I agree. Stopping spam via code can and will be circumvented.
We need to stop spam legally and politically. Instead of targeting the spammers, target the companies that utilise it. If it were illegal to advertise your product via spam, there would be no market for it. It cant really be circumvented - somehow there has to be a link to the product/company in the email.
"will" is a stong word, and if so it's not from "radiation inside". It's not called a black hole for nothing.
It's theorised that particle/antiparticle pairs which spontanously form out of the quantum soup can interact with black holes. When they form on the edge of the event horizon, one particle can get sucked in, and and it's twin left outside. The remaining particle streams off, and the energy required to satisfy conservation of energy is gained from the black hole.
The wiki article isnt that usefull, but it is one the right track.
Regular concrete (with portland cement) requires water to set - it uses H2O in many steps of a chemical reaction.
The best way to make a strong concrete foundation is to spray or flood the freshly finished area with water - this ensures that the concrete sets a bit slower and gets enough water for it's chemical reactions. You can make concrete harden a bit faster by having less water around, but it ends up being weak and powdery if you go too far.
The only issue with water during concrete setting is if you agitate the material too much - the water dilutes the cement and everything just turns to mush.
On several occasions whilst my mates and I have been doing WiFi surveys with handheld dish antennas. (seeing where we can connect to our own gear), old people have come up and abused us for "eavesdropping". Yeah, real tinfoil hat type stuff.
That said, making it looks like (and named after) a rifle is idiotic.
Yes, and that would be due to heating. As as said, 30mW of microwave energy is very little , especially as power reduces rapidly over distance (inverse square relationship)
I guess the main point is that microwaves are classified as "non-ionising" radiation. That is, they dont contain enough energy to break mollecular bonds, thus our cells are generally safe from damage and mutation. The only non-ionising radiation which we know causes problems is ultraviolet.
So, the main effect of radio waves is heating, and at 30mW per device spread out over a room, it's pretty weak.
Before you get too paranoid, radio and microwaves have less energy than visible light, and when outside you are getting hammered by 1000W per square metre.
I brought up the same issue when someone mentioned using existing gear for mesh networks.
I hope that the 802.11s spec is clever enough to account for this fundamental issue - multiple on-chip radios would solve it - allowing users to be a part of several physically overlapping but channel separated cells.
Mesh networks using 802.11b/g equipment have fundamental issues...namely they can only really operate on a single channel, thus share bandwidth. In that sense, they scale badly.
You can get around this by having multiple antennas/radios, but that gets expensive.
What if your stable, CLOSED BIOS has some nice hooks that feed data back to the FBI headquaters or something. Or maybe it kills kittens? Wont somebody please think of the kittens!
but a hand dynamo cant put out 3 watts all day whilst your'e not there. Leave a wind turbine setup overnight and you have a respectable amount of power.
The only truely renewable energy source available is the sun.
And where do you think oil comes from? Oil is nature's solar battery - plants producing carbohyrdates from sunlight, air and water. If we boost the production of oil from growing the plants ourselves, then I dont see a problem.
Even AM uses spectrum. A single frequency that modulates up and down (AM) can be treated as a superposition of multiple frequencies - the carrier and the data. No matter how you do it, you always end up with sidebands (data) that consume extra bandwidth.
Umm...kerosene is a petroleum product. Add to that, most hydrogen production comes from natural gas decomposition.
Then, liquid oxygen is made in cryogenic plants that require electricity for compresors, and chances are thet energy comes from a fossil fuel powered station.
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I agree. Stopping spam via code can and will be circumvented.
We need to stop spam legally and politically. Instead of targeting the spammers, target the companies that utilise it. If it were illegal to advertise your product via spam, there would be no market for it. It cant really be circumvented - somehow there has to be a link to the product/company in the email.
Just to feed the troll some more....
How is it acceptable to be sitting at work and recieve pornographic SPAM selling sex sites, penis enlargement and viagra?
You might want junk mail, but it seems that the majority of us dont.
An SSL certificate is not a lock on the front door. It provides secure transmission, not authentication.
Have a think about that for a moment and you'll realise what the parent poster is saying.
With concentric rings, each band of mirrors share the same angle.
With a solid row, you'd have to adjust the angle for every one individually. Sounds like hard work to me.
That right. Something that didnt work the first time will never, ever get better.
"will" is a stong word, and if so it's not from "radiation inside". It's not called a black hole for nothing.
It's theorised that particle/antiparticle pairs which spontanously form out of the quantum soup can interact with black holes. When they form on the edge of the event horizon, one particle can get sucked in, and and it's twin left outside. The remaining particle streams off, and the energy required to satisfy conservation of energy is gained from the black hole.
The wiki article isnt that usefull, but it is one the right track.
Regular concrete (with portland cement) requires water to set - it uses H2O in many steps of a chemical reaction.
The best way to make a strong concrete foundation is to spray or flood the freshly finished area with water - this ensures that the concrete sets a bit slower and gets enough water for it's chemical reactions. You can make concrete harden a bit faster by having less water around, but it ends up being weak and powdery if you go too far.
The only issue with water during concrete setting is if you agitate the material too much - the water dilutes the cement and everything just turns to mush.
It's not just gun like things...
On several occasions whilst my mates and I have been doing WiFi surveys with handheld dish antennas. (seeing where we can connect to our own gear), old people have come up and abused us for "eavesdropping". Yeah, real tinfoil hat type stuff.
That said, making it looks like (and named after) a rifle is idiotic.
Wow, someone who truly could benefit from a tinfoil hat....
Yes, and that would be due to heating. As as said, 30mW of microwave energy is very little , especially as power reduces rapidly over distance (inverse square relationship)
I guess the main point is that microwaves are classified as "non-ionising" radiation. That is, they dont contain enough energy to break mollecular bonds, thus our cells are generally safe from damage and mutation. The only non-ionising radiation which we know causes problems is ultraviolet.
see this site for a good summary.
So, the main effect of radio waves is heating, and at 30mW per device spread out over a room, it's pretty weak.
Before you get too paranoid, radio and microwaves have less energy than visible light, and when outside you are getting hammered by 1000W per square metre.
I brought up the same issue when someone mentioned using existing gear for mesh networks.
I hope that the 802.11s spec is clever enough to account for this fundamental issue - multiple on-chip radios would solve it - allowing users to be a part of several physically overlapping but channel separated cells.
Mesh networks using 802.11b/g equipment have fundamental issues...namely they can only really operate on a single channel, thus share bandwidth. In that sense, they scale badly.
You can get around this by having multiple antennas/radios, but that gets expensive.
The point is, it could have just as easily been a rocket booster installed upside down or an accelerometer installed the wrong way...
Oh, I take that last one back, it allready happened.
and that makes it *so* much better.....
I agree. Did you see the claims that "This allows a 10x larger surface area of these structures to be used to achieve a 10x increase in efficiency"
What if your stable, CLOSED BIOS has some nice hooks that feed data back to the FBI headquaters or something. Or maybe it kills kittens? Wont somebody please think of the kittens!
and in the end we need to have faith in the self-regulation of corporations.
Bullshit. The best solution is to threaten the CEO with jail time. That really stirs things up.
but a hand dynamo cant put out 3 watts all day whilst your'e not there. Leave a wind turbine setup overnight and you have a respectable amount of power.
The only truely renewable energy source available is the sun.
And where do you think oil comes from? Oil is nature's solar battery - plants producing carbohyrdates from sunlight, air and water. If we boost the production of oil from growing the plants ourselves, then I dont see a problem.
It might seem pedantic, but this is a silly error for a science article. Nowhere do they actually specify how much energy was released.
"watts" is a measure of power - you need to multiply it by a duration to get "energy" (eg joules).
I would think our steps are only controlled when they need to be. Walking on level ground, we're just using passive dynamics.
Even AM uses spectrum. A single frequency that modulates up and down (AM) can be treated as a superposition of multiple frequencies - the carrier and the data. No matter how you do it, you always end up with sidebands (data) that consume extra bandwidth.
There won't be any WiMax-equipped notebooks anyway, since the antenna is too big
Umm, how do you figure that?
Antenna size is related to frequency and gain. High frequency = smaller antenna, high gain = larger antenna.
So, for a low gain 3.5 to 5GHz antenna, it could be as small as a 2cm loop on printed circuit board, mych like cuurrent 2.4GHz wifi antennas are now.
Umm...kerosene is a petroleum product. Add to that, most hydrogen production comes from natural gas decomposition.
Then, liquid oxygen is made in cryogenic plants that require electricity for compresors, and chances are thet energy comes from a fossil fuel powered station.