Torch-like laser pointer resembles a torch

It is the torch-like laser pointer .
The fight for funding for laser weapons research areas to broaden a way out, but the "Laser Avenger" can be recognized by the military to take time, but also need to withstand the test of the battlefield. In addition to the above the rapid progress of laser weapon systems, the U.S., there are other such research programs, such as the U.S. Navy's long-term continued support of the development of free electron laser weapons, the U.S. Army High Energy Laser Technology Demonstrator high-energy laser weapons. Can be seen from the current development situation of the U.S. these types of laser weapons systems, laser weapons, the process of development challenges and opportunities. Because any kind of weapon systems can not meet the operational needs in all environments, nor other weapons systems to replace its mandate in a very short period of time. Torch-like  laser pointer resembles a torch.
Several brightness of the light table light intensity (unit: apostilb? × 102) surface of the moon (through the air after)? × 10-1 candles and oil lamps 5? 0 × 10-1 lamps (inflatable tungsten wire) carbon arc? × 104 surface of the sun (by air) 1? 5 × 105 long arc xenon lamp? 5 × 105 high-pressure pulsed xenon lamp 1? 0 × 106 ruby pulsed laser (pulse width of 1 ns, the beam divergence angle 1 mrad) 3? x 1015 Note: 1? 10-1, or 1/10, 10 -2 1/100, 10 -3 or 1/1000, other analogies: 102 ie, 100, 103 1,000, ... The ..., 1015 after a 15 zeros. ? Ns = 10-9:1 milliradians = 10-3 radians. What is the significance of laser high brightness characteristics? Different laser pointer of different power degrees have different laser energies.
We may have made this experiment: in the hot sun with lens focus, it is easy to match to light, or paper burning a hole means that light can be turned into heat. As long as the convergence of medium-brightness laser beam can produce several thousand to tens of thousands of degrees of heat near the focus, it makes some of the refractory metals and nonmetallic materials rapidly melting as well as gasification. Therefore, the industry has succeeded in using laser precision punching, welding and cutting. For example, it is now widely used ruby laser beam machining watches bearing, nylon spinneret, metal wire drawing dies, etc., the hair so fine holes to play in the above.
Science education, the majority of young people to establish such a strong belief that: Science is always seeking to discover and understand a new phenomenon in the world, study and master the new law, it is creative, it is the relentless pursuit of truth, we need to continue to strive for.