You wouldn't mind, I wouldn't mind, but there are plenty of ignorant, selfish people out there.
Ive got family in Esperance - a very windy coastal town in Western Australia, 10's of thousands of residents. Most of the town's power comes from diesel generators, though there is a modest wind farm - one of the first major installation in WA.
In this day and age of environmental awareness and sensitivity, plenty of people still complain about the windmills. Stupid fucks.
2.4HGz WiFi will go through a wall or two, albeit with significant attenuation. Still, you'd probably want an Access point in each room just to cope with the numbers on connections.
Lets say 30 students/laptops + one AP, 30mW each. Total max radiation would be 930mW, though average levels would be much lower. The direct effect of microwaves is to cause heating in water, so this situation would be equivalent to shining a pocket torch at the classroom.
As for the radio/window issue - probably too much lead in the paint;)
The heart of the machine is some kind of electrode which uses energy from the fusion reaction itself to reinforce the electric field which is used to trigger the reaction
Nope. It's basically two electrodes - an outer and inner spherical or conical system. By applying a high voltage, electrons or positive ions are attracted towards the inner elecrode, where they get trapped, collide, or overshoot.
In simplified terms, some of the ions flying through/near the centre can have enough energy to undergo nuclear fusion.
As far as ive read, one of the big problem is the occasional collisions with the wires that form the electrodes. This wastes energy and causes decay. Future research involves "virtual" electrodes or magnetic sheilding.
There are some folks that are hopeful they can find a way to improve the efficiency of IEC fusion and exceed break-even (Robert Bussard, of Bussard ram-jet fame, for example), but no one's managed to actually demonstrate a working, energy-generating IEC yet.
Personally, I think these devices are far more likely to generate succes than the current breed of "tokamak" style reactors. They've had 20 years and upteen billion dollars, and still think it will take anotehr 20 years longer.
I for one think it's lucicrous (to the point of conspiracy), and if fusion can be generated so easily through these devices, then it is certainly worth more funding/research.
In computer games, especially quake 2, stereo sounds are represented by varying the volume of the sound in each speaker.
With echolocation, the received sound waves have very slight timing/phase differences due to the orientation of our head. Processing this requires significantly more skill, but use this all the time to locate the general direction of a noise source.
The new part about this finding is that we've never used it to provide accurate imaging before.
I am happy to pay for Intel stuff and have a stable system that works. And I love to giggle when people are struggling with their VIA or nVidia chipset motherboards. Should have bought the real stuff!
It's off topic,but anyway...
I used to feel the same way, however recently (3-4 months ago) bought an AMD system - Athlon XP, Asus A78VX Mobo (Via KT400 chipset) - it's been perfectly stable and I havent had any compatability issues. Im am more than happy with it, and it was far cheaper than intel.
It's the key ingredient in hemoglobin, without which, most human and animal life on Earth could not exist.
Strangely enough, Ive heard that most men have too much iron since they dont bleed very often and tend to eat more red meat. Aparantly men can benefit from regular blood donation to lower their levels.
Women on the other hand tend to bleed regularly (if you know what I mean) and eat less meat. They are generally are low on iron levels. So, give that frying pan to your wife/girlfriend to chew on.
Here in Australia, I could have gotten a medium grade dialup account for around A$20/month. Add to that the cost of local calls each time I wanted to use it, and that could easily add A$10 or A$15 a month. If I wanted to avoid disturbing my regular line, a second phone line would cost another A$20/month in rental.
Now, I've purchased a low end ADSL account - 256Kbit, 2GB uncapped, rate limited to 75kbit after that, for A$50/month.
So, for a small increase in price, I have myself a convenient, (mostly) always on, fast(er) connection. I can still use my phone whenever I want to, and I dont have to think about cost when I want to check something out for 5 minutes.
Whislt wireless (let's talk 802.11x here) is good for many application, it isnt the holy grail.
The equipment is getting cheaper, but the issue is spectrum. There's only so much data you can pump through the air at the moment - smarter equipment (eg Karlnet) or higher speed gear cost more money. Mesh networks are no better since all of those nodes have to share airtime/noise due to their omni antennas.
Give it a few years though, and things will certainly be looking better.
I agree completely, but I dont think much can be done about it.
There was discussion recently about the end-to-end connectivity of the internet making it vulnerable to this sort of thing. We may soon find/opt for firewalling at the major routers.
At the size of a BIC lighter, there's no reason why you couldnt stick half a dozen of these in your laptop case. 60 hours away from a store is much more impressive - potentially a whole week worth of usage.
For a short trip, you could even leave your AC adapter at home and save the extra weight.
In Australian airports, any sharp metal object is banned from carry on luggage. Nail clippers, pliers, you name it.
I find it frikking annoying passing through security these days - take off my steel cap boots, maybe my belt, unload my phone, wallet, change etc. Take the laptop out of the bag. Pass everything through the x-ray, walk through the detector, then re-assemble my belongings. It gives me the shits!
Stupid thing is, there's plenty of things inside the cabin which would make just as effective a weapon as pliers or clippers. I dont know who they are trying to keep safe...
None of the kenetic energy that isn't passed to the air is retained on the opposing stroke and its all lost as heat in the muscles
I doubt it. Plenty of that kinetic energy turns into potential energy - stored in the elasticity of the bones and tendons. Similarly for a mechanical ornithopter. Besides - we're talking low speeds here - kinetic energy isnt that big an issue.
Compared to propellers/fixed wings - what about all of the wasted energy with drag on the blades/airfoils? In addition, rotary craft (helicopters specifically) have big issues with reliability and complexity.
Im not trying to criticise fixed wing/rotary craft - they obviously work well for a variety of uses. Unfortunately, you speak about their supremacy as if it were gospel.
We can all benefit from thinking outside the square - and nature shows us some alternatives. We dont need to mimic birds and insects completely, but an understanding of the unstable aerodynamics produced with flapping flight can only help our development.
Re:Flight is one area NOT to copy nature in.
on
Studies In Ornithopters
·
· Score: 2, Interesting
flight using fixed wings wings far more efficient than flapping
Your proof is?
Wings may not be perfect, but they do a great job of some tasks - such as hovering - that fixed wing aircraft are lousy at.
If you read the article, it suggests small unmaned spy craft - where hovering is essential.
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You wouldn't mind, I wouldn't mind, but there are plenty of ignorant, selfish people out there.
Ive got family in Esperance - a very windy coastal town in Western Australia, 10's of thousands of residents. Most of the town's power comes from diesel generators, though there is a modest wind farm - one of the first major installation in WA.
In this day and age of environmental awareness and sensitivity, plenty of people still complain about the windmills. Stupid fucks.
2.4HGz WiFi will go through a wall or two, albeit with significant attenuation. Still, you'd probably want an Access point in each room just to cope with the numbers on connections.
;)
Lets say 30 students/laptops + one AP, 30mW each. Total max radiation would be 930mW, though average levels would be much lower. The direct effect of microwaves is to cause heating in water, so this situation would be equivalent to shining a pocket torch at the classroom.
As for the radio/window issue - probably too much lead in the paint
Problem is, your computer will sound like whales humping.
Those were my first thoughts too.
It's allready been done. See Cloudmark Spamnet.
Now...a free version would be even better.
AFAIK, the energy is carried away as the kinetic energy of a fast neutron.
These are bad, but a common part of environmental radiation.
The heart of the machine is some kind of electrode which uses energy from the fusion reaction itself to reinforce the electric field which is used to trigger the reaction
Nope. It's basically two electrodes - an outer and inner spherical or conical system. By applying a high voltage, electrons or positive ions are attracted towards the inner elecrode, where they get trapped, collide, or overshoot.
In simplified terms, some of the ions flying through/near the centre can have enough energy to undergo nuclear fusion.
As far as ive read, one of the big problem is the occasional collisions with the wires that form the electrodes. This wastes energy and causes decay. Future research involves "virtual" electrodes or magnetic sheilding.
There are some folks that are hopeful they can find a way to improve the efficiency of IEC fusion and exceed break-even (Robert Bussard, of Bussard ram-jet fame, for example), but no one's managed to actually demonstrate a working, energy-generating IEC yet.
Personally, I think these devices are far more likely to generate succes than the current breed of "tokamak" style reactors. They've had 20 years and upteen billion dollars, and still think it will take anotehr 20 years longer.
I for one think it's lucicrous (to the point of conspiracy), and if fusion can be generated so easily through these devices, then it is certainly worth more funding/research.
But then again, what do I know?
Or, they cool the air and form tiny droplets of condensation / dry ice
I was going to post a similar comment, but figured I couldn't be the only one who saw it.
Stuff the jumbling, I had to read that section several times to make sense of it.
In computer games, especially quake 2, stereo sounds are represented by varying the volume of the sound in each speaker.
With echolocation, the received sound waves have very slight timing/phase differences due to the orientation of our head. Processing this requires significantly more skill, but use this all the time to locate the general direction of a noise source.
The new part about this finding is that we've never used it to provide accurate imaging before.
I am happy to pay for Intel stuff and have a stable system that works. And I love to giggle when people are struggling with their VIA or nVidia chipset motherboards. Should have bought the real stuff!
It's off topic,but anyway...
I used to feel the same way, however recently (3-4 months ago) bought an AMD system - Athlon XP, Asus A78VX Mobo (Via KT400 chipset) - it's been perfectly stable and I havent had any compatability issues. Im am more than happy with it, and it was far cheaper than intel.
I briefly thought about supercavitation, but I dont think it is relevant in air.
Water is not elastic - low pressure regions cause the waster to cavitate (vaporise), thereby reducing drag. Air is elastic, and AfAIK cant cavitate.
It's the key ingredient in hemoglobin, without which, most human and animal life on Earth could not exist.
Strangely enough, Ive heard that most men have too much iron since they dont bleed very often and tend to eat more red meat. Aparantly men can benefit from regular blood donation to lower their levels.
Women on the other hand tend to bleed regularly (if you know what I mean) and eat less meat. They are generally are low on iron levels. So, give that frying pan to your wife/girlfriend to chew on.
Iron is one of the most common elements on the planet. There are *enourmous* resources of it - especially in north west Australia.
The downside is, it takes energy to process and AFAIK results in in pollutants.
That's because, like the CPU MHz wars, people are being sold "bandwidth", not "throughput"
You forgot one reason: convenience.
Here in Australia, I could have gotten a medium grade dialup account for around A$20/month. Add to that the cost of local calls each time I wanted to use it, and that could easily add A$10 or A$15 a month. If I wanted to avoid disturbing my regular line, a second phone line would cost another A$20/month in rental.
Now, I've purchased a low end ADSL account - 256Kbit, 2GB uncapped, rate limited to 75kbit after that, for A$50/month.
So, for a small increase in price, I have myself a convenient, (mostly) always on, fast(er) connection. I can still use my phone whenever I want to, and I dont have to think about cost when I want to check something out for 5 minutes.
Im happy, regardless of what usage I had planned.
Whislt wireless (let's talk 802.11x here) is good for many application, it isnt the holy grail.
The equipment is getting cheaper, but the issue is spectrum. There's only so much data you can pump through the air at the moment - smarter equipment (eg Karlnet) or higher speed gear cost more money. Mesh networks are no better since all of those nodes have to share airtime/noise due to their omni antennas.
Give it a few years though, and things will certainly be looking better.
I agree completely, but I dont think much can be done about it.
There was discussion recently about the end-to-end connectivity of the internet making it vulnerable to this sort of thing. We may soon find/opt for firewalling at the major routers.
How about a bit of both - CO2 gas + water
so I don't walk around with flammables in my pockets all day
About as flamable as a tiny plastic vodka bottle. If they'd used ethanol instead of methanol, you could even drink it.
At the size of a BIC lighter, there's no reason why you couldnt stick half a dozen of these in your laptop case. 60 hours away from a store is much more impressive - potentially a whole week worth of usage.
For a short trip, you could even leave your AC adapter at home and save the extra weight.
Now....i just hope the refills are cheap.
In Australian airports, any sharp metal object is banned from carry on luggage. Nail clippers, pliers, you name it.
I find it frikking annoying passing through security these days - take off my steel cap boots, maybe my belt, unload my phone, wallet, change etc. Take the laptop out of the bag. Pass everything through the x-ray, walk through the detector, then re-assemble my belongings. It gives me the shits!
Stupid thing is, there's plenty of things inside the cabin which would make just as effective a weapon as pliers or clippers. I dont know who they are trying to keep safe...
None of the kenetic energy that isn't passed to the air is retained on the opposing stroke and its all lost as heat in the muscles
I doubt it. Plenty of that kinetic energy turns into potential energy - stored in the elasticity of the bones and tendons. Similarly for a mechanical ornithopter. Besides - we're talking low speeds here - kinetic energy isnt that big an issue.
Compared to propellers/fixed wings - what about all of the wasted energy with drag on the blades/airfoils? In addition, rotary craft (helicopters specifically) have big issues with reliability and complexity.
Im not trying to criticise fixed wing/rotary craft - they obviously work well for a variety of uses. Unfortunately, you speak about their supremacy as if it were gospel.
We can all benefit from thinking outside the square - and nature shows us some alternatives. We dont need to mimic birds and insects completely, but an understanding of the unstable aerodynamics produced with flapping flight can only help our development.
flight using fixed wings wings far more efficient than flapping
Your proof is?
Wings may not be perfect, but they do a great job of some tasks - such as hovering - that fixed wing aircraft are lousy at.
If you read the article, it suggests small unmaned spy craft - where hovering is essential.