BPSK with Barker codes or gold codes or even LFM can get you about 23 dB of gain in your matched filter so you could be well below the noise floor while still detecting your emission. You have to balance this with the sigma of the object you're trying to detect though.
Power lines hum in the 50 Hz to 400 Hz region based on what country you're in. The radio communications are well above this in VHF to 6 GHz depending on what kind of range they need. Their receivers probably don't even go down that far in frequency so they couldn't mistake it.
Are they doing themselves a disservice by naming their company after Faraday? Doesn't it seem like they're trying to clone the success of Tesla with that? Not trying to be off-topic, but I just can't understand the business strategy.
The F-22 is operational now, and completely wipes the F-35 on at least two fronts - supercruise and all-aspect stealth. It also has a worthy air-to-ground role, carrying up to four small diameter bombs or a single 1,000 lb JDAM per weapon bay. Finally, with two engines it has a margin of safety that the F-35 can't match.
With F-35 costs spiraling out of control, the F-22 is looking to be quite a bargain at around the same cost per airframe.
Let me preface this by saying the F-22 is awesome, but the JSF isn't supposed to match the Raptor in super cruise or stealth. The point of the F-35 is to replace the F-18 for the Navy, the Harrier for the Marines, and the F-16 for the Air Force. It's essentially supposed to be a cheap aircraft with respectable characteristics to replace the aging aircraft aforementioned.
Yes, in junior high I WALKED to school, which was over a mile away.
We rode our bikes to school in Elementary School and it was freaking awesome. It was about a mile away, but I enjoyed that a lot since there were about 5 of us that would ride together. I hope parents aren't too afraid to let their kids do this anymore.
Yes, my parents usually had no idea where we were after school, or especially in the summer. Back then, parents weren't fixated/paranoid on children like they are now.
Agreed, in elementary school we'd often hang out at one of our friends houses and swim or play in the woods. We even tried to start our own landscaping business and had a few customers.
Yes, we played dodgeball in school and it was fierce.
But it was f***** awesome!
All in all, parents need to give their kids some freedom to do stuff on their own and not control every second of their lives. I never needed to have my parents tell me to play outside cause it was a nice day, cause as a kid I was generally doing this anyways. Thinking back on it, I wish I could do that right now instead of working full-time...
I don't understand, what is the difference between these schools and having what we call "recess" in the US? We always used to play outside and in the woods (granted never with knives and fires whilst unsupervised.) We learned leadership via school yard games such as man-hunt, tag, capture the flag, sharks and minoes, etc. I think as long as kids are playing with eachother outside, they'll develop these same communication skills that you can get from these Forest Kindergartens (and not pay $34,000 USD per year on tuition.)
You should try working in an industry where 95% of the people used to be in the military and they can't let go of military structure.
I'm in defense and I think 95% is a BIT of an exaggeration... I do hate some of the former servicemen I've worked with in the past because they have a stick up their ass, but for each asshole there's at least two to three nice guys.
What you've described seems like a dead on description for computational materials science. Which is still a very active area with plenty of investment for both chemical companies and semiconductor companies. My work is in predictive models for ion sputtering, but there is a ton of really cool stuff being done in other fields. So yeah, ethical exists at least its no more unethical than using computers; without which GPU programming would be difficult.
You can find anything unethical though. These semiconductors could be used in FPGAs which are on a missile or other weapon so then by the OPs definition, is this not unethical? (I personally think semiconductor processing is, but there will always be some crazy asshole who finds something wrong with anything...)
I think your conscious is a little bit skewed. The defense company I work for (and you could say this about many of them) creates products that protect our warfighter, not kill the other guy (unless it's absolutely necessary.) All of the products I work on can't even kill people and are also mathematically ambitious such as radar warning detectors. The defense industry gets a bad wrap because people think we're all mindless programmers who write software to kill people when it's actually nothing like that...
I think you may have missed the many misspellings of idioms in this thread:
"Case and point" instead of "case in point" "For all intensive purposes" instead of "for all intent and purposes" "doggy-dog world" instead of "dog eat dog world" "hand-and-hand" instead of "hand in hand" "undermind" instead of "undermined" "mute point" instead of "moot point" "Irregardless" instead of ???
I still maintain that "irregardless" is a word...:(
You realize that not every good engineer goes into the military right? If they only let the militaries corp of engineers do research we would've been destroyed as a country a long time ago (since there aren't enough good engineers in the military). The USAF didn't even want to pursue stealth technology at first because they wanted to push for faster and farther flying missiles. Now look at how much stealth has done for us in terms of reconnaissance and bombing. It took Ben Rich at Lockheed Skunk Works to convince them. Yeah the projects go overpriced often, but if it wasn't for defense contracting companies the US would be defenseless.
What you're looking for is the shortest Hamiltonian path. Although it may seem like there is an efficient way to come up with the optimal solution, there isn't: it's an NP-Complete problem (it's actually the Traveling Salesman Problem.) There are great solutions which are less than optimal, but finding the best path where the number of vertices is greater than ~26 is too computationally complex.
I've had two internships thus far in my undergraduate career, one with an insurance company and another with a defense contractor. Both of them have been paid, so I guess the question is, who get's sucked into a non-mandatory unpaid internship??
Computer Science is not engineering, you can't call yourself an engineer without getting a degree in an engineering field (sorry, software engineering doesn't count). If you want to become an engineer, switch from CS to Computer Engineering, then you can get your P.E. and call yourself an "engineer."
I also think we have too many "software engineers" diluting the value of our profession. Thankfully a few states already prohibit people from using the word "engineer" in their title if you don't have a P.E. They should do something like that with software engineering positions, since it is NOT an engineering degree.
Cannot agree more. I'm working in defense contracting right now. That's one job we'll never have to worry about getting outsourced. Generally, when I look for jobs I look for ones that say that you must be a U.S. citizen because that looks better in terms of engineering job security.
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BPSK with Barker codes or gold codes or even LFM can get you about 23 dB of gain in your matched filter so you could be well below the noise floor while still detecting your emission. You have to balance this with the sigma of the object you're trying to detect though.
Power lines hum in the 50 Hz to 400 Hz region based on what country you're in. The radio communications are well above this in VHF to 6 GHz depending on what kind of range they need. Their receivers probably don't even go down that far in frequency so they couldn't mistake it.
Are they doing themselves a disservice by naming their company after Faraday? Doesn't it seem like they're trying to clone the success of Tesla with that? Not trying to be off-topic, but I just can't understand the business strategy.
Why would someone name this article "Future Fighters Won't Need Ejection Seats"? The title should have been "Future Fighters Will Be Pilotless"...
The F-22 is operational now, and completely wipes the F-35 on at least two fronts - supercruise and all-aspect stealth. It also has a worthy air-to-ground role, carrying up to four small diameter bombs or a single 1,000 lb JDAM per weapon bay. Finally, with two engines it has a margin of safety that the F-35 can't match.
With F-35 costs spiraling out of control, the F-22 is looking to be quite a bargain at around the same cost per airframe.
Let me preface this by saying the F-22 is awesome, but the JSF isn't supposed to match the Raptor in super cruise or stealth. The point of the F-35 is to replace the F-18 for the Navy, the Harrier for the Marines, and the F-16 for the Air Force. It's essentially supposed to be a cheap aircraft with respectable characteristics to replace the aging aircraft aforementioned.
Tuxedo t-shirt! To quote John C. Reilly: "It says I want to be formal, but I'm here to party!"
Slow clap and a lone tear for whomever came up with the MyCleanPC trolling, probably one of my favorite spam posts. I salute you MyCleanPC.
Yes, in junior high I WALKED to school, which was over a mile away.
We rode our bikes to school in Elementary School and it was freaking awesome. It was about a mile away, but I enjoyed that a lot since there were about 5 of us that would ride together. I hope parents aren't too afraid to let their kids do this anymore.
Yes, my parents usually had no idea where we were after school, or especially in the summer. Back then, parents weren't fixated/paranoid on children like they are now.
Agreed, in elementary school we'd often hang out at one of our friends houses and swim or play in the woods. We even tried to start our own landscaping business and had a few customers.
Yes, we played dodgeball in school and it was fierce.
But it was f***** awesome!
All in all, parents need to give their kids some freedom to do stuff on their own and not control every second of their lives. I never needed to have my parents tell me to play outside cause it was a nice day, cause as a kid I was generally doing this anyways. Thinking back on it, I wish I could do that right now instead of working full-time...
I don't understand, what is the difference between these schools and having what we call "recess" in the US? We always used to play outside and in the woods (granted never with knives and fires whilst unsupervised.) We learned leadership via school yard games such as man-hunt, tag, capture the flag, sharks and minoes, etc. I think as long as kids are playing with eachother outside, they'll develop these same communication skills that you can get from these Forest Kindergartens (and not pay $34,000 USD per year on tuition.)
You should try working in an industry where 95% of the people used to be in the military and they can't let go of military structure.
I'm in defense and I think 95% is a BIT of an exaggeration... I do hate some of the former servicemen I've worked with in the past because they have a stick up their ass, but for each asshole there's at least two to three nice guys.
What you've described seems like a dead on description for computational materials science. Which is still a very active area with plenty of investment for both chemical companies and semiconductor companies. My work is in predictive models for ion sputtering, but there is a ton of really cool stuff being done in other fields. So yeah, ethical exists at least its no more unethical than using computers; without which GPU programming would be difficult.
You can find anything unethical though. These semiconductors could be used in FPGAs which are on a missile or other weapon so then by the OPs definition, is this not unethical? (I personally think semiconductor processing is, but there will always be some crazy asshole who finds something wrong with anything...)
I think your conscious is a little bit skewed. The defense company I work for (and you could say this about many of them) creates products that protect our warfighter, not kill the other guy (unless it's absolutely necessary.) All of the products I work on can't even kill people and are also mathematically ambitious such as radar warning detectors. The defense industry gets a bad wrap because people think we're all mindless programmers who write software to kill people when it's actually nothing like that...
It came from the summarizer who wrote a bad summary about TFA. The GNOME designer himself is not the idiot in this case.
Was that a play on the word "there" instead of "their", you sly devil you?
The idiom is "Moot point", not mute point.
I think you may have missed the many misspellings of idioms in this thread:
"Case and point" instead of "case in point"
"For all intensive purposes" instead of "for all intent and purposes"
"doggy-dog world" instead of "dog eat dog world"
"hand-and-hand" instead of "hand in hand"
"undermind" instead of "undermined"
"mute point" instead of "moot point"
"Irregardless" instead of ???
I still maintain that "irregardless" is a word... :(
You realize that not every good engineer goes into the military right? If they only let the militaries corp of engineers do research we would've been destroyed as a country a long time ago (since there aren't enough good engineers in the military). The USAF didn't even want to pursue stealth technology at first because they wanted to push for faster and farther flying missiles. Now look at how much stealth has done for us in terms of reconnaissance and bombing. It took Ben Rich at Lockheed Skunk Works to convince them. Yeah the projects go overpriced often, but if it wasn't for defense contracting companies the US would be defenseless.
Just in case someone doesn't get it: Bates master is a play on the word "masturbate"
What you're looking for is the shortest Hamiltonian path. Although it may seem like there is an efficient way to come up with the optimal solution, there isn't: it's an NP-Complete problem (it's actually the Traveling Salesman Problem.) There are great solutions which are less than optimal, but finding the best path where the number of vertices is greater than ~26 is too computationally complex.
I've had two internships thus far in my undergraduate career, one with an insurance company and another with a defense contractor. Both of them have been paid, so I guess the question is, who get's sucked into a non-mandatory unpaid internship??
Computer Science is not engineering, you can't call yourself an engineer without getting a degree in an engineering field (sorry, software engineering doesn't count). If you want to become an engineer, switch from CS to Computer Engineering, then you can get your P.E. and call yourself an "engineer."
Would that be legal? It sounds like some form of entrapment (which is illegal)...
I spit out my coffee and I wasn't even drinking any when I read this! I cannot up this comment enough!
I don't know why, but I got a firm LOL out of this. Touche good sir.
I also think we have too many "software engineers" diluting the value of our profession. Thankfully a few states already prohibit people from using the word "engineer" in their title if you don't have a P.E. They should do something like that with software engineering positions, since it is NOT an engineering degree.
Cannot agree more. I'm working in defense contracting right now. That's one job we'll never have to worry about getting outsourced. Generally, when I look for jobs I look for ones that say that you must be a U.S. citizen because that looks better in terms of engineering job security.