Rockets are containers that use pressurized gas to provide thrust in one direction, propelling the rocket in the opposite direction. They carry their own supply of oxygen, allowing them to operate in the vacuum of space unlike airplanes. The idea of rockets came from observing how air flowing over paper wings could create lift. Rockets have been used since ancient China, when they were fueled by gunpowder. Modern rocketry was pioneered by Robert Goddard in the 1920s. For a rocket to launch, the thrust must exceed the force of gravity pulling it down.

1. • Name- Mantra Vora
• En. No. – 12102080501042
• Branch – Information
Technology
• Subject- Creativity, Problem
Solving and Innovation.
• Topic- Invention of Rockets

2. 1.WHAT ARE ROCKETS?
• A rocket is a container
enclosing a gas under
pressure.
• A small opening at one
end of the container
allows the gas to
escape in one direction.
That provides thrust
that propels the rocket
in the opposite
direction.

4. 2. Airplanes versus Rockets
a rocket carries its own supply of oxygen for combustion. A jet
engine requires oxygen from the atmosphere for combustion, and
so cannot operate in the vacuum of space

5. 3.WHERE DID THE IDEA CAME FROM?
• Moving air created
low pressure over
the paper and the
higher pressure
under the paper
(or wing) lifted it!
• The Bernoulli
Effect!

6. 4. A BRIEF HISTORY OF ROCKETRY
• Sometime in 1000s Chinese had rockets fueled by
gunpowder.
• In 1812 at Fort McHenry in Baltimore, Francis Scott
Key wrote a poem that included the phrase “ the

7. 4.1 ANCIENT AND MODERN WARFARE

8. 4.2 ROCKET POWERED FLYING CHAIR

9. 4.3 CONGREVE ROCKETS
• British and American
war in 1812.
• Produced Red Glares.
• The Star Spangled
Banner by Francis
ScottKey,the National
Anthem of America

10. 5.MODERN USES OF ROCKETRY

11. 6.U.S. INVENTOR OF MODERN ROCKETRY
• Dr. Robert Goddard
launched the world's
first liquid-fueled
rocket
on March 16, 1926.
• His work is as
important
as the Wright
Brothers
flight experiments.

12. 7.NEWTON’S DISCOVERIES:
GRAVITY AND LAWS OF MOTION
• Sir Isaac Newton’s three Laws of Motion
helped very much in the field of Rocketry

13. 8. WHAT DOES GRAVITY HAVE TO DO WITH
ROCKETS?
The force of thrust pushing rocket upwards is greater than the weight
force due to gravity downwards. This unbalanced force causes a
rocket to accelerate upwards.

14. 9. INTERESTING FACTS ABOUT
ROCKETS
1. Most rockets are launched from the ground because the
rocket exhaust thrust is bigger and stronger than the
rocket’s weight on Earth.
2. It takes a NASA space shuttle 8-1/2 minutes to get to
space.
3. The smallest space rocket stands 33 feet tall.
4. Rockets work more efficiently in space than in our
atmosphere.