Research is separated into the 12 factions, each with their own research points. Research points are earned by either defeating nodes within faction territory, or defeating Capital Ships in random encounters at neutral nodes. Free star points are earned from encounters in neutral nodes. For the Daazen faction, Abandoned Stations will also give research points. The research menu will list how many points are currently available for each faction. Research points are dropped by faction nodes and bases as alien technologies. Research points can also be bought in smuggler bases, where multiple faction points from multiple factions can be bought for 1 star per point. Research points can be also found during a planet exploration.
Clinical trials are research studies that look at new ways to prevent, detect, or treat diseases and conditions. The goal of a clinical trial is to determine if a new test or treatment works and is safe. Although people may benefit from being part of a clinical trial, they should know that the primary purpose of a clinical trial is to gain new scientific knowledge so that others may be better helped in the future.
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In a view of a remote observer, an object falling into a black hole is "hanging" at the horizon (slowly falling with a deceleration). Around this moment, the event horizon expands for some reason that is beyond the scope of this question (e.g. the black hole merges with another one or whatever). The new horizon is larger than the initial distance to the object. Logically, there are two possibilities of what can happen:
In the rest frame of an observer on the surface of the collapsing ball the event horizon first appears at the centre of the sphere and grows outwards towards the observer as the ball collapses. The event horizon passes the observer at the moment when the radius of the sphere is equal to its Schwarzschild radius.
So if you are prepared to accept the above as an acceptable model for the situation you describe then neither of the two options you present is correct. For the distant observer no event horizon ever forms and the the infalling observer takes an infinite time to pass the point $r = r_s$ where the horizon would form given infinite time.
I would guess you are thinking of an established black hole with a horizon at $r=r_s$, and what happens if this horizon grows (maybe because a load of mass is dumped into the black hole). The problem is that this is an unphysical situation as for the distant observer an event horizon takes infinite time to form. So the experiment could never be done. The calculation I've described (given the limitations of the OS metric) illustrates what would actually happen.
As it is usually defined, the event horizon of a black hole is the imaginary surface which nothing can escape to infinity from. You cannot actually identify the event horizon of a black hole without taking into account everything that will happen in the indefinite future. So if you add more mass to a black hole at time $t$, the position of the horizon at all times previous to $t$ gets recalculated, and expands slightly. This recalculation alters the position at times much less than $t$ infinitesimally, though; it changes it just enough to let a ray of light moving outward at the horizon escape at infinite time.
I don't think that all of these notions of frozen objects are useful in this situation. If the black hole is expanding, then the stack of apparent horizons forms a spacelike surface in the the overall spacetime, and, by construction, this stack of apparent horizons (and at least a neighborhood of their exterior) will be in the interior of the event horizon. No signal from inside the event horizon will ever reach something in the exterior of the event horizon. Asking what you "see" inside of an event horizon is moot.
The mechanism is called frame-dragging. Near the BH surface frame-dragging has enormous power. For instance, there is so-called ergosphere, which is the volume surrounding the event horizon, in which any body has to rotate in the same direction as the BH does. If the BH moves, so do all bodies close enough to the event horizon.
Throughout the Solstice Horizons event, you can collect event-exclusive field research tasks by spinning PokéStops in Pokémon Go. These tasks can be saved and completed after the event ends if you so choose.
Using density is invalid. As the radius of the event horizon for a given mass increases linearly, the volume of that radius increases as the cube and the density therefore decreases. Looking at it the other way, the density increases as the event horizon decreases.
You can calculate the size of the event horizon for any given mass. You just need to find the point at which the escape velocity exceeds the speed of light. We can use the speed of light in the formula for escape velocity and solve for the radius
I put together a spreadsheet with the numbers. I calculate that a 3.2 solar mass black hole would have a radius of 4.752km, meaning that a neutron star of 3.2 solar masses were to become a black hole it would have to shrink to 9.504km and have a density of 7.13E18 kg/m^3. Conversely the super-massive black hole at the center of our galaxy has an event horizon radius of about 6 billion km and a density of only 4.34E6 kg/m^3. A black hole the size of a proton would need 350 million metric tons and have a density of 1.5E56 kg/m^3.
Let's just go back to the time when a red supergiant goes supernova. When it goes supernova, its outer shells are blown off because of the explosion. What happens next depends on the mass of the remnant. If the mass is 1.4 to 3 times the mass of the sun, it becomes a neutron star. If it is 3 times the mass or greater it becomes a black hole. Neutron stars cannot have the event horizons of black holes because their supernova remnant was simply not massive enough.
It is said that neutron stars bend space/time so strongly that parts of the back are visible from the front! Of course a neutron star is essentially one very very large ball of neutrons with all the light elements on the surface. Some scientists now believe that simple neutron star collisions do not generate all heavy elements but the existence of elements heavier than iron is due to black hole-neutron star collisions. If so then they don't have an event horizon despite their enormous gravity because the matter is too spread out, whereas for a true black hole its all concentrated in one place.In fact it is believed that the escape velocity for a typical neutron star is around 1/3 to 1/2 the speed of light, still a large number and incidentally life may be possible on a planet orbiting a neutron star with radiation tolerance sufficient even in a bacterium like Deinococcus radiodurans as long as the planet's orbit kept it well away from the jets.A variant of this concept is when a neutron star hits a red supergiant briefly igniting helium fusion if the whole thing doesen't blow up first.
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Timothy Ferguson is the Associate Provost for Information Technology and Chief Information Officer at Northern Kentucky University (NKU). As CIO since 2007, Tim is responsible for the technology infrastructure, application management and development, help desk, telecommunications, network, mobile and web areas. Tim is also responsible for the Enterprise Systems Group that manages the SAP Administrative Systems at NKU. Tim recently was recognized by Computerworld with the Premier 100 IT Leader 2011 award. Tim also serves on the Dell Platinum Advisory Council. Finally, his team was recognized for forward thinking technology with the 2008 Best of Kentucky Technology Visionary Award.In addition to his role as CIO, Tim also leads the Center for Applied Informatics(CAI). CAI is a technology collaboration platform and is part of the new and exciting College of Informatics. CAI was established to work on technology innovations that will assist international companies in being competitive in a global technology driven marketplace. This innovative research includes leadership in mobile app development for iPhone, iPad, android and many other platforms. The CAI has produced award winning apps with great partnerships with organizations all over the world.
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