Do it Yourself, DIY hobbyist-made homemade, portable lasers that can melt even steel.

Illustration of a groundbreaking 250-watt handheld laser device created by YouTuber Styropyro. Image generated by AI. (SustainAbility Times, “I Built a Laser from Hell”: YouTuber Unleashes World’s Strongest Handheld Beam That Instantly Melts Metal and Ignites Anything)

Above: (SustainAbility Times, “I Built a Laser from Hell”: YouTuber Unleashes World’s Strongest Handheld Beam That Instantly Melts Metal and Ignites Anything)

Laser is not a toy. One single laser LED can burn the paper. In the second film, you see that the 1W laser LED can put newspaper on fire. But, the most powerful hand-held, homemade laser can make much more. The YouTuber named Drake Anthony made that thing. And its introduced in many media pages. The first film is about that, the most powerful hand-held laser. 

The 250 W laser uses LED-based technology. That makes it possible to make portable lightweight, high-power laser systems. That laser can melt steel and those things make them very dangerous in the wrong hands. The laser system that shoots a laser beam through the laser lead-made laser beams binds that energy into those beams. This effect is known as the maser effect. 

The requirement for that thing is that laser rays that come from the bottom of the system are stronger than beams that come from its sides. Another way to make that system is to use high-power holograms. Those high-power or high-energy holograms inject energy into that laser beam. And that can raise its energy level to higher than the creator predicts. Another way is to aim multiple laser- LEDs at the same point. 

In the wrong hands, those portable systems can be dangerous. They can be used to cut electric wires. And if they are aimed at things like aircraft. They can scratch to the wing. That means those systems can be dangerous and at this time dangerous means both purpose and non-purpose damages that the high-power laser rays can cause. A single laser LED that injects energy into organs like eyes or skin can cause deep burning injuries. And that makes those systems dangerous.

Above: The most powerful hand-held laser.  

Above: 1W laser LED burns newspaper. 

When we think about military applications, high-power portable lasers can make a similar revolution as drones. The ability to interconnect laser communication lasers and laser weapons makes it possible to create systems. They can also destroy drones and other targets. Laser systems can drill holes in cannons and engines. And that makes them ideal for sabotage. 

If multiple drones aim laser beams at one point, that can destroy even large, and well-armored targets. Those lasers can cooperate with drones. If the drone has a mirror and the laser beam is aimed at it, that system makes it possible to shoot laser beams around the corner. The mirror drone that hovers above the battlefield can aim those laser beams over the hills and other blockage. 

The fact is that laser weapons are also deadly tools. If somebody uses a laser rifle as an assassination tool, there is no bullet that nobody can compare like police normally make in gunshot cases.  High-power laser rays that are shot at the water balloon can cause extremely powerful explosions when they cause sudden vaporization of water. 

The power of that explosion depends on how powerful that laser ray is. And how fast it can transfer its energy to that water. If that evaporation happens very fast. That can create a powerful pressure effect that can damage things. That is around it. So that makes it an effective stun gun. 

https://www.sustainability-times.com/energy/i-built-a-laser-from-hell-youtuber-unleashes-worlds-strongest-handheld-beam-that-instantly-melts-metal-and-ignites-anything/

New laser-propelled spacecraft can revolutionize space travel.

"By harnessing laser-driven propulsion, scientists aim to send spacecraft to distant star systems faster than ever before. New advancements in materials and measurement techniques are bringing this once-fantastical concept closer to reality. Credit: Breakthrough Starshot" (ScitechDaily, From Sci-Fi to Reality: Laser-Powered Sails Are Changing the Future of Space Travel)

Solar sails that use laser beams to accelerate their speed are the new tools for space technology. The regular solar sails use solar particles to accelerate their speed to high enough that they can travel to the Kuiper Belt and beyond. The solar sail can take extra energy from laser beams that are shot from ground or orbital laser systems. In some ideas, lasers that accelerate spacecraft can be in stable positions in the solar system.

There, they shoot laser beams at spacecraft when they travel past them. Those lasers can use solar power. But in longer distances, they can use nuclear power in so-called YAG technology, where acetylene light there, acetylene burns in pure oxygen and gives light to the laser elements like flash tubes. That means the high-power lasers don't need nuclear reactors. 

That is one variant of the Medusa drive. The solar sail that the nuclear bombs accelerate. In some variants, the nuclear bombs will be sent to certain points in the solar system. When sail travels past them, those hydrogen bombs will detonate. 

The laser system can also connected to the spacecraft itself. The high-power wireless electricity transportation can solve the power-source problem. 

Then, the solar sail is put to the front of the craft. A laser system can push that craft ahead by sending the laser beams to the sail. The laser gives a very weak thrust if it is aimed backward. But if the laser shoots forward to the sail, that is ahead of the craft. That kind of system can be a new tool for space research. 

The solar sail can also operate as a radar system in that kind of spacecraft. The lasers are connected with solar-sail technology, which makes them quite fast. And they can travel to the Kuiper Belt. Maybe some of those systems find the planet X. 

The searchers can use things. Like ultra-accurate atom clocks to measure the changes in time dilation. Those systems can uncover the gravity effect. But those systems must get to the Kuiper Belt. 

In some models, the land-based laser systems can also raise solar sail out from the atmosphere. The idea is that the solar sail can be connected to the parachute-shaped wing. And the laser systems can push those things out of the atmosphere. This technology is not new. In some models, the parachute or the hot air balloon hangs the spacecraft. In some versions, the laser can create the plasma in the asbestos bag that makes the system look like a hot air balloon. The laser system can be in the rocket. 

The problem is that those systems must be very big. They must share the heat energy to a large area so that the laser will not burn a hole in the system. Another way is to use some liquid gas that keeps the temperature low in the balloon or parachute. That lasers push upwards. 

The hot-air balloon or even hydrogen balloon can raise the spacecraft like a small shuttle over the atmosphere. The hot-air balloon can fly out from the atmosphere if the system has an internal oxygenizer. That means the system can operate like a rocket engine that operates oppositely than normally. The system can basically be the acetylene-oxygen welding system that pushes the asbestos balloon upwards. The hot exhaust gas can push the balloon forward. 

The hydrogen balloon can use mylar, and it's like an Echo satellite, which was also a balloon. The pressure decompression ventilation can remove pressure, and that makes the balloon useful. 

The test with laser-powered spacecraft or laser-powered spacecraft models began before 2010. In those systems, lasers make a plasma that raises the craft to high altitudes. In some versions, the lasers are put in the spacecraft, and they are aimed at the carbon fiber stick that makes plasma in the chamber. The system can offer very cheap and silent propulsion to spacecraft. 

https://scitechdaily.com/from-sci-fi-to-reality-laser-powered-sails-are-changing-the-future-of-space-travel/