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Messages 76069 - 76098 of 81925   Oldest  |  < Older  |  Newer >  |  Newest
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76069
... Use non-linear fiber optic cables with a bend in them. When the light gets too intense it leaks out around the bend and doesn't continue to the sensor. ...
Henry Cobb
henry_cobb
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Jan 1, 2009
8:37 am
76070
... Where do you put them? A laser pulse capable of blowing out sections of your sensor is lower power level (at the lens) than sunlight, it's just that your...
ac_jackson
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Jan 1, 2009
8:49 am
76071
... I wonder if there might be some potential to use slow light materials to protect sensors from damage. If slow light materials can be made robust enough...
Coridon Henshaw
coridonhenshaw
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Jan 1, 2009
10:57 am
76072
... I'm assuming pulsed lasers (operating at a high rate of fire). Would this make Ti:Sapphire lasers or something like it the natural choice? Or maybe diode...
mechdan
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Jan 1, 2009
1:08 pm
76073
... Thanks! That gives me precious hard numbers to work with. ... Well, what if the photons hit a bulk material that is largely insensitive to surface...
mechdan
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Jan 1, 2009
1:40 pm
76074
... light gets too intense it leaks out around the bend and doesn't continue to the sensor. This basic idea sounds promising, although I'd be surprised if the ...
mechdan
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Jan 1, 2009
1:57 pm
76075
... For Rick's purposes, there's no difference between a "pre-generated fleet" and one pre-generated by other fleet designers. I perfectly understand Rick's...
mechdan
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Jan 1, 2009
2:08 pm
76076
... I'm not so sure it's so easy. Given the relatively short timescale of the engagements, the cryogenic fuel tanks provide a ready supply of temporary...
mechdan
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Jan 1, 2009
2:56 pm
76077
... The Navy already has an answer for a long range stealth blind shot like that. Zig zag your ship slightly and the mass launcher rounds will either pass in...
Henry Cobb
henry_cobb
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Jan 1, 2009
3:20 pm
76078
... From: "mechdan" <mechdan@...> To: <sfconsim-l@yahoogroups.com> Sent: Thursday, January 01, 2009 8:08 AM Subject: [sfconsim-l] Re: Sad commentary on...
Eric
ehenry0623
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Jan 1, 2009
4:01 pm
76079
... In modern times, Nd:YAG is the laser of choice for producing high energy pulses (typically lasting a nanosecond or so). Ti:Sapphire is used for pulses of...
Luke Campbell
panoptes5
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Jan 1, 2009
8:57 pm
76080
... I just feel like there may be many decades between lab use and fielded military hardware. So it's not crazy to assume something based on something we...
mechdan
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Jan 1, 2009
10:58 pm
76081
... like that. ... pass in the night or reveal themselves. If it's only slightly, then the missile doesn't need to reveal itself until the last minute. Even...
mechdan
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Jan 1, 2009
11:02 pm
76082
... There are few civilian applications for systems with the behavior of militarized lasers; laser drills and laser welders, which are probably the closest...
ac_jackson
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Jan 2, 2009
12:44 am
76083
An interesting idea would be to not only use the fuel tanks as armour, but also the booster thruster, as it's already designed to get very hot. If for some...
jamealbeluvien
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Jan 2, 2009
3:18 am
76084
If you flip end over end and your fuel tank is ruptured then you will have an opposite thrust to your direction of travel and may not reach your target, and...
brian
brian2webb
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Jan 2, 2009
4:09 am
76085
... You still got the big mo of the closing speed. Think back to the countdown intercept system. Early thrust is far more effective than late thrust. -HJC...
Henry Cobb
henry_cobb
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Jan 2, 2009
6:17 am
76086
... Your closing speed doesn't help you--the greater the closing speed, the lower this effect, due to the reduced amount of time to impact. Again, if you're...
Isaac Kuo
mechdan
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Jan 2, 2009
3:12 pm
76087
Isaac Kuo mechdan@... ... By the time you'd be doing this flip maneuver, you would already have spent your booster tank. This means that you already...
Isaac Kuo
mechdan
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Jan 2, 2009
3:22 pm
76088
... I think we're looking at it from two different directions. I'm thinking that natural market forces and economies of scale will mean civilian lasers will...
Isaac Kuo
mechdan
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Jan 2, 2009
3:38 pm
76089
... thinking that natural market forces and economies of scale will mean civilian lasers will have a lot more R&D and general progress than military lasers. ...
ac_jackson
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Jan 2, 2009
7:38 pm
76090
Then don't start flipping until the tanks are empty. ... lightweight ... solution ... of the ... same). ... while ... either the ... unlike ... collide...
jamealbeluvien
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Jan 2, 2009
9:24 pm
76091
... What form of point defense laser do you expect in this time frame? I would bet against chemical powered continuous lasers, as a dead end. Solid state...
Isaac Kuo
mechdan
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Jan 2, 2009
9:36 pm
76092
... Almost certainly diode-pumped solid state lasers. ... end. Solid state lasers look more promising to me, in the near-mid term, but I doubt power levels...
ac_jackson
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Jan 2, 2009
10:29 pm
76093
Here's a patent for a process to make semiconductor sensors hardened against laser attack. ...
Henry Cobb
henry_cobb
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Jan 3, 2009
7:52 am
76094
... gross physical damage to the sensor. In other words, it might actually allow your sensor to reach the surface ablation threshold, which will probably not...
ac_jackson
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Jan 3, 2009
8:36 am
76095
... So you just cover your entire ship with sensors and if somebody does do that to you your ship melts anyway. -HJC...
Henry Cobb
henry_cobb
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Jan 3, 2009
8:50 am
76096
... Well, I've decided that all of this "stealth" stuff just gives me a headache. The simplest thing is for me to assume the dominant laser technology is...
mechdan
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Jan 3, 2009
12:41 pm
76097
... That's not a bad way to look at it, but you also have to consider phase. ... Here's where intuition starts to break down. One non-intuitive thing is that...
mechdan
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Jan 3, 2009
1:17 pm
76098
... A standing wave, such as a static magnetic field, is already in phase; as long as you can generate a flat reflector, the reflection will also be in phase....
ac_jackson
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Jan 3, 2009
5:47 pm
Messages 76069 - 76098 of 81925   Oldest  |  < Older  |  Newer >  |  Newest
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