The document summarizes key concepts from modern physics including relativity and general relativity. It discusses Einstein's special and general theories of relativity, including time dilation, length contraction, and mass-energy equivalence. It also covers general relativity topics such as gravitational waves, black holes, and applications to cosmology. The presentation aims to grow interest in these historical topics and unlock new understandings of the universe.

2. PRESENTED BY
TEAM VECTOR
MEMBERS
1.MD.Ashraful Islam Talukdar
2.MD.Jobayer Ahmed
3.MD.Sazzad Hussain
4.Iftear Alam Sakib
5.MD.Rakib Hossain The Absent Member
6.Fowjael Ahmed
7.Shariya Siddique
8.Monjur Bin Shams

3.  The Era of Modern Physics
 Basic ideas about relativity
 Short history

4.  Special Theory of relativity
 General theory Of relativity

5. •
Uniform Motion

6.  The First Law
 The Second Law

9.  Relativity of Time : Time Dilation
 Relativity of Length : Length Contraction
 Relativity of mass

10. Back after 50 Years!!! Too fast too furious!!!

11. The Correspondence Principle says that for large orbits
and for large energies, quantum calculations must agree
with classical calculations.
The principle was formulated by Niels Bohr in 1920

12. Started to work on it in 1907
 Finalized it after world war II
Conservation of mass and energy

14.  Discusses about singularity, black hole,
cosmology, time travel, string theory
 Astrophysical implications
 Basis of current cosmological models of
consistently expanding universe

15. • Published in 1915
• Superior to Newtonian gravity
• Combines the theoretical physics and astrophysics
• The golden age of General relativity

16. • An observer will see
a ball fall the same
way in a rocket (left)
as it does on Earth
(right), provided
that the acceleration
of the rocket is
equal to 9.8 m/s2
(the acceleration
due to gravity at the
surface of the
Earth).

17. Gravitational time dilation
and frequency shift
• Schematic
representation of the
gravitational redshift of
a light wave escaping
from the surface of a
massive body

18. Light deflection and
gravitational time delay
• Deflection of light
(sent out from the
location shown in
blue) near a compact
body (shown in gray)

19. Gravitational waves
• Gravitational
waves are 'ripples'
in the fabric of
space-time caused
by some of the
most violent and
energetic
processes in the
Universe
• These ripples would
travel at the speed of
light through the
Universe, carrying
with them
information about
their cataclysmic
origins

20.  Cosmology
 The Theory of
everything!!

21. • Life of a star
• Black hole
• Singularity

22. • Dark energy and dark matter
• Gravitational waves
• And so on…….

23. YES,IT’S POSSIBLE!!!
NO,IT’S NOT!!!
OH NO,IT’S REALLY POSSIBLE!!!
NO,NOT AGAIN!!!

24. String Theory
Einstein’s field equation
Gravitational lensing
The early stage of universe

25. o To grow the interest about this historical topic
o Overcoming the fear of the theory
o Unlocking a new door to universe to you
THE MIND GAME PARADOX
“ I LIE “