Wednesday, August 26, 2015

Laser Beams, Drones, and the Laser's Place in Warfare

The military is planning on deploying lasers to counter drones.
As lasers grow smaller and more efficient, and as power sources become more powerful, I fully expect lasers to become a vital part of point defense and space warfare. However, in atmosphere, they will never supplant missiles and guns - although they might be able to render obsolete the really large missiles and guns.

The reason why they'll never supplant missiles and guns (especially not the smaller ones) is due to the inherent downsides of lasers. Fog, mist, rain, and snow all significantly degrade lasers, even extremely high powered ones. Lasers are limited to "line of sight" weapons, and as such, are useless to submarines, artillery, and other weapons systems that (hopefully) never see the enemy.
If lasers render missiles and guns obsolete, it will be in the same way that the USS Monitor and the CSS Virginia (although not the first Ironclads, among the first to be used in anger) rendered naval smoothbore cannon obsolete. Not by being better at the job, but by preventing the job from being completed.

Drones and aircraft will be the first things to go. Drones, especially, are extremely vulnerable to lasers. They are slow moving, meaning that a lower powered laser will have an easier time staying on target long enough to destroy it. Yes, many (most) military drones have minimal radar returns, making it difficult to distinguish them from birds on radar. For this purpose, the MK1 Eyeball and other similar sensors may make a comeback. In fact, it may just be possible for someone to cobble together an anti-drone laser from publicly available parts. 2 Watt lasers already burn through plastics with ease, and given that drones are usually made from plastics and composites due to radar cross section and cost, it really doesn't take too powerful of a laser to pose a threat to drones. The sensitive electronics inside the drones are even more vulnerable than their plastic/composite exteriors, and in the end, some smart fellow is going to create a laser array to get the same effect out of a bunch of cheap little lasers that he would get out of one really expensive laser.

Aircraft, on the other hand, require more powerful lasers if you're going to take them down by damaging critical equipment. This assumes that you're not classifying a pilot's eyes as critical equipment, or that you're simply not quite enough of an asshole to be willing to burn someone's eyes out just to kill them. Unfortunately, there are plenty of assholes out there who are willing to burn someone's eyes out. Some of them aren't even doing to kill people, they just think it's funny. In the end, lasers used against manned aircraft will vary in power depending upon what kind of kill you want and what sort of resources you have. If you have to kill an aircraft and you don't have a multimillion dollar budget, you're either going to be improvising some sort of rocket, or you'll be shooting a powerful handheld laser at someone's eyes.

Point defense, that is, shooting missiles, rockets, and other assorted ordnance out of the sky, is another place where lasers will excel. With a response time limited only by the laser's ability to target and destroy, lasers will come to dominate close in point defense. The old CIWS won't go away - as per the downsides in paragraph 2, they'll need something that can handle adverse weather conditions as a backup - but it'll be relegated to the backseat. Unfortunately, for the warfighter on a tight budget, this is a realm mostly occupied by expensive systems. I'm sure that something could be cobbled together using a camera, a repurposed Arduino or similar, and a homemade laser array, but it would require technical expertise well outside of that of the average person. In fact, it would probably require a small team to create something of the sort.

Space warfare is the true domain of lasers. Without an atmosphere to limit ranges or produce fog, and aimed at fragile, yet important systems, it is only a matter of time before lasers become predominant in space.

Infantry wouldn't have much use for lasers as a primary weapon. Note disadvantages. However, as a support weapon, lasers have much to recommend them. Consider the previously mentioned 2 watt laser.  From a review (also, check out the referenced manual):
A 24-page User Manual is included. Six pages cover the hazards of a Class 4 laser. Most of this material was written by, so we are a bit biased, but we do think this is useful and comprehensive. Hazards discussed include:
  • direct, reflected and diffused beam eye damage
  • skin burns
  • flammable material burns
  • never aiming at aircraft or stars
  • blue light photochemical eye damage
The user is cautioned to wear safety glasses. The user is told that this is NOT to be used as a laser pointer (it is too bright), not to aim at vehicles or law enforcement officers, and not to harass or annoy others.
Hmm... Skin burns? Flammable Material Burns? Imagine sweeping a group of men across the chest with this laser. You'll either: A. burn them or B. set them on fire. Either result is going to end with them giving you plenty of time to shoot them dead.

Most other purposes are beyond the means or impractical even for the richest of Nations. Anti-tank lasers? Forget it. Artillery? Impossible, unless you think that lobbing really expensive lasers at an enemy is a good idea, or that nuclear bomb pumped lasers deserve a place outside of space warfare. And in neither case do you really have laser artillery. So, in the end, while lasers aren't the future of warfare, they're definitely part of the future of warfare.

Thursday, August 6, 2015

As if I needed another reason to avoid Chicaco...

They're going to apply a 9% tax to the internet ("Electronically delivered amusements" and "nonpossessory computer leases").
Money quote:
These intentionally broad new tax rules affect more than just Chicagoans who want to stream their favorite show on Netflix or play a new album on Spotify. The 9-percent hike also applies to businesses that use could[sic] services, such as realtors who access real-time listings and attorneys who rely on Internet court databases.

Wednesday, August 5, 2015

Korora 22 KDE

I recently upgraded from Korora 21 Darla to Korora 22 Selena.
My first impression is that KDE Plasma 5 looks a lot better than KDE Plasma 4. My second impression is that, besides looking better, everything still works - nothing is broken.
I switch back and forth between Linux and Windows - I'd probably spend more time on Linux, but only 13 of my Steam games will run on it. On my gaming PC, I run Windows almost exclusively, but on my laptop its the other way around. In fact, I only ever boot Windows on my laptop to perform updates.
And its all because of Korora.
Ease of use? Check.
Web browser, email client, and office suite? Check.
Korora is, in fact, easier to set up and use than Windows 7. A lot easier. I'm certain that it'll be easier than Windows 10.

The Texas Voter ID Law isn't Dead

Despite what you might thing after reading the headline, "Federal Court Strikes Down Tough Texas Voter ID Law", the law is far from dead. If only because this one is probably going all the way to the Supreme Court. 
The Wednesday decision was a victory for the president, who has directed the Justice Department to try to beat back a movement in several Republican-led state governments to implement ballot-box restrictions.
Ballot-box restrictions. I like that. Yeah, we want to implement ballot box restrictions that keep Mickey Mouse, dead people, and non-citizens from voting. When voter participation significantly exceeds the national average, and registered voters outnumber those eligible to vote, you've got a problem. Electoral fraud is a stain upon our country's rule of law and should be prosecuted with extreme prejudice, in addition to making it difficult to accomplish.
Texas was then free to enforce its law, which requires one of seven forms of approved identification, a list that included concealed carry licenses but not a college student's university ID. Proponents said would reduce ballot fraud.
Note that the article is acting like concealed carry licenses - a government issued photo ID - are inferior to a college's student ID - an unregulated, easily faked, non-governmental ID, that can be issued to anyone. It makes perfect sense to prevent student ID from being used to register to vote. Government issued IDs use various tactics - such as watermarks - to make the creation of fake IDs difficult (though not impossible) and include barcodes and magnetic strips. Student IDs are a piece of plastic with your name, the name of your school, and possibly the school's mascot, and have no legal standing.  There is no good reason to allow student IDs to be used for voter registration, and a lot of good reasons to prevent it.
"Today's ruling is a victory for every Texas voter. Once again, the rule of law agrees with Democrats. The Republican voter ID law is discriminatory," Texas Democratic Party Chairman Gilberto Hinojosa said in a statement.
If he really felt that way about the rule of law he wouldn't be so happy. Election fraud is a blight upon the rule of law, rendering the polls untrustworthy. It effectively disenfranchises all the legitimate voters - even the ones who voted the same way that the fraud went - making it so that the only vote that matters is that of the man (or the group) behind the fraud. In time, it will destroy the rule of law and the system will end in violence.