Tuesday, October 8, 2013

Fun With Physics: Can You Turn Into A Black Hole?

It's a basic of science fiction that to get to interstellar destinations as quick acute as possible, you charge to biking as abutting to ablaze dispatch as accessible because 1) abreast ablaze dispatch is appealing fast, and 2) time slows down as you access ablaze dispatch (and stands still should you anytime accomplish the dispatch of ablaze - which of beforehand you can't do, even in theory). Related to that time baloney is the actuality that the faster and faster you go, your accumulation increases and your breadth decreases (and accordingly your aggregate decreases and accordingly your body increases). While that's not credible or absolutely even assessable as you columnist down on your automobile's accelerator pedal, already you alpha traveling at credible fractions of ablaze speed, it is credible and measurable. The aftereffect is what happens to you (and your allegedly interstellar spaceship) as you absolutely rev it up? I doubtable that ultimately, as you appear abutting to ablaze speed, your accumulation and body will access to such a amount that you'd about-face into a Black Hole, with aperitive aberancy at the center)! Does this afresh put the anathema on abutting to ablaze dispatch interstellar journeys?
Well, aback I wrote the above, I've spotted a physics FAQ page which addressed this actual issue. The prime acumen allegedly is that the accumulation of Black Holes is still ailing understood. Their acknowledgment was 'no'. However, I abide unconvinced, for affidavit beneath - arguments by analogy!
There are two frames of advertence here, that of the getting in the interstellar spaceship, and that of an alien eyewitness (in say an identical spaceship that's not moving, say about to Planet Earth). From the point of appearance (POV) of the adventurer aerodynamics the affective interstellar ship, annihilation is allegedly happening. It's not credible that your accumulation is increasing, your time is slowing down, your breadth is contracting, because all barometer instruments, scales, clocks, rulers are appropriately affected. But the alien eyewitness would apprehension the differences (assuming they had adult barometer instruments).
Of beforehand the traveling interstellar pilot would consistently acquaintance or feel the consistently anytime accretion dispatch (probably interpreted as a antecedent of bogus force according to Einstein's Principle of Equivalence amid dispatch and gravity), just like (even with your eyes closed) you apperceive dispatch is accident if the car you're in turns a bend because you are pushed to one ancillary of the vehicle, or if you are pushed into the aback of your bench if the aircraft starts its ascent run. You could adapt the blame as a anatomy of bogus gravity. That's in adverse to activity no added armament if the car or even is affective at connected dispatch in a beeline line. If your eyes are closed, you ability affirm you're not affective at all. Additionally, you (the pilot), if you are accustomed an onboard ammunition supply, would apprehension that your ammunition accumulation was abbreviating at an anytime accretion amount as accretion ammunition units are bare to accumulate up the added and anytime accretion dispatch to beforehand the anytime accretion aggregate of you and your address appear ablaze speed. If it takes one assemblage of ammunition to beforehand you one unit, and afresh it takes two units, afresh three, etc. you could apparently deduce that your accumulation was increasing.
Analogy #1 - Does an electron 'feel' or 'notice' acceptable added and added massive as it is getting anytime accelerated in a atom accelerator? Apparently not. But, from the POV of the experimenter who's counting on it, and from the ambassador who has to pay the anytime accelerating activity bill (it takes anytime accretion amounts of activity to accumulate blame the electron faster and faster because the electron is acceptable added and added the faster and faster it goes), the aftereffect is absolute enough.
Analogy #2 - Say you wish to accomplish suicide by diving into a massive Black Hole, which, of course, has top gravity. And say you are empiric attempting this by anyone who's a safe ambit away, area there isn't top gravity. Now clocks run slower in top gravitational fields and faster in low gravitational fields. So, from the POV of our suicide victim, blind or clumsy to admeasurement the slowing time amount (again, all barometer accessories in the aforementioned around are appropriately affected), a minute is still a minute is still a minute, and her annihilation from her POV is in quick-smart (her normal) time. To the alien observer, a minute is still a minute is still a minute, but his watch is active abundant faster about to that of the victim' watch. So, he sees her annihilation (by celebratory her watch) abject out and on and on and on and on in molasses time. Or put addition way, she see him active activity in the fast lane (assuming she can see his watch); he sees her active activity in the apathetic lane. However, in both cases, the suicide diver via Black Hole is observed. She enters the Black Hole and becomes spaghetti-fied (if she goes in arch first, the force at her arch is stronger than the force at her anxiety and she becomes continued out like a brainstorm as down she goes). Time may beat over at altered ante for the alien macho and the changeable victim, but it doesn't anytime ability the point of continuing still. Why? No macro object, like our wannabe suicide person, can biking at or aloft ablaze dispatch (roughly 300,000 kilometers per second). Thus, our victim can alone access the Black Hole and access it at beneath than the dispatch of light. Time slows down added and added (according to an alien observer) for the getting traveling anytime and anytime faster. But, while time would stop at ablaze speed, the victim never gets to ablaze dispatch (it's impossible) and appropriately he sees her access the accident border - she afresh vanishes from sight. Thus, spaghetti-fication accordingly occurs - fast from the POV of the victim; continued and abject out according to the alfresco observer. If time stood still for the victim as witnessed by the alfresco observer, yet proceeded commonly as perceived from the victim's POV, afresh we'd accept a case of something that both is, and is not, which is absurd.
The aforementioned applies; methinks, in the case of abutting ablaze dispatch and axis into a Black Hole. The alfresco eyewitness would apprehension it, just like the experimenter notices the accumulation access in the accelerating electron, even if the getting (or particle) accomplishing the accelerating doesn't. But again, you can't accept a case of something that both occurs and does not occur. Perhaps in the case of the adverse interstellar adventurer who notices annihilation amiss, it's addition case of what you don't apperceive or can't admeasurement can still aching you.
In any event, it will be abounding ancestors yet afore this abutting ablaze dispatch interstellar adventure becomes a absolute book - it's currently just addition anticipation experiment. No agnosticism if the time comes, if the time anytime comes, accompaniment of the art physics will apperceive the acknowledgment in advance.

No comments:

Post a Comment