Black holes are regions of space where gravity is so strong that nothing, not even light, can escape. They can form when large stars collapse at the end of their life cycles, compressing their mass into a tiny space. Black holes warp spacetime so severely that they can pull objects inward and may potentially serve as portals to other universes or allow for time travel according to some theories. Scientists study black holes by observing the effects of their strong gravitational forces, such as emitting x-rays and warping of light.

1. BLACK HOLE
BY: MALIHAFIRDOUS

2. CONTENTS:
 WHATARE BLACKHOLES?
 SIZE OF BLACK HOLE
 CREATIONOF BLACKHOLE
 PARTSOF BLACKHOLE
 HOWTO KNOWWHERETHEYARE?
 WHATHAPPENS IF YOUFALL INTOA BLACKHOLE?
 CHANCESTO LIVEIF YOU FALLINTOA BLACKHOLE
 Facts about black hole
 Journeyto black hole
 Gravitational force of a black hole
 Black holesand time travel
 Einstein’sprediction and coinage of term‘black hole’
 REFERENCES
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3. (3)
what are black holes?
volumes of space where
gravity is extreme enough
to prevent the escape of
even the fastest moving
particles.[1]
Great amount of matter
packed in a very small
area.[2]
Evolutionary
end points of
stars.[3]

4. (4)
SIZE OF BLACKHOLE[4]
It weighs about approx. 10 times mass of sun
It weighs about as much as a star
Its size and mass are independent of rotation

5. (5)
CREATION OF BLACK HOLES

6. (6)
s PARTSOF BLACK HOLE

7. (7)
HOWTO KNOWWHERETHEYARE IF YOUCAN’T SEE THEM?[5]
X-Rays which are sent off into space strikes black
hole telling us where it is
Binary X-Rays are placed to find strong black holes
Random variations of emitting X-Rays tells us
presence of black hole

8. (8)
WHAT HAPPENS IF YOU FALL INTO A BLACK HOLE?[6]
You would have to travel faster than the speed of light to escape
Pulling force would increase as You move toward the center creating a tidal
force on your body
Gravitational pull would bend the light weirdly and distort your
last moments of vision
No one would be able to see you but you would be able to see them

9. (9)
CHANCES TO LIVE IF YOU FALL INTOA BLACK HOLE
chances
LIVE DIE

10. (10)
FACTS ABOUT BLACK HOLE[7]
 You cannot directly see a black hole
 Dying stars create stellar black hole
 It comes in wide ranges of size
 First black hole was discovered when X-Rays astronomy was
used
 Nearest black hole to planet Earth is only 1600 light years away
 They does not emit radiation on their own[8]

11. (11)
JOURNEY TO BLACK HOLE[9]
NASA created a 3-D stimulation of emerging black holes. This was the
largest astrophysical calculation ever performed on a NASA super
c computer.

12. (12)
GRAVITATIONALFORCEOFABLACKHOLE

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BLACKHOLES AND TIME TRAVEL[10]
 Dr Michio Kaku, a theoretical physicist has now revealed black holes might one day
serve as portals through time and space.
 Dr Kaku said: “There’s actually a possibility that on the other side of a black hole
there’s perhaps another universe.
 “Now we should point out no one’s ever done this – no one’s ever shot a rocket into
a black hole – what falls in never comes out, so we’ll never know what’s on the
other side of a black hole.
 “But if you just do the math, if you just take Einstein’s equations and follow a rock
through a black hole, it lands on a parallel universe. So it’s a gateway, a portal to
the other side of a black hole.

14. (14)
EINSTEIN’S PREDCTION ANDCOINAGE OF TERM…………
………………………….“BLACK HOLE”……………………………….

15. (15)
REFERENCES
 [1] https://www.sciencealert.com/black-holes
 [2] https://www.slideshare.net/javierlujanlopez3/black-holes-42405202
 [3] https://www.slideshare.net/nsihag/black-holes-15021092
 [4] https://www.slideshare.net/nsihag/black-holes-15021092
 [5] https://www.slideshare.net/nsihag/black-holes-15021092
 [6] https://www.slideshare.net/nsihag/black-holes-15021092
 [7] https://www.universetoday.com/46687/black-hole-facts/
 [8] https://space-facts.com/black-holes/
 [9] https://www.slideshare.net/nsihag/black-holes-15021092
 [10] https://www.express.co.uk/news/science/1080190/Time-travel-real-time-traveller-time-machine-black-hole-michio-
kaku