Gravitational Wave Astronomy is a fascinating discovery made a few years ago that changed the notions of modern physics. This presentation won the 3rd Prize in the SPIE student chapter's Oral Presetation in my college.

1. GRAVITATIONAL WAVE
ASTRONOMY
A NEW GATEWAY TO THE UNIVERSE
A Presentation by

2. What does this actually mean?

3. Gravity! Waves!
Newton Sir! Yup
slight stress on your
memories?
The Water Tub?
In your backyard?
Astronomy
Time to get
back to the
balcony!
Unravel the Mystery

4. Newton’s Universal Law of Gravity
It states that a particle attracts every other particle
in the universe using a force, but how actually the
force got implemented?
Why is the moon revolving
around the Earth instead of
striking it? Who asked the moon
to do so?
Kepler’s Laws : Check!
What about mercury changing
its orbit?

5. Shifting in the Mercury’s orbit

6. Call him in!
Einstein decided to answer the questions, and he inferred that
Newton’s Laws are valid only till inertial frame of reference is used.
The Theory of relativity.

7. The Space-TimeMesh
“Spacetime tells matter how to move,
And matter tells spacetime how to curve”
Einstein
Proposed

8. Space Time – The Trampoline model

9. Gravitational Waves-Illustration

10. Gravitational Waves? What is its use to us?
Existence of Black Holes
Its distance and
Characteristics
Dark Matter’s
Characteristics, its
mass and
complexities
Making The
universe a
Laboratory!
(we cannot
replicate stars here
:D)

11. Arewe in? Dothese waves exist? How canwe be so sure?
The Laser Interferometer

12. The Laser Interferometer Gravitational
Wave Observatory(LIGO)
HANFORD ,WASHINGTON

13. Demonstration of The working of The LIGO

14. September 2016. The D-day.
0.2 seconds = Centuries of Knowledge
Gravitational Waves formed by Binary Black holes
Waveforms matched predictions. And A new
window opened.

15. Why bother? Its up in the space!
The LIGO required Technological
advancements, a boon for our future.
• Seismic Isolation --- feed 1 billionth the energy of
normal ground vibration into our instruments .
• we have required and received the most precisely
polished mirrors.
• we have developed new suspension and control
systems to stabilize our optics.

16. Why bother at all?
We are a very small part of the Universe, but we are a
part of it nonetheless.
Understand Universe= Understand Yourselves.

17. Thank You
A Presentation by
Alka Prasad Aman Kumar Mishra Kaushik Ghosh