THE EXISTENCE OF BLACK HOLES

Tina AverySCI/151

May 6, 2013Professor: Sushrut Metha

EINSTEIN'S THEORY

☼ 1915 – Einstein’s Theory of Gravity predicted the possibility of black holes; however, no one believed they actually existed

☼ 1970 – Hawkins, was convinced black holes were real☼ Present (Today) – NASA space telescopes have discovered evidence supporting

black holes throughout the universe

http://joan-druett.blogspot.com/2010/12/kissing-and-albert-einstein.html

BLACK HOLES☼ Matter packed into a very

small area☼ Not even light can escape it

http://scienceblogs.com/startswithabang/2012/05/10/why-youll-never-escape-from-a/

MASS, GRAVITY, BLACK HOLES

☼ Mass☼ Quantity of matter in an object

☼ Gravity☼ Natural force of attraction exerted by a

celestial body☼ Black Holes

☼ Matter collapses to infinite density☼ As a result, the curvature of space-time

is extreme☼ Known as the event horizon

http://spaceplace.nasa.gov/black-hole-rescue/

WHAT WOULD HAPPEN TO OUR SOLAR SYSTEM IF THE SUN

COLLAPSED INTO A BLACK HOLE?☼ Things like meteors would still

get absorbed from time to time, but much less than they do now

☼ Rate of mass increase due to stuff falling in will be less than it is now

☼ Stuff will not be evaporating as fast as it does now

http://dujs.dartmouth.edu/news/public-gains-insight-on-black-holes/attachment/observing-a-black-hole-indirectly#.UYCM7sqKItU

WHAT IF THE SUN BECAME A BLACK HOLE?

☼ Only stars that weigh considerably more than the Sun end their lives as black holes

☼ Will stay roughly the way it is for another five billion years or so

☼ Very dark and very cold around Earth

http://tommyrotten.deviantart.com/art/Black-Hole-Sun-158936374

BLACK HOLE CANDIDATES

☼X-ray binary star☼W49B

http://centralastronomyclass.pbworks.com/w/page/15400553/Binary%20StarSystem/http://chandra.harvard.edu/photo/2013/w49b/

FALLING INTO A BLACK HOLE

☼ Force of gravity is so powerful you would need to travel at a speed faster than the speed of light to escape its pull

☼ No one outside would have view of you, whereas you would have view of him or her

☼ Gravitational pull would bend the light and distort ones last moments of vision

☼ Tidal force would be formed

http://ashscrapyard.wordpress.com/2012/01/20/they-pull-me-out-to-throw-me-back-deeper-into-the-hole/

SURVIVAL AROUND A BLACK HOLE

☼ Powerful, even light gets sucked in☼ Roomy

http://www.nasa.gov/centers/goddard/news/topstory/2007/overweight_hole.html

BLACK HOLES EXISTS BASED ON MY RESEARCH

☼ Yes

CONCLUSION

☼ Black holes are objects so dense that not even light can escape their gravity; since light nothing can travel faster than light, nothing can escape inside a black hole.

☼ A “tidal force” is created on the body when the pulling force increases as moving toward the center.

☼ If you were to fall into a black hole, no one outside would be able to see you; however you would have a view of them.

☼ Gravitational pull would bend the light and ones last moments of vision would be weird and distorted.

REFERENCES

http://ashscrapyard.wordpress.com/2012/01/20/they-pull-me-out-to-throw-me-back-deeper-into-the-hole/

Battersby, S. (2009). What would it look like to fall into a black hole?. Retrieved May 6, 2013, from http://www.newscientist.com/article/dn16885-what-would-it-look-like-to-fall-into-a-black-hole.html

Binary Stars. (n.d.). Retrieved May 6, 2013, from http://www.astro.cornell.edu/academics/courses/astro201/binstar.htm

http://centralastronomyclass.pbworks.com/w/page/15400553/Binary%20StarSystem/

Chandra X-ray Center. (2013). W49B: Rare Explosion May Have Created Our Galaxy's Youngest Black Hole. Retrieved May 6, 2013, from http://chandra.harvard.edu/photo/2013/w49b/ http://ashscrapyard.wordpress.com/2012/01/20/they-pull-me-out-to-throw-me-back-deeper-into-the-hole/

 

REFERENCES

http://dujs.dartmouth.edu/news/public-gains-insight-on-black-holes/attachment/observing-a-lack-hole-indirectly#.UYCM7sqKItU

Heckert, P. (2007). Falling into Black Holes: What would happen to Earth's orbit around the Sun, if the Sun were to suddenly collapse into a black hole?. Retrieved May 6, 2013, from http://suite101.com/article/falling-into-black-holes-a15034

Introduction to Black Holes. (n.d.). Retrieved May 6, 2013, from http://www.damtp.cam.ac.uk/research/gr/public/bh_intro.html

http://joan-druett.blogspot.com/2010/12/kissing-and-albert-einstein.html

Kalmbach Publishing Co.. (2013). No direct link between black holes and dark matter. Retrieved May 6, 2013, from http://www.astronomy.com/News-Observing/News/2011/01/No%20direct%20link%20between%20black%20holes%20and%20dark%20matter.aspx

REFERENCES

Mass-Energy Equivalence:. (n.d.). Retrieved May 6, 2013, from http://abyss.uoregon.edu/~js/ast123/lectures/lec09.html

NASA. (2013). Black Holes. Retrieved May 6, 2013, from http://science.nasa.gov/astrophysics/focus-areas/black-holes/

http://www.nasa.gov/centers/goddard/news/topstory/2007/overweight_hole.html

http://scienceblogs.com/startswithabang/2012/05/10/why-youll-never-escape-from-a/

http://spaceplace.nasa.gov/black-hole-rescue/Texas A & M UNiversity. (2010). Stephen Hawking Dedication, Lecture Inspires. Retrieved May 6, 2013, from http://tamunews.tamu.edu/stephen-hawking-dedication-lecture-inspires/ 

http://tommyrotten.deviantart.com/art/Black-Hole-Sun-158936374