What Happens When You Travel Faster Than Sound?

Sound waves are like ripples in a pond that radiate around the object. An aeroplane travelling at sub-sonic speed will be travelling behind the sound that it has emitted. When the aeroplane reaches the exact speed of sound, the sound it is producing will accompany it on its journey. This can be very dangerous. Why?
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Can We Live Without GPS?

While it was the military who developed this technology for their internal use, it soon became available for all and became extremely popular as well. Another reason of its popularity was perhaps the low cost which is associated with it, be it the installation cost or the running cost. Now, GPRS devices are used in
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Representation of a Vector

The length of the arrow on a certain scale represents the magnitude of the vector and arrow-head, and gives the direction of the vector. Let us consider an example. Suppose an aeroplane flies towards east with a velocity of 500 km / h. To represent the velocity of this aeroplane we first indicate north south
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What Makes an Aeroplane Fly?

One thing that you really need to understand before you can build a toy plane that actually flies is what it is that makes planes fly in the first place. Luckily, with a little explanation, the basic scientific principles of plane flight aren’t too difficult to understand. The key to flight, understandably, is the wings.
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LytHarvest Compact Leg Rig, Military Utility Gear Multi Purpose Drop Leg Molle Pouch Platform Rig with Detachable Mag Pouch

Price: (as of – Details) Molle Tactical Drop Leg Platform Leg Rig with Attached Magazine Pouch and Single Mag Pouch Material: 1000D nylon material Product Size: Length: 8.5inches Height: 7 inches Product weight: 15.8ounces This compact leg rig is set up for quick source of role specific gear. Perfect for a low profile setup for
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AIRSOFTPEAK Tactical Pouch Molle Christmas Stocking Bag Design Military Ammo Bullet EDC Pouch Dump Drop Magazine Storage Bag

Price: (as of – Details) Wanna Have Something Different in This Christmas? Vexed for The Gifts for Some Special Person You Care? Order Our Christmas Stocking Bag in Tactical Molle Design, Which Will Not Let You Down. Specifications: Material: Nylon Weight : 7.5oz Size: 8″(W) x 16″(L) Color: Black, Green, Tan Type : Military Storage
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Concealment Tactical Magazine IWB Pouch – by Houston- ECO Leather and Multi Use Soft Pouch for Pistol Inside The Waistband Small, Medium and Large Single and Double Stack .380 .9mm .40 and .45 Cal

Price: (as of – Details) ECO LEATHER Concealment Magazine Main Characteristics:QUICK AND EASY DRAW: The open top design enables quick draws and reloads the magazine for the range or daily carry, field or competitionCONCEALED CARRY MAG POUCH AND MULTIUSE HOLSTER: The IWB concealment mag pouch with strong and durable metal clip and support keeps it
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