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Hooks Laser
Different Models of the Focusable Green Laser Pointer
The 50mW green laser pointer is a handy gadget especially for anyone in the corporate world who needs to do a presentation every now and then. The light and small focusable green laser pointer is convenient cheap and easy to use. It is used to point onto aspects of a presentation when running slides. If you are a marketer, the cheap green laser pointer is ideal for leaving a quality lasting impression on potential buyers. The same applies to anyone making a PowerPoint or flash presentation to listeners for whatever reasons. Besides its use as a presentation highlighter, the cheap green laser pointer is also used for fun star gazing, poking balloons and even lighting matches. The pointer will even burn off holes in paper and wood pieces.
The cheap green laser pointer comes in a wide variety of looks. You can get a laser pointer in a shape of a pen, a small touch or a flash light. The open back 50mW green laser pointer, has a back that allows for screwing to adjust the size of the focus pointer. You can reduce or increase the size of the pointer highlight by screwing the back side of the pointer. On the other hand, the SD102 hand held focusable green laser pointer usually comes with a hard plastic black body and has designed for easy holding when doing your presentation highlighting. The super slick 50mW green laser pointer on the other hand comes with a long slick looking rectangular shaped body . It comes with a loop tag at the base for hanging the pointer on your hand or onto a hook when not in use. It is easy to hold and also gives the presentation a stylish look especially when working with other stylish gadgets such as the Ipad. The mid open 50mW green laser pointer pen is very tiny also slick, similar to a writing pen. Adjustment of the pointer size is done by rotating the pointer at the center similar to opening a pen.
You can also purchase the cheap green laser pointer with a matching color to your laptop and projector to give a uniform look especially when you need to impress your listeners. You can also have your presentation in green headings or with a green theme so as to match the color of your pointer.
About the Author
DinoDirect China Limited (www.dinodirect.com) is one of the biggest global online retailers. It offers a great quantity of products with competitive price by cutting the middleman and offering products directly to the terminal consumers. DinoDirect possesses a great many software products with proprietary intellectual property rights, owns technological superiority and an efficient marketing team among the similar industry.
What are the chances of a laser as a weapon in the future?
And about how powerful would it have to be to decimate the alien civilization living on Pluto, assuming it was hooked to a satellite orbiting the Earth? Also, would this act be considered an act of war with the aliens?
According to a number of 'Science' journals published in the UK, the US 'almost' already has a large battlefield antitank laser! Certainly, the US spent a lot of time during the nineteen nineties experimenting with pumped chemical laser systems. It has also been reported in the UK that such a system was used at the White Sands missile range to take 'pot shots' at old satellites!
Wikipedia comments, '... Studies led to the design of efficient high-power experimental CW HF laser devices. Power levels up to 10 kW were achieved by The Aerospace Corporation researchers. DF lasing was obtained by the substitution of D2 for H2.
The TRW Systems Group in Redondo Beach, California, subsequently received US Air Force contracts to build higher power CW HF/DF lasers. Using a scaled-up version of an Aerospace Corporation design, TRW achieved 100 kW power levels. General Electric, Pratt & Whitney, & Rocketdyne built various chemical lasers on company funds in anticipation of receiving DoD contracts to build even larger lasers. Only Rocketdyne received contracts of sufficient dollar amounts to continue competing with TRW. TRW produced the MIRACL device for the U.S. Navy that achieved megawatt power levels. The latter is believed to be the highest power continuous laser, of any type, developed to date (2007).
TRW also produced a cylindrical chemical laser (the Alpha laser) for DARPA, which had the advantage, at least on paper, of being scalable to even larger powers. However, by 1990, the interest in chemical lasers had shifted toward shorter wavelengths, and the chemical oxygen-iodine laser (COIL) gained the most interest, producing radiation at 1.315 μm. There is a further advantage that the COIL laser generally produces single wavelength radiation, which is very helpful for forming a very well focussed beam. This type of COIL laser is used today in the ABL (Airborne Laser, the laser itself being built by Northrop Grumman) and in the ATL (Advanced Tactical Laser) produced by Boeing. Meanwhile, a lower power HF laser was used for the THEL (Tactical High Energy Laser) built in the late 1990s for the Israeli Ministry of Defense in cooperation with the U.S. Army SMDC. It holds the distinction of being the only fielded high energy laser to demonstrate effectiveness in fairly realistic tests against rockets and artillery. The MIRACL laser has demonstrated effectiveness against certain targets flown in front of it at White Sands Missile Range, but it is not configured for actual service as a fielded weapon. This may soon change with ABL and ATL, if current plans and funding hold out.
Future Variants
With advances in Super-Alloy construction the USAF is currently working on a new type of chemical laser using cold fuel as its energy source with advantages of cooling and controlled firing. The Cold Chemical Laser or CCL is believed to use liquid nitrogen or liquid hydrogen as its fuel source. The fuel is compressed to over 1000 psi and ignited, similar to a Jet engine, and the hot compressed gas is ejected through a barrel or nozzle at extremely high speed. Power output is in excess of the 300Kw range and at around 4,500 degrees C will melt Stainless Steel. Due to the extreme force of ejection of heated gas, it would be most effective against aircraft and light to Medium Tanks. However this design comes at a cost of the price of fuel (Liquid Nitrogen or Liquid Hydrogen). Also the weapon or device would probably use a classified form of Ceramic-Titanium construction. The weapon would probably be the equilivant of a 150mm shell at close range. If prices become lower in the near future, it is likely the weapon or device could be built circa 2014. ...'.
Its seems that 'good' science fiction slowly becomes science fact - 'ET you have been warned!'.
Fish Hooks - Laser