I don't think he meant that the loss of life would be equivalent to that of the Hiroshima event; rather that the blast intensity would be the same. There's a very large difference between a 15kT explosion at or near ground level vs one high in the atmosphere - witness the difference in loss of life between Hiroshima (15kT) and Tunguska (15MT) - 70k vs 2. Yes, the population density was vastly different, but the Tunguska blast is estimated to have been around 10-15 MT - 1000x the size of the Hiroshima blast.
#8 appeals to the art deco aficionado in me, and #12 is just beautiful. As others have pointed out, however, it is likely that neither of them will embroider particularly well.
The FCC is not necessarily always trustworthy, IMHO. They were scolded by a federal court when they tried to force adoption of BPL because they "...failed to satisfy the notice and comment requirements of the Administrative Procedure Act ('APA') by redacting studies on which it relied in promulgating the rule and failed to provide a reasoned explanation for its choice of the extrapolation factor for measuring Access BPL emissions." [ source ]
The long and short of this story is that the FCC wanted BPL deployed, and was (according to two federal judges) apparently willing to suppress factual data to 'get it done' regardless of the harm it would do to Amateur Radio - you remember those guys that provide emergency communications when the fancy trunked systems die in emergencies? Yeah, them.
The judges said (quoted from the above article) that "...the Commission redacted individual lines from certain pages on which it otherwise relied...there is little doubt that the Commission deliberately attempted to 'exclude [ ] from the record evidence adverse to its position'"
It wasn't wrong, per se, but there is (or at least was) a supposed 'rule' that eschews so-called 'dangling prepositions'. The rule forbids ending a sentence with a preposition, but that rule has fallen into desuetude over the years.
For the record, I was going for 'funny', not 'pedant'.
It doesn't say it's an end-fed mast radiator, although that's probably the most likely since there's a wacky pipe leading up the side to DC ground the center of it.
I'd bet the final amps are tube-based, so the high feed impedance isn't as big a deal as if they were solid state.
I agree that there's likely a matching network - I'd like to see the tube that can handle 120kV!
You're correct about it being a half-wavelength, but that has less to do with 'range' and more to do with matching the impedance of the antenna with that of the transmitter. An antenna that is a half wavelength and fed in the center is called a dipole, and typically presents an impedance of 50-80 ohms to the transmitter (with most of being purely resistive, one hopes). This arrangement would allow the station to omit a matching circuit, which would be enormous and costly for 2 MW of power.
That would be a great use, is you could overcome 2 issues:
1) That block of Gd148 would be thermally VERY HOT all the time.
2) Unless you could sequester the Gd148 in such a fashion that would render it unextractable, people would find a way to powder it and introduce it into other people's lungs/veins/digestive tracts. Alpha particles are stopped by you skin so they generally pose no threat unless they're ingested - alphas pounding away at lung tissue -- very rapid tumor development.
Those concerns don't apply when shooting a block of Gd148 into space (and onto Mars). Even if the rocket exploded during the launch, the block of Gd148 would either remain intact (safe), or be blown to bits and spread so thin as to be indistinguishable from background (safe).
One of the key issues is having power enough to heat them in the winter.
If the supposedly 'enlightened' greenies wouldn't raise a huge ruckus, the answer is to either alloy Gadolinium 148 into the frame or just have a block of it hanging around. It gives off a huge amount of heat, and essentially no radiation that would harm the rover (it's one of the few strong pure alpha-emitting isotopes).
A fascinating paper on powering medical implants with radionuclides states:
A ~0.2 kg block of pure Gd148 (~1 in^3) initially yields ~120 watts, sufficient in theory to meet the complete basal power needs of an entire human body for ~1 century (given suitable nucleochemical energy conversion and load buffering mechanisms, and a sufficiently well-divided structure).
Also from that paper, an amazingly small sphere of Gd 148 can power small implants:
Among all gamma-free alpha-only emitters with t1/2 > 10^6 sec, the highest volumetric power density is available using Gd148 (gadolinium) which a-decays directly to Sm144 (samarium), a stable rare-earth isotope. A solid sphere of pure Gd148 (~7900 kg/m3) of radius r = 95 microns surrounded by a 5-micron thick platinum shield (total device radius R = 100 microns) and a thin polished silver coating of emissivity er = 0.02 suspended in vacuo would initially maintain a constant temperature T2 (far from a surface held at T1 = 310 K) of [ 600 K ] with a 75-year half-life, initially generating 17 microwatts of thermal power which can be converted to 8 microwatts of mechanical power by a Stirling engine operating at ~50% efficiency.
At a bare minimum a NAVTEX message was sent warning of a rocket launch. Someone clever in the ways of google maps or google Earth care to map that polygon?
Ever wonder why there might be a 99.5 and a 99.7 on the FM dial, but never a 99.6? That's because of frequency separation. At the time the regulations were made, consumer radios couldn't reliably discern frequencies much finer.
Not quite. The 200 KHz separation is due to the massive bandwidth of the transmitted signal. A typical FM radio signal (in the US) uses 100 KHz of spectrum on either side of the center frequency - your station of 99.5 actually spans 99.4 to 99.6. Take a look at the image in that article; you can see just how many subcarriers and other signals are jammed in there. An all-digital signal would carry much more data in the same bandwidth, but the US uses a fairly wasteful, backwards-compatible mode called Ubiquity, marketed as HD Radio.
Understand that the area of Germany is smaller than that of each of our four largest states. Only four of our states and Washington, DC have population densities greater than Germany's average of 585.5 persons/square mile. The average US population density is only 80 persons/square mile.
I believe that such vast areas of low population density cause many of the problems we face with any sort of nation-wide service, be it commuter trains or 100% cellular coverage.
Yeah, what he said, plus they're using frequency-hopping, which if sequential might be used like a chirp signal in sonar to gather more information than would normally be available to a unifrequency pulse.
This thing emits a maximum of 0.0316 Watts, which is nearly 19 times less than a cell phone that no one thinks twice about using jammed 24x7 against the side of their brain.
This thing emits a maximum of 0.0316 Watts, which is nearly 19 times less than a cell phone that no one thinks twice about using jammed 24x7 against the side of their brain.
Slashdot Mirror
...wildly accelerated away in a hyperbole
How apropos - "wildly accelerated" is hyperbole. Oh you mean "hyperbola".
I don't think he meant that the loss of life would be equivalent to that of the Hiroshima event; rather that the blast intensity would be the same. There's a very large difference between a 15kT explosion at or near ground level vs one high in the atmosphere - witness the difference in loss of life between Hiroshima (15kT) and Tunguska (15MT) - 70k vs 2. Yes, the population density was vastly different, but the Tunguska blast is estimated to have been around 10-15 MT - 1000x the size of the Hiroshima blast.
#8 appeals to the art deco aficionado in me, and #12 is just beautiful. As others have pointed out, however, it is likely that neither of them will embroider particularly well.
The FCC is not necessarily always trustworthy, IMHO. They were scolded by a federal court when they tried to force adoption of BPL because they "...failed to satisfy the notice and comment requirements of the Administrative Procedure Act ('APA') by redacting studies on which it relied in promulgating the rule and failed to provide a reasoned explanation for its choice of the extrapolation factor for measuring Access BPL emissions." [ source ]
The long and short of this story is that the FCC wanted BPL deployed, and was (according to two federal judges) apparently willing to suppress factual data to 'get it done' regardless of the harm it would do to Amateur Radio - you remember those guys that provide emergency communications when the fancy trunked systems die in emergencies? Yeah, them.
The judges said (quoted from the above article) that "...the Commission redacted individual lines from certain pages on which it otherwise relied...there is little doubt that the Commission deliberately attempted to 'exclude [ ] from the record evidence adverse to its position'"
I'd love to know in what base 10.1 converts to 128.5 in decimal.
In general, 10.1 in any base x is x + 1/x.
Simplifying x + 1/x = 128.5 gives x^2 - 128.5x + 1 = 0 which yields (approximately) 0.0077826 and 128.49.
Thanks for giving me a reason to recall the quadratic equation!
It wasn't wrong, per se, but there is (or at least was) a supposed 'rule' that eschews so-called 'dangling prepositions'. The rule forbids ending a sentence with a preposition, but that rule has fallen into desuetude over the years.
For the record, I was going for 'funny', not 'pedant'.
You mean like a base-11 raster of 1's and 0's that forms a perfect circle ?
It doesn't say it's an end-fed mast radiator, although that's probably the most likely since there's a wacky pipe leading up the side to DC ground the center of it.
I'd bet the final amps are tube-based, so the high feed impedance isn't as big a deal as if they were solid state.
I agree that there's likely a matching network - I'd like to see the tube that can handle 120kV!
You're correct about it being a half-wavelength, but that has less to do with 'range' and more to do with matching the impedance of the antenna with that of the transmitter. An antenna that is a half wavelength and fed in the center is called a dipole, and typically presents an impedance of 50-80 ohms to the transmitter (with most of being purely resistive, one hopes). This arrangement would allow the station to omit a matching circuit, which would be enormous and costly for 2 MW of power.
Americunts like you lack the education required to understand the difference between the words you are so ignorant of.
Education indeed.
That would be:
Americunts like you lack the education required to understand the difference between the words of which you are so ignorant.
That would be a great use, is you could overcome 2 issues:
1) That block of Gd148 would be thermally VERY HOT all the time.
2) Unless you could sequester the Gd148 in such a fashion that would render it unextractable, people would find a way to powder it and introduce it into other people's lungs/veins/digestive tracts. Alpha particles are stopped by you skin so they generally pose no threat unless they're ingested - alphas pounding away at lung tissue -- very rapid tumor development.
Those concerns don't apply when shooting a block of Gd148 into space (and onto Mars). Even if the rocket exploded during the launch, the block of Gd148 would either remain intact (safe), or be blown to bits and spread so thin as to be indistinguishable from background (safe).
One of the key issues is having power enough to heat them in the winter.
If the supposedly 'enlightened' greenies wouldn't raise a huge ruckus, the answer is to either alloy Gadolinium 148 into the frame or just have a block of it hanging around. It gives off a huge amount of heat, and essentially no radiation that would harm the rover (it's one of the few strong pure alpha-emitting isotopes).
A fascinating paper on powering medical implants with radionuclides states:
A ~0.2 kg block of pure Gd148 (~1 in^3) initially yields ~120 watts, sufficient in theory to meet the complete basal power needs of an entire human body for ~1 century (given suitable nucleochemical energy conversion and load buffering mechanisms, and a sufficiently well-divided structure).
Also from that paper, an amazingly small sphere of Gd 148 can power small implants:
Among all gamma-free alpha-only emitters with t1/2 > 10^6 sec, the highest volumetric power density is available using Gd148 (gadolinium) which a-decays directly to Sm144 (samarium), a stable rare-earth isotope. A solid sphere of pure Gd148 (~7900 kg/m3) of radius r = 95 microns surrounded by a 5-micron thick platinum shield (total device radius R = 100 microns) and a thin polished silver coating of emissivity er = 0.02 suspended in vacuo would initially maintain a constant temperature T2 (far from a surface held at T1 = 310 K) of [ 600 K ] with a 75-year half-life, initially generating 17 microwatts of thermal power which can be converted to 8 microwatts of mechanical power by a Stirling engine operating at ~50% efficiency.
"Jaws, Mr. Bond must be cold after his swim. Place him where he can be assured of warmth."
any way the winblows.
Wouldn't that be punctuated like this:
Anyway, the Win _blows_.
At a bare minimum a NAVTEX message was sent warning of a rocket launch. Someone clever in the ways of google maps or google Earth care to map that polygon?
"Most likely into Okhotsk..."
Isn't that where they make kid's bib overalls?
Ever wonder why there might be a 99.5 and a 99.7 on the FM dial, but never a 99.6? That's because of frequency separation. At the time the regulations were made, consumer radios couldn't reliably discern frequencies much finer.
Not quite. The 200 KHz separation is due to the massive bandwidth of the transmitted signal. A typical FM radio signal (in the US) uses 100 KHz of spectrum on either side of the center frequency - your station of 99.5 actually spans 99.4 to 99.6.
Take a look at the image in that article; you can see just how many subcarriers and other signals are jammed in there. An all-digital signal would carry much more data in the same bandwidth, but the US uses a fairly wasteful, backwards-compatible mode called Ubiquity, marketed as HD Radio.
If the want the cadillac of uppers,they'd be taking Adrenochrome, which requires the adrenal glands from living donors.
Ok, not really.
They didn't use ASCII, they used Baudot.
Understand that the area of Germany is smaller than that of each of our four largest states. Only four of our states and Washington, DC have population densities greater than Germany's average of 585.5 persons/square mile. The average US population density is only 80 persons/square mile.
I believe that such vast areas of low population density cause many of the problems we face with any sort of nation-wide service, be it commuter trains or 100% cellular coverage.
I actually checked to see if 'v' and 'w' were different by only a single bit. * facepalm *
Yeah, what he said, plus they're using frequency-hopping, which if sequential might be used like a chirp signal in sonar to gather more information than would normally be available to a unifrequency pulse.
All right, how about this one:
This thing emits a maximum of 0.0316 Watts, which is nearly 19 times less than a cell phone that no one thinks twice about using jammed 24x7 against the side of their brain.
Is this a better analogy?
Sorry, wrong article.
All right, how about this one:
This thing emits a maximum of 0.0316 Watts, which is nearly 19 times less than a cell phone that no one thinks twice about using jammed 24x7 against the side of their brain.
Better?