Shock waves were discovered more than a century ago, yet there is still much we do not understand about them. Shock waves are a defined as compression waves – a type of high-speed wave which passes tsunami-like through solids, liquids and gases inducing a sudden rise, then an immediate drop in pressure.

Shock waves are created in many ways both natural and man made, they are responsible for the crash of thunder, as well as the bang of a gunshot, the boom of fireworks, or the blast from a chemical or nuclear explosion.

In an effort to better understand shock waves, a new technology has been developed which combines high-speed videography equipment with classical visualization methods to capture these transparent shock waves like never before.

Shockwaves were first observed by Robert Hooke over 3 centuries ago, but being before his time, Hooke’s findings were left unused until the mid-19th century when a German scientist called August Toepler rediscovered them.

Toepler used Hooke’s method to observe the spherical waves in the air caused by loud spark discharges; he thought he was seeing sound when he was actually seeing shockwaves. He named this technique the Schlieren method (meaning streaks) and although the technology has progresses significantly, the name remains the same.

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There is no doubt about it, guided ammunitions are changing the way we fight wars. In the days of the Vietnam War, guided ammunitions had already been developed however dumb or iron bombs were still largely in use. These days many munitions have guidance systems ranging from lasers to GPS, some of these systems are even being fitted to unmanned vehicles to enable a totally autonomous attack.

Dumb bombs are what most people imagine when they think of a bomb. There is no way to control the bomb once it has been deployed, they simply fall to the ground and explode, hence the name. Needless to say hitting a target with a dumb bomb is an extremely difficult task and innocent bystanders are often caught up in the carpet bombing technique which is employed.Smart bombs are designed to guide themselves to the target. The concept of this smart weapon is certainly not new. First developed back in 1943 by the Germans, the technology would go through stages of radio-controlled and laser-guided developments before being used on a large scale. The first large-scale use of smart weapons came in 1991 during Operation Desert Storm when they were used by coalition forces against Iraq.

More Information On The Air Force’s Newest Smart bomb Plus Two Videos After The Jump.

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This intricate - perhaps impractical - five shot revolver apparently does work.

Produced in the 1800, the (probably French made) ring pistol is a perfect example of what was known as “la petite protectors”. The ring pistol once was one of the smallest killing devices ever developed.There doesn’t seem to be much info around regarding the practicality of the finger mounted firearm however, after a long search it appears some believe that,

“If it were fired, the smoke, flames, and noise would be considerable. The muzzle velocity would probably be so low that the powder burn would be worse than the bullet”

So may be it doesn’t classify as the most efficient killing device but considering when it was made and the craftsmanship it took to make, it certainly is an exceptional one off antique firearm. Hat’s off to the unknown creator.

More Pictures After The Jump

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The Pentagon announced last Thursday that a Navy warship has been tasked with shooting down a failing United States spy satellite that is expected to hit Earth within weeks.

In a joint news conference, NASA administrator Michael Griffin and Gen. James Cartwright, the No. 2 officer at the Defense Department, told reporters that an SM-3 missile – originally designed to inbound ballistic missiles - will be fired from a Navy cruiser during the next month to obliterate the inbound spacecraft.

The idea is to break apart the satellite to rid it of toxic fuels which are stored in its tank.The USS Shiloh will be one of three warships that will use the system to target the defunct satellite. Deputy National Security Adviser James Jeffrey, briefing reporters at the Pentagon, did not say when the attempted interception would be conducted, but the satellite is expected to hit Earth somewhere in the Pacific Ocean during the first week of March.

Although Cartwright would not comment on the odds of success it is true that several successful anti-ballistic mile tests have been already conducted from the cruisers, most frequently from the USS Shiloh, but no test has the urgency or high profile as the impending satellite shoot-down.

The Standard Missile 3 (SM-3) can target an object as high as 310 miles when fired vertically. After the third stage of the rocket is spent, the kill vehicle finds the satellite with infrared sensors and then steers towards the target.

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Check out the video and then take a closer at the pics below. It is very amazing how this cop was able to survive a barrage of bullets. This happened out at the southern edge of Plano, Texas.

Here are the pictures of the police car back at the lab for inspection

In late September 2007, Boeing successfully tested a 1kw solid state laser weapon mounted on a converted Avenger anti aircraft vehicle in Redstone Arsenal, Alabama. The Avengers laser was able to successfully destroy several unexploded mortar shells and two unmanned aerial vehicles, both of which were on the ground.

Until recently, military lasers were extremely big. Powerful lasers such as Boeing’s Airborne Laser (ABL) developed in order to destroy ballistic missiles in flight from a distance of hundreds of miles were so big they required a fully modified Boeing 747-400F to house the system. Thanks to new developments in solid state laser technology, the Avenger system is more compact than any previous military lasers.

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The AC-130 gunship is a heavily-armed ground attack airplane. The basic airframe is manufactured by Lockheed, and Boeing is responsible for the conversion into a gunship and for aircraft support. It is a variant of the C-130 Hercules transport plane. The AC-130 Gunship II superseded the AC-47 Gunship I in Vietnam.

Well, the Spectre crew members have never been this HOT!

Mufasta Ali and Bin Ladin Better Watch Their Tails!

Vanessa Dobos is a gunner on a USAF AC-130 Gunship. She has seen action in Iraq and Afghanistan. She likes long walks on the beach, men who are not afraid to cry and puppies.

Her dislikes include feed tray stoppages, tracer flareout of her NVGs and premature fixed-wing strikes scattering her high-value targets.

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Since the Cold War the U.S Missile Command and the U.S Air Force have continually focused their efforts on designing an Airborne Laser Weapon. Whilst this idea may still seem like science fiction, testing for this ground breaking technology has already begun.

A powerful Chemical Oxygen Iodine Laser (COIL) has been mounted in a turret-like array on the nose of specially modified Boeing 747-400 air freighters. The Airborne System’s (ABL) primary mission will be to locate and shoot down enemy ballistic missiles whilst still in the launch stage.

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A three letter abbreviation that’s becoming synonymous with the Iraq War is IDE. Improvised explosive device (IED) is a bomb constructed and deployed in ways other than in conventional military action.The Navy recently pressed for new out-of-the-box technologies that could predict where IED bombs will explode, now the Marines have just ordered 1000 mine resistant, ambush-protected vehicle (MRAP’s) to further save lives on the streets of Iraq.

The Cougar (known in the United Kingdom as “Tempest”, and previously it seems in the US as “Lion” and “Typhoon”), is designed to withstand a 30-pound blast of TNT to either the front or rear axles as well as a 15-pound blast to the center portion of the vehicle. The Cougar Hardened Engineer Vehicle, until 2002 marketed as the Lion, can be configured to complete a wide variety of mission requirements. The new HEV can serve as a mine-proof troop transport vehicle, a law enforcement special response vehicle, a weapons platform, or an escort protection vehicle.

The $490 million contract, which will be the biggest order for MRAP’s so far, calls for 300 Cougar 4 x 4s and 700 of the larger, six-wheeled Cougar 6 x 6s. Whilst no vehicle is completely safe from an IDE the Cougar is better armored than the Humvee and features a V-shaped undercarriage that partially redirects explosive blasts around the vehicle. The Marines field-tested various mine-resistant vehicles before settling on the Cougar. In 2006 this Cougar RG-31 suffered a direct IED hit, but none of the crew were killed.

The Cougar 4 x 4 and 6 x 6 models both have 330-hp diesels, top speeds of 65 mph, a 600-mile range, and seating for 10. The 6 x 6 can haul 14,000 pounds, nearly triple the 4 x 4 max load. Cougar, developed and produced by Force Protection Inc. is a multi-purpose, 12 ton mine protected armored patrol vehicle. The design uses a monocoque, bulletproof and blast-proof capsule fitted with transparent armored glass, which protects the driver and crew from small arms fire, mine blasts and IED.

Typical roles for the vehicle are armored, mine protected troop transport for security, stability and peacekeeping missions, protected weapons platform, law enforcement special response vehicle, counter IED an EOD / Range Clearance vehicle. The vehicle can accommodate 10 passengers in a 4×4 configuration and 16 passengers in a 6×6 configuration. Cougar was selected to serve with the US Marine Corps as a Hardened Engineer Vehicle (HEV), to support engineer mine clearing and explosive ordnance disposal teams deployed in Iraq.

As of June 2006, there are more than 130 Cougars and Buffalos in Afghanistan and Iraq. Since their deployment to Iraq in 2003 the Cougar and Buffalo vehicles employed with explosive ordnance disposal teams and engineers units have taken about 1,000 IED hits without a loss of life, said Wayne Phillips, a company vice president in charge of Marine Corps programs. The vehicle has proven to be superior to less protected vehicles, such as the up-armored Humvee or armored trucks.

Bigger plans to order more MRAP’s are still caught up in political controversy however the Pentagon hopes to eventually deploy a total of 7774 MRAPs at the total cost of 8.4 billion dollars. A small price to pay for the lives of our Troops on the streets of Iraq.

Defense Technology on the H Series Cougar Armord Truck

The threat of improvised explosive devices (IEDs) or street bombs is ever growing, especially on the streets of Iraq and detecting them has always been a problem. Now the Navy is trying to take bomb disposal to the next level by requesting proposals and offering grants for new technologies that can predict where bombs will actually be placed.

The office of Naval Research says it is looking for theoretical and technical approaches to:

• Permit the prediction of bomb emplacements
• Identify and localize bomb makers, storage nodes, safe zones and caches
• Identify or predict changing or emerging threat tactics.
• Track components, practices and procedures used in fabrication and assembly.

The project will possibly use any combination of statistical, logical, chemical, and psychological data to predict where the next bomb will be placed and is all part of a broader push to develop “fundamentally new theories, data, concepts, and principles that could one day help U.S. forces detect, neutralize, and guard themselves against improvised bombs.

Other ideas include “advanced sensor networks” to automatically detect bomb-placing, with “minimal” human involvement, technologies to “quickly and remotely destroy explosive devices without necessarily having to detect them” and methods to identify the “behavioral [and] physiological” signatures of the bombs’ “human initiators and observers.”

The closing date for proposals is 20th of July with grants being given sometime before Halloween, perhaps it won’t be too long before this technology is more than just an idea.

American soldiers have been using laser scopes for a long time, to make their shots more accurate. But what if the bullets themselves were steered by lasers, and able to turn on a dime? That’s the idea behind a new, $7.5 million Darpa initiative to be a “laser-guided bullet” recently unclassified. DARPA have justified plans to begin funding research into designing a laser guided bullet, the 7.5 million dollar initiative could see science fiction become a reality with bullets actually able to change trajectory in mid-flight. The hope with this technology is that the compact targeting systems embedded in the projectiles will enable,

Overmatching fire power and significantly improve first site effectiveness in engaging distant enemy forces.

The goal appears to be to “enable low-cost, high performance guided projectiles” that take advantage of “guidance and targeting systems.” While the idea of a laser-guided bullet conjures images of soldiers marching across fields, spraying ammo that never misses, the report mentions that the technology is intended to be used by Special Forces and Army Sniper Teams. So, boiled down, we’re talking a bullet that’s going to be fired at long range by a sniper and be able to adjust its trajectory mid-flight, as to have a better chance of hitting the target.

To make this possible researchers will have to design whole new guidance technologies, such as MEMS based thrusters and initial side thrusting technologies with sufficient authority to move projectiles in flight. The bullet will need high stress tolerant electronics and new targeting systems robust to field operations under a variety of conditions.

The developments in fire power have continued to make warfare more precise, could laser guided-bullets be the next generation of ammunition?