxies are going away from each other. The Big Bang has given that primal movement to all matter to spread radially outwards as should be the case with an expanding universe that ours is believed to be. In effect, that would make the separation between existing galaxies even much greater. But in the later end when the “Great Crunch” happens, the whole universe is theorized to collapse into itself, to form what they call the “singularity” which was the origin of everything.
But in the event that galaxies had collided, just for the sake of argument, there would not be much explosion that would ensue. The solar systems which are in each one of the galaxies would just rearrange themselves and revolve on a center that would be formed depending on the distribution of mass of the combined system that would result. And taking into account the massive blackholes that are believed to be the centers of galaxies, then two possibilities may result. One, the blackholes may merge into one, or secondly, they might just revolve around each other. The case of bodies orbiting each other results when collision is not centroidal, meaning that they just happen to pass near each other, and get caught in each other’s gravitational field. And if the mass of one such party in the collision is so comparatively small compared to the other and the speed greater, the smaller body would just be shot out in an hyperbolic orbit, as though in a “sling shot” as what happened to comets orbiting near our sun.
It is even generally believed that constellations, as a group of stars, may just pass through each other without damage if ever they would collide. But in the case where a massive center exists, as what they believe the Milky Galaxy has, then it could just be anybody’s guess what happens next.
BENEX-STAR AVENUE- SOLAR PATH LIGHT ( SIMPLE VERSION)