Forest Green
ACCESS: Above Top Secret
- Joined
- 11 June 2019
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Interesting for applications in space, but not in the atmosphere since such small masses would either slow down very quickly or vaporize in the atmosphere at those speeds due to friction and aero-heating.@bcredman. That's interesting, because 1MW net can theoretically accelerate 0.2g to 100km/s, or 0.0001g to ~4,500km/s.
Unless nanotechnology allows them to withstand very high temperatures for short periods. At 4,500km/s, resistance only needs to last ~0.022sInteresting for applications in space, but not in the atmosphere since such small masses would either slow down very quickly or vaporize in the atmosphere at those speeds due to friction and aero-heating.
Perhaps.Unless nanotechnology allows them to withstand very high temperatures for short periods. At 4,500km/s, resistance only needs to last ~0.022s
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New record set for world's most heat resistant material | Imperial News | Imperial College London
Researchers have discovered that tantalum carbide and hafnium carbide materials can withstand scorching temperatures of nearly 4000 degrees Celsius.www.imperial.ac.uk
Interesting idea.Light alone can levitate some substances
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Light-induced levitation of ultralight carbon aerogels via temperature control - Scientific Reports
We demonstrate that ultralight carbon aerogels with skeletal densities lesser than the air density can levitate in air, based on Archimedes' principle, when heated with light. Porous materials, such as aerogels, facilitate the fabrication of materials with density less than that of air. However...www.nature.com
I was thinking multiple beams--so as to pantograph a "sky cursor" around.
Cool video.
Probably if the drone's vision system has the laser source in its field-of-view, but not necessarily if the laser is attacking the drone from the side or rear of the drone.I guess it might disrupt the drones feed/vision much earlier though. Shame we can't see it from the drone operator's persepective.
I'm not sure since some of the laser energy would be transmitted through the spaces between the propeller blades depending on aspect angle, and convective cooling by the air flow across the spinning blades may dissipate some to the energy deposited by the laser beam causing the temperature to rise more slowly in the props than other parts of the drone. On the other hand, the materials that the props are made of may melt at a lower temperature than other materials in other places on the drone.I was thinking that if it aimed for the props rather than the CoM, it might down it quicker.
A lot of marketing verbiage in that article, but no actual technical description of the system concept.![]()
Anti-Drone System Concept Revealed - Defense Advancement
Laser Photonics Corporation and Fonon Technologies have released a visual concept of the Laser Shield Anti-Drone System (LSAD) – a joint development by the two companies to create a laser defense system for use against unauthorized drone activity. Following the successful early testing of...www.defenseadvancement.com
These Phys.org news reports can be so frustrating because they leave out important details. In this article about the most powerful electron beam, the actual peak power level achieved is not stated.Quite an electron beam
True. For a rectangular pulse of 1 fs, 1 J of energy produces a peak power of 1 PW.You don't actually need that much energy to yield petawatt power over the duration of femtoseconds
I couldn't help laughing at the following typo in the article: "If successful, the technology would be transitioned into the Army’s Program Executive Office for Missies and Space."![]()
Army awards HII's tech division contract to develop high-energy laser - Breaking Defense
The weapon is envisioned to protect Army bases and vehicles from small- to medium-sized drones.breakingdefense.com
The article does not give any technical details on the laser weapon or on who is building the laser.![]()
Army awards HII's tech division contract to develop high-energy laser - Breaking Defense
The weapon is envisioned to protect Army bases and vehicles from small- to medium-sized drones.breakingdefense.com
It was probably DOGE that made them omit the 'l' to save ink.I couldn't help laughing at the following typo in the article: "If successful, the technology would be transitioned into the Army’s Program Executive Office for Missies and Space."
Now, that's a government office that needs to be investigated by DOGE!![]()
But surely less effective than a sniper rifle and probably no more accurate than a decent sniper at 300-500m.![]()
SOFINS 2025 – CILAS HELMA-LP, a portable laser weapon against static targets - EDR Magazine
Leveraging the experience acquired with its HELMA-P laser system, tested by the French Navy and used to secure some eventswww.edrmagazine.eu
The advantages of CILAS over a sniper rifle that they are touting are stated as follows in the article: "Silent and invisible, CILAS’ “sniper laser” would definitely hit the enemy by surprise being totally silent, generating uncertainty and psychological pressure on the opponent."But surely less effective than a sniper rifle and probably no more accurate than a decent sniper at 300-500m.
A new airborne laser pod, seen in detail at Sea Air Space, is being pitched as a solution for fleet defense against one-way attack drones. The capability is separate from previous efforts by the Department of Defense to put lasers on aircraft.
The new laser is part of the General Atomics Laser Weapon Systems portfolio, centering around the scalable High Energy Laser (HEL) Weapon System. The laser is in the 25kW class and scalable to 300kW in both pulsed and continuous wave systems, capable of operating in all environments.
General Atomics booth at Sea Air Space featured a display of an MQ-9 with an underwing laser pod firing at several ‘Shahed’ style one-way attack drones approaching a surface warship. The pod holds a 25kW distributed gain laser with a large ram air intake for cooling, alongside an ultra-high power density battery system.
The airborne laser concept uses distributed gain technology to enable airborne operations with tight size, weight, and power (SWaP) constraints. Distributed gain allows for efficient cooling and beam generation that can handle the requirements of flight and constraints that an aircraft poses to onboard systems.