Informative Speech: What Are Black Holes?

1. Hello everyone, today I will be talking about black holes. This is a very interesting topic because we are progressively learning more about them but so far we have a limited amount of facts. Today we think we understand how black holes behave but we may come to realize, there is more to it.
2. Now let us explore what a black hole actually is. A black hole, is simply a hole in space that has a very large gravitational pull, this is why you cannot see light, and anything that enters a black hole cannot escape. A black hole is technically invisible.
3. A black hole is created when a star collapses. Star’s work with a balance of radiation and gravity. The star will begin consuming its resources and once they are diminished (and a star is large …show more content…
Think of the event horizon as a boat about to fall down a waterfall. After a point in time, the current would be too strong for the boat to paddle away and no matter how much effort is being put, the boat will fall off the waterfall.
6. If an object were to enter into the black hole, from an observer’s view, you would see them slow down, freeze in time, then turn red and disappear. This is mainly because the time around black holes changes.
7. From the objects perspective, it would be different. Everything would speed up and time would appear to be moving faster. It would seem like you are looking into the future, in a sense. This is due to the curvature of space and time around the black hole.
8. Another part of the black hole is the Accretion Disk. This Accretion disk is dust and particles that haven’t been pulled into the black hole but manage to stay in orbit just like a star and orbiting planets.
9. Actually, if you switched our sun with an equally massive black hole, the gravity effecting our solar system would remain constant. In the centre of the Milky Way and almost every galaxy is a supermassive black hole
10. In the centre of the Milky Way there is a Super Massive Black Hole located in Sagittarius A which is about 26,000 light years away. This Black Hole is estimated to be around the mass of 4 million

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