Shock Waves

http://hypertextbook.com/physics/waves/shock/
When the speed source exceeds the speed of sound, the waves form a barrier that cannot be heard.
-Sound Barriers first came into the English language during WWII.
-The people flying the planes felt a strange pull when getting close to or exceeding the speed of -sound, because that's what a sonic boom is.
-When the wave exceeds speed of sound, the shape of the sound waves form a cone.
-the amplitude of the wave is called a 'shock wave.'
-How fast a wave goes depends on the length of amplitude.
-When a shock wave is as fast as the normal speed, then the shock wave dies and becomes just a sound wave.

Image link= http://www.madsci.org/posts/archives/1997-12/877005226.Ph.1.jpg

Glowing Tires- Stylish AND Safe!

http://www.inventionconnection.com/BOOTHS/booth448.html

A huge component of people getting into car wrecks is that they can't see what direction the tire is heading very clearly.
-This could be from rain or from the dark, or if one just doesn't feel like checking.
-Another thing that can go wrong is that the tires can wear down over time from different surfaces and can eventually pop, losing control of the car.
-this can't happen with Safety Glo (TM) Tire threads.
- they have fluorescent orange lights for helping a driver see in harsh conditions, and grooves on them so it's easier for tires to not slide as easily.
-they are not dependent on a source of light like lane lights
-these tire guards also have neon blue lights in the tires's steel belts to be extra-protecting.
-these blue neon lights grow bright on the tire, this means that the steel belts have been grinded away, making it easy to tell when it's time for a tire change to avoid a future accident.