Faster than the Speed of Sound

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Faster than the Speed of Sound

• Ian McElwee
• 2005

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What is the Sound Barrier?

The sound barrier is not a faded out place, its
actually just a speed where you are going faster
than the speed sound travels.
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How fast is breaking the Sound Barrier?

• Normally sound travels around 700 mph. If a plane
  is going 1400 mph, then it is going mach 2.

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What are Shock Waves?

• Shock waves look like a hump, and are a change
  in pressure. When you are able to see them, they
  are carrying air or dust.

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More Shock waves
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What is a Sonic Boom?

• A sonic boom is just a sound made when shock
  waves (are also called wakes) build up and pass
  over you.

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What is a wake?

• A wake is a smaller wave made from any object
  going through a fluid (liquid or air).

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What does a sonic boom sound like?

• A sonic boom sounds like a boom, bang, or crack,
  depending on how the wakes move.

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What objects make a sonic boom?

• Some objects that make a sonic boom are whips,
  guns, and cannons.

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What is a condensation cloud?

• A condensation cloud looks, and acts like any
  cloud but is made by rapidly cooled air.

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More Condensation clouds
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Lift-Induced Clouds

• Lift-Induced clouds are made when water vapor is
  rapidly cooled when the plane is lifting off.

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Prandtl- Glauert Singularity

• These clouds are cone shaped and can be found
  near or at the speed of sound.

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Fastest Plane

• The Lockheed SR-71 Blackbird is more than 30
  years old, its max speed is 2200 mph, thats
  more than 3 times the speed of sound.

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Fastest Boat

• The Spirit of Australia, is owned by Ken Warby
  and its record is 317.6 mph. He is currently
  working on another fast boat.

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Fastest Car

• 50 years after Chuck Yegar broke the sound
  barrier, the ThrustSCC did. Its record speed is
  763.168 mph. This car is owned by Andy Green of
  London England.

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More Supersonic cars
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The X-1 Aircraft
On October 14 1947, Chuck Yegar flew the X-1, the
first plane to break the sound barrier. Today the
X-1 is in the Smithsonian.
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About the Author

• Hi Im Ian McElwee and Im 13. I lived in Mystic
  CT. for 4 years when I moved to Clemmons. I like
  the Simpsons, Disney, Muppets, and I LOVE
  ROLLERCOASTERS! My goal in life is to ride all
  the roller coasters I can.

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What the Author likes
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Bibliography

• Cramer, M.S. Sonic Boom, Sound Barrier, and
  Condensation Clouds. 1998. M.S Cramer. April 26,
  2005. lthttp//www.fluidmech.net/tutorials/sonic/so
  nicboom-intro.htmgt

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Bibliography

• What causes a sonic boom. 1998. HSW. 4/26/05.
  lthttp//science.howstuffworks.com/question73.htmgt
• NOVA. Faster than Sound. 1997. WGBH and PBS.
  4/26/05. lthttp//www.pbs.org/wgbh/nova/barrier/gt