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Ever since 1974, when NASA scientist Jack Cover invented the first stun gun, ordinary people and law enforcement officials alike have been using stun guns as non-lethal self-defense tools. Stun guns are a type of electroshock weapon”a weapon that emits a high-voltage electrical discharge”that can neutralize attackers without killing them, except in rare cases where the stun gun is used for too long on someone with a pre-existing medical condition, usually heart problems.

When the Stun-Gun was discovered in 1974, most law enforcement departements and civilians have started using them as self defense tools. Stun-Guns are coming in different shapes and sizes but all of them cause the same effect, a high voltage electroshock that neutralizes an attack without causing death or severy injury to the attacker.

Law Enforcement departements as well as civilians have recurred to the Stun-Gun for self-defense and law enforcement when non-lethal force was requiered. The stun-gun as we know it today was invented in 1974 by a NASA scientist called Jack Cover. The Stun-Gun is an electroshock device that neutralizes an attacker by an high voltage electroshock.

If you are still slumped up in your SDTV watching movies and TV shows, it is about time to get up and get out of your cave, man. SDTV or Standard Definition Television is obsolete. That device which sprung in 1970’s is already phased out with the coming of HD Television. The latter is topping the sales charts with its twice linear resolution capability compared to SDTV.

Have you heard of Blu-Ray? Its one of the latest technologies of the 21st Century. Blu-Ray is just a disc, like your CD-R or DVD-R. But Blu-Ray discs have a very distinct difference as compare to other media types. That difference is the Blu-Ray discs have a huge storage capacity of between 25GB to 50GB per discs and its gaining more storage space as time to come.