/sci/ - Science & Math

>>7091498
>How does stuff fall into black hole?
It can't. The distance from any point outside of the event horizon of a black hole to the event horizon is infinite. An external observer would never see anything reach the event horizon, hence, nothing would ever fall in.

In pic related, the hole is something like Gabriel's Trumpet. It goes all the way down and never touches the event horizon at any finite depth or at any finite distance along the curve. That's a slice of what the space is supposed to be like, around the theoretical construct we call a black hole. The distance along any path from outside the event horizon to the event horizon is infinite.

Also: black holes don't really exist. Not as described by GR anyway. There appear to be things superficially similar to black holes, but when we get a close look at them, there will probably be no event horizon. Just a very dense object.

So the current theory on black holes based on Stephen Hawking's research is that once you reach the even horizon, time stops. Time is relative, and a measurement. So if upon reaching the event horizon time stops, wouldn't that mean that time is just a measurement of what we can perceive of this unknown force that I believe governs time as we understand it? If time stops, then the entire force governing time would have to come to a halt. If you reach the even horizon and time only stops for you, then you are just frozen, not "paused" really. Anyway, give me feedback and try not to make me feel too dumb. Been bugging me all day.

How to pass through the "Singularity" of a Black Hole?.. Also, It would be possible?..

I have heard about Big Bang Theories, and this came to my mind so far:

Approximately 13.7 billion years ago, the entirety of our universe was compressed into the confines of an atomic nucleus. Known as a singularity, this is the moment before creation when space and time did not exist. According to the prevailing cosmological models that explain our universe, an ineffable explosion, trillions of degrees in temperature on any measurement scale, that was infinitely dense, created not only fundamental subatomic particles and thus matter and energy but space and time itself. Cosmology theorists combined with the observations of their astronomy colleagues have been able to reconstruct the primordial chronology of events known as the big bang.

This singularity is sometimes called "the Big Bang", but the term can also refer to the early hot, dense phase itself, which can be considered the "birth" of our Universe.

"Then, finally.. this could be a Paradox, isn't it?.. This Singularity COULD have come from an alternate universe and made our own universe vice versa."

ITT:Black hole theory.

The Black hole has always been mysterious and un-known to humans. Scientists have theorized solutions to black holes and why they exist.

Recently I have discovered in a lecture I believe from Dr. Michio Kaku, that there are Massive Black holes, in the center of every galaxy. Dormant and not feeding on gasses the massive black hole accelerates stars in its gravitational pull. In another lecture I have heard that if a item or mass was thrown into a Black hole, it would be transformed into a mathematical code to which in theory can reproduce the exact item or mass.

In another lecture with another theory, some believe there is a gate-way to a Multi-universe to which all physics rules do not apply, and all universes co-exist in the multi-universe.

My radical theory is if there are dormant Massive Black holes in the middle of every galaxy, can this Black hole hold the mathematical equations and information for that entire galaxy, and passing through this Massive Black hole, in theory you can be teleported to the Multi-universe to which all universes co-exist.

Ideas, opinions, suggestions, prove me wrong/right.

We may not encounter time travelers yet possibly because we exist in a current region of spacetime that does not permit time travel. Maybe sometime in the future it will have warped in a way to allow such visitors

Or maybe time travel will have a limit as to how far back one can travel. This would mean the date we should start seeing a time traveler is dependent on the date the time traveling mechanism is first initiated.

This is, of course, pure conjecture and in no way based on anything more than reasonable deduction and assumption. General relatively allows for time travel with the application of faster than light travel, black holes, and cosmic strings but are only speculative at this point.

Does /sci/ believe in black holes???

Where does black holes lead?

if the universe is full of super massive black holes, how is the universe still expanding? isn't this a violation of 'energy cannot be created or destroyed' ?

When I jump into the event horizon of a black hole, do I continuously accelerate towards the center of the black hole, possibly surpassing the speed of light on my way there? (If the Black Hole was big enough)

Recommend me some good books to read, /sci/

I've read Cosmos by Carl Sagan, but I'd like something a bit more... formulas/numbers, if you get what I'm saying.

Do blackholes (if they exist) have angles?, or do they act like the 2d textures?

>>1792770

Hawking Radiation, from what I understand tells about what falls in the black hole after it becomes a black hole but not the black hole itself. It is purely theoretical but nothing says it shouldn't exist.

It is stated that there are two opposing particles that come into existence everywhere in the universe (one being the anti of the other) but annihilate so soon after manifesting that they cannot be considered part of reality. However, the ones that occur near the event horizon may have one of the pair fall into the black hole without the other, allowing for one of the particles to basically appear as if it came from no where. This subtle but constant small form of radiation is what is known as Hawking Radiation, but none has been discovered as of yet. It is just predicted as a possible way of seeing black holes.

Also, gravitons haven't been discovered either but if they do exist they would not be radiating out of objects like photons do. Instead (correct me on this one if I'm wrong) it would seem like they would stretch out across the universe and pull among each other to create a vast three dimensional web or space-time fabric. At least, that's what I imagine a fundamental particle of the weak force of Gravity would be like.

Time to play Idiocracy.

Science is Evil and only interested in profiteering. Therefore we need to devise a plan - put them at the bottom of the food chain, the bottom of life so we essentialy look down on there unitelligence, and slowy reap the evil out of the planet. It's best to start this now, before science destroys every tree, pollutes every animal and each square mile of water. We need to stand up now, before these literal queers destroy God, when the answers are already there.

www.scienceforums.net <-
Start here, spam the forums with Christianity.
Keep the attacks on /sci/, every day you open someones eyes to the truth - eventually there will be more of us.

Force the 4th reich. The music industry will save us.

http://yourfreedom.hmg.gov.uk/restoring-civil-liberties/reduce-disorder-by-repealing-the-3rd-law-of-
thermodynamics

If for an outsider anything takes an infinite amount of time to get inside a black hole, should it be possible for one to form in the first place since: If we take a collapsing star one atomic mass from being a black hole, then surely any matter would take an incredible amount of time to fall in the last metre. But when it get closer the time would travel even slower...

Black holes can't be seen, but we can see their affects and they're considered a fact.

God can't be seen, but we can see God's affects and they're considered a myth.

Explain this paradox to me.

Does /sci/ know of a good physics resource web-page?
I've been using http://tutorial.math.lamar.edu/ to review some Calculus-related topics. Shit is cash.