When comparing space flight to terrestrial travel it might be more accurate to use fatalities over time or passengers carried instead of miles. The statistical universes of automobile travel and air travel are much larger than maned space travel and it seems a bit like comparing apples to oranges to use fatalities to miles when the passenger mile on space travel is so large compared to terrestrial travel.
From another viewpoint, 40% of the available shuttles have been destroyed, killing all on board. What would the death toll be if 40% of all cars were involved in wrecks where all passengers were killed or 40% of all airplanes eventually crashed killing all on board. Do you think people would keep flying or driving?
Of course the down side is that if the passport is NOT tied to an external database for checking at entry/exit points there's no way to tell if it's been hacked. Any smart card hardware in the hands of the public can be hacked (ask DirecTV) and a passport with a chip that can't be verified by another source is just slightly more difficult to hack than the current version.
Of course even an external database wouldn't prevent someone changing the database too. There are thousands of pasport clerks who would be making these things... What are the odds some can be bought?
It's pretty common in phone closets which are frequently hot. You're standing there punching down wires on the 66 block and you happen to lean a sweaty arm against a block right when a call comes in... Zap!
When coverage maps are accurate... I have yet to see an honest coverage map released to the public from any cell carrier. I know several cell phone RF engineers and they say the so called coverage maps released to the public by the marketing departments bear only a loose relationship to reality. So you cant really go by the coverage map.
You have it backwards. A "silencer" (supressor is the correct term) is really just a muffler similar to the one on your car. It does NOT slow the bullet down and a super sonic bullet will still be heard. Even so, the crack of a supersonic bullet is not nearly as loud or damaging to the hearing as muzzel blast. Normally when you use a supressor you load subsonic rounds too.
They work by slowing down the rapidly expanding gasses from the barrel and reducing the noise from the muzzle blast. They degrade over time because the rubber pieces inside (wipes) get worn out.
Supressors were invented to save the hearing of frequent shooters, and even before the NFA criminal misuse was rare (if ever).
Don't Jam, just put copper mesh in the walls and make the theater a big Faraday Cage. No jamming needed so your not violating FCC regs and the RF won't get in or out. A company I used to work for had one in a lab for RF testing, no pager or cell phone could receive a signal inside.
I've seen the same effect in older buildings that used a metal mesh for plaster lath. I had to put an 802.11 AP in every room of an old house because the RF couldn't get through the walls. Cell phones wouldn't work either. Same effect in buildings whose glass windows have a high metal content.
I had mine done about a year and a half ago. I was 20/600 in both eyes. I'm now 20/20 in one eye and 20/15 in the other.
I have noticed some decrease in night vision but my night vision was worse with contacts, and without them I couldn't see anything anyway. I also can't read a page of fine print half an inch from my eye, no loss there, and the doctor says I may need bifocals a few years earlier than I otherwise would have. I can still read fine print at six inches, and the joy of not needing glasses or contacts to function cannot be described to someone who can see "normally".
That said, if you can function without glasses, and only need them for driving, say 20/40 or so, I wouldn't do it. For me it was worth doing even if I didn't get 20/20 out of it since even 20/50 would have been a vast improvement.
Speaking as a broadband Internet provider, I would love to offer a $19.95 broadband connection. So would any other ISP. Unfortunately it costs me $55/month just to provide the service to a single user. It's not the price of back haul it's the cost of equipment that drives the price up. I can give a user IP to the Internet for about $5/month, but the capx for equipment eats up $35/month. When equipment prices fall retail broadband prices will fall and not before.
Backbone prices are falling through the floor. T1s to the internet can be had for as little as $200/month in some areas. The telcos would love to be able artificially inflate backbone prices, but competition has driven the price down. ALL the high costs of boradband are in the last mile.
My understanding was that the time dilation effect was from a change in the rate of entropy related in some way to the change in mass. If that's so then you could speed up or slow down entropy, and hence the perceived passage of time, but you can't reverse it. I would think travel to the past would need to reverse entropy in some way. Or I could be wrong, physics class was a LONG time ago.
Go back and read the part 15 rules again (And the origional article, they point it out there). There are no squatters rights in part 15... He who was there first has no more claim on the use of the spectrum than the next people that show up. Everyone has to co exist.
Any time consumer owned hardware/software is part of the copy protection scheme, that scheme is doomed to failure. Reverse engineering is a highly advanced art and it's just going to get better. Ask DirecTV how many generations of access cards they've gone through trying to "secure" their signals. Each one was supposed to be unbreakable.
The goal for commercial content protection has to be to stay ahead of the curve just enough to assure current profitability. They realize that sooner or later the copy protection WILL be broken. It's inevitable, even if it's a hundred years from now (but more likely less than one year), that any copy protection will be defeated and the content plastered across the Internet. But that doesn't matter to THIS year's balance sheet.
What's going on with the RIAA, MPAA, Etc. is the industry trying to stay ahead of that curve any way they can. They don't have to stop everyone, just most everyone and they do that by making it just difficult enough that most people won't bother. Like insurance, it's a numbers game.
I doubt things have changed much from when I was in school. Lunch, recess and every other activity was strictly by grade until high school. By then it's too late, paterns are set. How many HS seniors hang out with the freshmen?
I think the social interaction issue is a false argument. How much valid social interaction is there hanging around all day with a bunch of dopey kids your same age? I'd much rather see kids grow up interacting with people of all ages in all walks of life. Public school is an unnatural system created to churn out docile factory workers. Any well adjusted, educated people turned out at the end of twelve years is an accident and failure of the designed system, not a success. Of course the schools are turning out poorly educated people. Thats what they are designed to do.
How many pizzas do I have to order to keep four programmers working through the night?
That's Algebra in a nutshell.
I use Algebra, Geometry, Trigonometry Statistics and yes even Calculus almost every day. Cost curves, margins, product pricing, queuing theory... it's all part of every day business life.
Poor math teaching in school ruins people's lives. I have to teach employees the basic math skills they need to do their jobs, and these are people with college degrees.
If you haven't read it, run, don't walk to Amazon and buy it now. Now that's my kind of "utopia". Government is a dirty word and everyone carries guns. They invented the internet in the 1800's.
Seriously, Smith has written over 20 books with libertarian themes carried to their logical conclusions. They aren't preachy, but darn good plots and good characters you can actually like.
It was easy really. She designed the rings, had them made by a custom jewler and used a cubic zirconia for the stones. The personally designed rings mean a lot more to us than the stone. I can't tell the difference anyway. Don't buy into the diamond hype, but make sure she agrees. Don't do the zirconia and tell her it's a diamond.
Unemployment figures are calculated on the number of people actively looking for a job. People going to school, bumming around Europe, dropping a kid, finding themselves or jerking off are not a component of unemployment figures. They only count people who file at the state employment office and are actually looking for work. If anything the unemployment figures are understated. And yes, I am an economist. At least that what my degree says.
Last time I checked, a LASER isn't actually classified as a radio. We we're discussing RF burns, and while light is, of course, RF, it's not what we were talking about, which was Radio.
Also, I didn't say RF couldn't be focused. ALL RF can be focused, What I said was that 1 Watt wouldn't burn no matter how much it's focused. The statement was in relation to RADIO, not light or ionizing radiation.
I work with antennas all the time, I'm a licensed ham and I operate everything from HF to 10GHz. I know of what I speak.
What a troll! A 1 Watt radio burn, as if. 1 Watt will not burn no matter how much it's focused. As for a microwave oven, they use a hundreds or even a thousand Watts. That's how they heat food.
How about that nasty burn you get from a 60 Watt light bulb? Or have you ever watched toast burn in an oven? That's RF baby. Radiated heat is RF.
The cool thing is that thanks to the inverse square rule, the energy levels drop off pretty quick as you move away from the source. That why the light bulb is hot if you put your hand near it, but it's not from a few more inches away.
Perhaps you need to learn the difference between RF heating and ionizing radiation. One is dangerous, the other isn't any more deadly than a hot light bulb.
Wrong. I operate regularly on 1.2 and 2.4 GHz. I have a friend that runs at 10GHz. Hams are primary on 2.4. Here is a handy link that shows the ham bands.
Microwave ovens aren't part 15 devices. They are licensed under different rules. I can always tell when someone down the street is defrosting dinner in the microwave because I get interference bands on my TV picture. That's NTSC TV on 2445MHz.
On every part 15 device are the words:
"This Device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received. Including interference that may cause undesired operation."
An otherwise legally operated part 15 device that causes interference to hams or any other primary user in that band is operating illegally and must shut down.
Oops, your ignorance is showing. Almost ALL advances in the radio arts in the last 100 years have come from amateur radio operators. We've been doing packet radio since before computer networks existed. Hams are on the cutting edge of microwave communications setting distance records of hundreds of miles in the 300GHz band. We've done spread spectrum for decades and several stations are actively experimenting with ultra wide band. We launch some of the most sophisticated communications satellites in orbit. We operate meteor scatter across the Continent.
Most HF rigs (the under 50MHz rigs) cost between $1000 and $4000 and are made by Kenwood, Icom and Yaesu. Top names in radio equipment. They use DSPs and speech filters that are years ahead of anything you'll find in consumer products. 2 meter and 70 cm rigs run between $150 and $500, even at Radio Shack.
Also Hams are critical emergency communication operators. When bad weather happens hams are out there acting as storm spotters and feeding information back to the National Weather Service. Nothing beats trained eyeballs on the spot. We provide communications when 911 systems go down and in disasters we provide the critical link that save lives.
Realize that the FCC is chartered to maintain the airwaves in trust for the American people and ask your selves who serves the people better, hams or 802.11 in Starbucks?
Then it needs to be changed, not ignored. If the legislature can manage to pass an ammendment eliminating the 2nd ammendment and three fourths of the states ratify it, then fine.
That won't happen, and the anti-gun people know it. That's why they're trying to back door it.
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When comparing space flight to terrestrial travel it might be more accurate to use fatalities over time or passengers carried instead of miles. The statistical universes of automobile travel and air travel are much larger than maned space travel and it seems a bit like comparing apples to oranges to use fatalities to miles when the passenger mile on space travel is so large compared to terrestrial travel.
From another viewpoint, 40% of the available shuttles have been destroyed, killing all on board. What would the death toll be if 40% of all cars were involved in wrecks where all passengers were killed or 40% of all airplanes eventually crashed killing all on board. Do you think people would keep flying or driving?
I have five antennas on my truck. What's wrong with antennas?
-Alan, KD5FJK
Of course the down side is that if the passport is NOT tied to an external database for checking at entry/exit points there's no way to tell if it's been hacked. Any smart card hardware in the hands of the public can be hacked (ask DirecTV) and a passport with a chip that can't be verified by another source is just slightly more difficult to hack than the current version.
Of course even an external database wouldn't prevent someone changing the database too. There are thousands of pasport clerks who would be making these things... What are the odds some can be bought?
It's pretty common in phone closets which are frequently hot. You're standing there punching down wires on the 66 block and you happen to lean a sweaty arm against a block right when a call comes in... Zap!
I bet it's happened to every phone guy out there.
When coverage maps are accurate... I have yet to see an honest coverage map released to the public from any cell carrier. I know several cell phone RF engineers and they say the so called coverage maps released to the public by the marketing departments bear only a loose relationship to reality. So you cant really go by the coverage map.
You have it backwards. A "silencer" (supressor is the correct term) is really just a muffler similar to the one on your car. It does NOT slow the bullet down and a super sonic bullet will still be heard. Even so, the crack of a supersonic bullet is not nearly as loud or damaging to the hearing as muzzel blast. Normally when you use a supressor you load subsonic rounds too.
They work by slowing down the rapidly expanding gasses from the barrel and reducing the noise from the muzzle blast. They degrade over time because the rubber pieces inside (wipes) get worn out.
Supressors were invented to save the hearing of frequent shooters, and even before the NFA criminal misuse was rare (if ever).
Don't Jam, just put copper mesh in the walls and make the theater a big Faraday Cage. No jamming needed so your not violating FCC regs and the RF won't get in or out. A company I used to work for had one in a lab for RF testing, no pager or cell phone could receive a signal inside.
I've seen the same effect in older buildings that used a metal mesh for plaster lath. I had to put an 802.11 AP in every room of an old house because the RF couldn't get through the walls. Cell phones wouldn't work either. Same effect in buildings whose glass windows have a high metal content.
I had mine done about a year and a half ago. I was 20/600 in both eyes. I'm now 20/20 in one eye and 20/15 in the other.
I have noticed some decrease in night vision but my night vision was worse with contacts, and without them I couldn't see anything anyway. I also can't read a page of fine print half an inch from my eye, no loss there, and the doctor says I may need bifocals a few years earlier than I otherwise would have. I can still read fine print at six inches, and the joy of not needing glasses or contacts to function cannot be described to someone who can see "normally".
That said, if you can function without glasses, and only need them for driving, say 20/40 or so, I wouldn't do it. For me it was worth doing even if I didn't get 20/20 out of it since even 20/50 would have been a vast improvement.
Backbone prices are falling through the floor. T1s to the internet can be had for as little as $200/month in some areas. The telcos would love to be able artificially inflate backbone prices, but competition has driven the price down. ALL the high costs of boradband are in the last mile.
My understanding was that the time dilation effect was from a change in the rate of entropy related in some way to the change in mass. If that's so then you could speed up or slow down entropy, and hence the perceived passage of time, but you can't reverse it. I would think travel to the past would need to reverse entropy in some way. Or I could be wrong, physics class was a LONG time ago.
Go back and read the part 15 rules again (And the origional article, they point it out there). There are no squatters rights in part 15... He who was there first has no more claim on the use of the spectrum than the next people that show up. Everyone has to co exist.
The goal for commercial content protection has to be to stay ahead of the curve just enough to assure current profitability. They realize that sooner or later the copy protection WILL be broken. It's inevitable, even if it's a hundred years from now (but more likely less than one year), that any copy protection will be defeated and the content plastered across the Internet. But that doesn't matter to THIS year's balance sheet.
What's going on with the RIAA, MPAA, Etc. is the industry trying to stay ahead of that curve any way they can. They don't have to stop everyone, just most everyone and they do that by making it just difficult enough that most people won't bother. Like insurance, it's a numbers game.
I doubt things have changed much from when I was in school. Lunch, recess and every other activity was strictly by grade until high school. By then it's too late, paterns are set. How many HS seniors hang out with the freshmen?
Ah... Multi-variable equations. Pizza and Jolt. Next we'll be doing econometric modeling of coder utility functions.
I think the social interaction issue is a false argument. How much valid social interaction is there hanging around all day with a bunch of dopey kids your same age? I'd much rather see kids grow up interacting with people of all ages in all walks of life. Public school is an unnatural system created to churn out docile factory workers. Any well adjusted, educated people turned out at the end of twelve years is an accident and failure of the designed system, not a success. Of course the schools are turning out poorly educated people. Thats what they are designed to do.
Do you ever solve for an unknown quantity?
How many pizzas do I have to order to keep four programmers working through the night?
That's Algebra in a nutshell.
I use Algebra, Geometry, Trigonometry Statistics and yes even Calculus almost every day. Cost curves, margins, product pricing, queuing theory... it's all part of every day business life.
Poor math teaching in school ruins people's lives. I have to teach employees the basic math skills they need to do their jobs, and these are people with college degrees.
If you haven't read it, run, don't walk to Amazon and buy it now. Now that's my kind of "utopia". Government is a dirty word and everyone carries guns. They invented the internet in the 1800's.
Seriously, Smith has written over 20 books with libertarian themes carried to their logical conclusions. They aren't preachy, but darn good plots and good characters you can actually like.
Second place goes to anything by Heinlein.
Read about it here.
It was easy really. She designed the rings, had them made by a custom jewler and used a cubic zirconia for the stones. The personally designed rings mean a lot more to us than the stone. I can't tell the difference anyway. Don't buy into the diamond hype, but make sure she agrees. Don't do the zirconia and tell her it's a diamond.
Unemployment figures are calculated on the number of people actively looking for a job. People going to school, bumming around Europe, dropping a kid, finding themselves or jerking off are not a component of unemployment figures. They only count people who file at the state employment office and are actually looking for work. If anything the unemployment figures are understated. And yes, I am an economist. At least that what my degree says.
Last time I checked, a LASER isn't actually classified as a radio. We we're discussing RF burns, and while light is, of course, RF, it's not what we were talking about, which was Radio.
Also, I didn't say RF couldn't be focused. ALL RF can be focused, What I said was that 1 Watt wouldn't burn no matter how much it's focused. The statement was in relation to RADIO, not light or ionizing radiation.
I work with antennas all the time, I'm a licensed ham and I operate everything from HF to 10GHz. I know of what I speak.
What a troll! A 1 Watt radio burn, as if. 1 Watt will not burn no matter how much it's focused. As for a microwave oven, they use a hundreds or even a thousand Watts. That's how they heat food.
How about that nasty burn you get from a 60 Watt light bulb? Or have you ever watched toast burn in an oven? That's RF baby. Radiated heat is RF.
The cool thing is that thanks to the inverse square rule, the energy levels drop off pretty quick as you move away from the source. That why the light bulb is hot if you put your hand near it, but it's not from a few more inches away.
Perhaps you need to learn the difference between RF heating and ionizing radiation. One is dangerous, the other isn't any more deadly than a hot light bulb.
Wrong. I operate regularly on 1.2 and 2.4 GHz. I have a friend that runs at 10GHz. Hams are primary on 2.4. Here is a handy link that shows the ham bands.
Ham Spectrum Allocation
Microwave ovens aren't part 15 devices. They are licensed under different rules. I can always tell when someone down the street is defrosting dinner in the microwave because I get interference bands on my TV picture. That's NTSC TV on 2445MHz.
On every part 15 device are the words:
"This Device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received. Including interference that may cause undesired operation."
An otherwise legally operated part 15 device that causes interference to hams or any other primary user in that band is operating illegally and must shut down.
Oops, your ignorance is showing. Almost ALL advances in the radio arts in the last 100 years have come from amateur radio operators. We've been doing packet radio since before computer networks existed. Hams are on the cutting edge of microwave communications setting distance records of hundreds of miles in the 300GHz band. We've done spread spectrum for decades and several stations are actively experimenting with ultra wide band. We launch some of the most sophisticated communications satellites in orbit. We operate meteor scatter across the Continent.
Most HF rigs (the under 50MHz rigs) cost between $1000 and $4000 and are made by Kenwood, Icom and Yaesu. Top names in radio equipment. They use DSPs and speech filters that are years ahead of anything you'll find in consumer products. 2 meter and 70 cm rigs run between $150 and $500, even at Radio Shack.
Also Hams are critical emergency communication operators. When bad weather happens hams are out there acting as storm spotters and feeding information back to the National Weather Service. Nothing beats trained eyeballs on the spot. We provide communications when 911 systems go down and in disasters we provide the critical link that save lives.
Realize that the FCC is chartered to maintain the airwaves in trust for the American people and ask your selves who serves the people better, hams or 802.11 in Starbucks?
Then it needs to be changed, not ignored. If the legislature can manage to pass an ammendment eliminating the 2nd ammendment and three fourths of the states ratify it, then fine.
That won't happen, and the anti-gun people know it. That's why they're trying to back door it.