I have it on good authority that the photograph in question is not the wily Rubidium atom, but the lazy and commonplace Strontium atom. You can tell by the interference pattern.
This is similar to how you sometimes hear VHF FM Radio across multiple states - most of the power "escapes" into space but enough bends around the earth that it can be heard on the ground.
I'm an Amateur Radio operator and understand the concepts of tropospheric ducting and other propagation-related phenomena. You can't rely of any propagation mode other than line-of-sight at VHF or UHF frequencies. Even one of my favorite ham bands, 10m (~30 MHz) is slavishly reliant on the Sun for propagation. Right now it's dead as a doornail. When the Sun is in high gear, I've talked to other hams in Russia on 25W while I was driving down I-64.
Your supposition of iPads needing 18dB antennas is specious (although 18dB gain at sufficiently high frequencies is easy) - look at your average cell phone. It puts out <= 600 mW and the antenna likely has negative gain, but I can still be 'heard' by cell sites 20+ miles away. Antenna gain is reciprocal - if an antenna has 18dB gain on transmit, it also has the same gain on receive.
For another example, look at space probes. The Voyager probes have relatively large antennas and rather meager transmitters, but by using the enormous dish antennas here on Earth we can still hear them over 17.2 x10^9 km.
If you want to look into weak signal modes and propagation at HF, check out http://wsprnet.org/drupal/wsprnet/spots . We are doing other-side-of-the-world comms using much less than 1 Watt ERP.
Both of you are correct to an extent. For high VHF and UHF frequencies, the propagation is fairly close to line-of-sight. That means that no amount of power will force RF to penetrate the earth beyond your radio horizon.
That said, receivers need a certain signal level to work properly. Until that level is exceeded at every point inside the radio horizon, additional power will help receivers that aren't seeing their minimum signal level. Once that level is reached for all points inside the radio horizon, additional power will not increase reception distance.
You've just agreed with the AC. I looked at the FCC datafor WPMT - they are transmitting with 933 kW ERP, with ERP being the important difference - that stands for Effective Radiated Power, which takes antenna gain into account. The AC stated that using lower transmitter power coupled with large antennas on the tower are sufficient. I submit that WPMT is using a relatively high gain antenna to obtain the 933 kW ERP. This site says they have a transmitter putting out 20.2 kW with an 18.22 dB gain antenna.
As you said, the cooling systems are the weak link - why use bunker busters (and risk universal condemnation) when dropping a few tons of quick-dry cement into the intake would do?
To add insult to injury, precede the cement drop with a few gazillion gallons of some horrid corrosive - corrode the heck out of the primary/secondary heat exchanger and the pump internals, then deny the reactor coolant with the cement. Bad times all around.
Why allow it to be buried? Why not design it to float on the magma, antenna up, sensors down. It would be pretty easy to do, since magma is very dense.
High power electronic components are already made from/with SiC. Gallium nitride has taken over the LED market from SiC, but it's still used. The problem with defects they note in the SiC article are probably too great to manage across a typical CPU-sized wafer.
The guys on that new TV show "Swamp People" use a.22 on the normal size ones, and a.22 magnum on the really big ones. It's usually one shot to the back of the head, right at the 'neck' line. Instant kill, it seems.
My designated ground hog gun is a Remington 700 BDL VSSF in.22-250 - fluted stainless steel bull barrel, aluminum bedding block, recessed barrel exit, light trigger pull, and a 32x 1/8th MOA scope. Head shots at 450 yds with handloads. Very effective medicine for ground hogs.
While I agree with your rant pitting electricity against fossil fuels, there are other compression ignition- and spark ignition- compatible fuels that are made from plant-based (hence renewable) resources.
I don't advocate using food crops for fuel, but cellulosic ethanol would be better than gasoline.
My hope is for nuclear energy based on integral fast breeder reactors. Clean, efficient, and the waste is 'hot' for a tiny fraction of our current wasteful once-through designs.
reprocessing produces enriched plutonium which had little or no use other than making nuclear bombs.
Make that: reprocessing at that time produced enriched plutonium which had little or no use in the reactor designs at that time other than making nuclear bombs.
Read up on IFRtechnology: reprocessing makes no bomb-useful fuel, and the leftovers are only dangerous for 100's of years vs 10's of thousands. Oh yeah, and it uses nearly all of the energy in the fuel.
If you curve up the last 1/10th mile of the track in a circular shape with the end of the track at a 30 degree angle to the ground, you'll pull just shy of 24 g's transiting the curved part at 600 MPH (=880 fps) for 0.6 sec. The end of the track would be 135 ft in the air.
Assuming the highest safe track height to be 200 feet, you'd have to curve the last 782 ft of track, which would exert 16 g's for a 0.89 second.
If you curved the last mile up at 30 degrees (assuming you could make 600 MPH in the first mile), you'd only get 2.39 g's for 6 sec, but the track would be a whopping 1351 feet in the air!
Naturally higher angles would be worse - if you wanted to go straight up, the last 1/10th mile scenario would result in 72 g's for 0.6 sec and a ramp height of 336 ft.
AT&T's microcell uses your broadband connection to extend their coverage and has a GPS to validate that you're using it in an 'approved area'. Also, calls don't transfer in, so you'll lose calls as you approach your house. No thanks.
"AT&T 3G MicroCell acts like a mini cellular tower in your home or small business environment. It connects to AT&T's network via your existing broadband Internet service (such as U-verse, DSL or cable) and is designed to support up to four simultaneous users in a home or small business setting."
Also,
"Calls transfer out, but don't transfer in. Calls seamlessly transfer from the 3G MicroCell to the strongest available AT&T cell tower signal. However, calls connected on the cell tower do not transfer to the 3G MicroCell."
Check out this article that describes thermal runaway in parallel strings of series-connected LEDs due to Vf variation.
Suppose you have designed a 2 LED series circuit (Vf = 3V, If = 100mA) to run off 12VDC. You'd use a 60 Ohm resistor [ (Vcc - Vftotal) / If ]. Now assume that one of the LEDs has a Vf of 2V instead of 3V. The current becomes [ (Vcc - Vftotal) / 60 ], which is now 116.67 mA. Not good.
Since LEDs act as any other diode, the current rises very quickly once Vf is exceeded.
I don't know of any religion that is against ADULT stem cells or cord blood cells. The ones that are harvested from embryos, yes, but adult and cord cells are no problem.
You don't get that the argument is terminating a life to harvest embryonic cells, I take it?
This means that you can put a bunch of them in series without any current limiting resistor (or wire or battery internal resistance) and the current will be limited.
This works right up until you have one LED with sufficiently lower Vf than the others. It draws more current and heats up, drawing more current, etc, until thermal runaway!!!
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I have it on good authority that the photograph in question is not the wily Rubidium atom, but the lazy and commonplace Strontium atom. You can tell by the interference pattern.
['tis a joke, for the humor-impaired]
This is similar to how you sometimes hear VHF FM Radio across multiple states - most of the power "escapes" into space but enough bends around the earth that it can be heard on the ground.
I'm an Amateur Radio operator and understand the concepts of tropospheric ducting and other propagation-related phenomena. You can't rely of any propagation mode other than line-of-sight at VHF or UHF frequencies. Even one of my favorite ham bands, 10m (~30 MHz) is slavishly reliant on the Sun for propagation. Right now it's dead as a doornail. When the Sun is in high gear, I've talked to other hams in Russia on 25W while I was driving down I-64.
Your supposition of iPads needing 18dB antennas is specious (although 18dB gain at sufficiently high frequencies is easy) - look at your average cell phone. It puts out <= 600 mW and the antenna likely has negative gain, but I can still be 'heard' by cell sites 20+ miles away. Antenna gain is reciprocal - if an antenna has 18dB gain on transmit, it also has the same gain on receive.
For another example, look at space probes. The Voyager probes have relatively large antennas and rather meager transmitters, but by using the enormous dish antennas here on Earth we can still hear them over 17.2 x10^9 km.
If you want to look into weak signal modes and propagation at HF, check out http://wsprnet.org/drupal/wsprnet/spots . We are doing other-side-of-the-world comms using much less than 1 Watt ERP.
Both of you are correct to an extent. For high VHF and UHF frequencies, the propagation is fairly close to line-of-sight. That means that no amount of power will force RF to penetrate the earth beyond your radio horizon.
That said, receivers need a certain signal level to work properly. Until that level is exceeded at every point inside the radio horizon, additional power will help receivers that aren't seeing their minimum signal level. Once that level is reached for all points inside the radio horizon, additional power will not increase reception distance.
You've just agreed with the AC. I looked at the FCC data for WPMT - they are transmitting with 933 kW ERP, with ERP being the important difference - that stands for Effective Radiated Power, which takes antenna gain into account. The AC stated that using lower transmitter power coupled with large antennas on the tower are sufficient. I submit that WPMT is using a relatively high gain antenna to obtain the 933 kW ERP. This site says they have a transmitter putting out 20.2 kW with an 18.22 dB gain antenna.
Not just that part of the world. I've seen my share of "Remember 1066" shirts at Celtic festivals.
http://en.wikipedia.org/wiki/Battle_of_Hastings
As you said, the cooling systems are the weak link - why use bunker busters (and risk universal condemnation) when dropping a few tons of quick-dry cement into the intake would do?
To add insult to injury, precede the cement drop with a few gazillion gallons of some horrid corrosive - corrode the heck out of the primary/secondary heat exchanger and the pump internals, then deny the reactor coolant with the cement. Bad times all around.
Why allow it to be buried? Why not design it to float on the magma, antenna up, sensors down. It would be pretty easy to do, since magma is very dense.
High power electronic components are already made from/with SiC. Gallium nitride has taken over the LED market from SiC, but it's still used. The problem with defects they note in the SiC article are probably too great to manage across a typical CPU-sized wafer.
The guys on that new TV show "Swamp People" use a .22 on the normal size ones, and a .22 magnum on the really big ones. It's usually one shot to the back of the head, right at the 'neck' line. Instant kill, it seems.
My father has a 45 Long Colt/.410 combo barrel on his Thompson Contender. He loves that thing.
Secondly, it's a movie gimmick popularized by the Max Payne movie.
I wondered why I saw so many of those things at a recent gun show! They're very heavy, too.
My designated ground hog gun is a Remington 700 BDL VSSF in .22-250 - fluted stainless steel bull barrel, aluminum bedding block, recessed barrel exit, light trigger pull, and a 32x 1/8th MOA scope. Head shots at 450 yds with handloads. Very effective medicine for ground hogs.
a) DHCP is been defeated using hardware removers for a long time already
All you have to do to 'defeat' DHCP is to use a static IP address.
"He who controls The Spice controls the Universe" -- Paul "Muad'Dib" Atreides
And why electricity instead of fossil fuels?
While I agree with your rant pitting electricity against fossil fuels, there are other compression ignition- and spark ignition- compatible fuels that are made from plant-based (hence renewable) resources.
I don't advocate using food crops for fuel, but cellulosic ethanol would be better than gasoline.
My hope is for nuclear energy based on integral fast breeder reactors. Clean, efficient, and the waste is 'hot' for a tiny fraction of our current wasteful once-through designs.
Then they walk into a church and are turned away by the priest. He says, "No mass for you."
I'm not angry with you at all - I read your entire post and we agree that reprocessing should be researched. I apologize if I came across as angry.
I put the links in for others to see what we're talking about.
Have a good weekend!
reprocessing produces enriched plutonium which had little or no use other than making nuclear bombs.
Make that: reprocessing at that time produced enriched plutonium which had little or no use in the reactor designs at that time other than making nuclear bombs.
Read up on IFR technology: reprocessing makes no bomb-useful fuel, and the leftovers are only dangerous for 100's of years vs 10's of thousands. Oh yeah, and it uses nearly all of the energy in the fuel.
If you curve up the last 1/10th mile of the track in a circular shape with the end of the track at a 30 degree angle to the ground, you'll pull just shy of 24 g's transiting the curved part at 600 MPH (=880 fps) for 0.6 sec. The end of the track would be 135 ft in the air.
Assuming the highest safe track height to be 200 feet, you'd have to curve the last 782 ft of track, which would exert 16 g's for a 0.89 second.
If you curved the last mile up at 30 degrees (assuming you could make 600 MPH in the first mile), you'd only get 2.39 g's for 6 sec, but the track would be a whopping 1351 feet in the air!
Naturally higher angles would be worse - if you wanted to go straight up, the last 1/10th mile scenario would result in 72 g's for 0.6 sec and a ramp height of 336 ft.
That's rather eloquently called Sparking the Vacuum.
So there's red, green, and blue pixels giving you light, and a fourth pixel which is a sensor that will capture stuff ...
Add a fifth pixel to burn stuff up, lift airplanes, and kill the professor from Gilligan's Island, and you've got an Interocitor.
AT&T's microcell uses your broadband connection to extend their coverage and has a GPS to validate that you're using it in an 'approved area'. Also, calls don't transfer in, so you'll lose calls as you approach your house. No thanks.
From this page:
"AT&T 3G MicroCell acts like a mini cellular tower in your home or small business environment. It connects to AT&T's network via your existing broadband Internet service (such as U-verse, DSL or cable) and is designed to support up to four simultaneous users in a home or small business setting."
Also,
"Calls transfer out, but don't transfer in. Calls seamlessly transfer from the 3G MicroCell to the strongest available AT&T cell tower signal. However, calls connected on the cell tower do not transfer to the 3G MicroCell."
Check out this article that describes thermal runaway in parallel strings of series-connected LEDs due to Vf variation.
Suppose you have designed a 2 LED series circuit (Vf = 3V, If = 100mA) to run off 12VDC. You'd use a 60 Ohm resistor [ (Vcc - Vftotal) / If ]. Now assume that one of the LEDs has a Vf of 2V instead of 3V. The current becomes [ (Vcc - Vftotal) / 60 ], which is now 116.67 mA. Not good.
Since LEDs act as any other diode, the current rises very quickly once Vf is exceeded.
I don't know of any religion that is against ADULT stem cells or cord blood cells. The ones that are harvested from embryos, yes, but adult and cord cells are no problem.
You don't get that the argument is terminating a life to harvest embryonic cells, I take it?
This means that you can put a bunch of them in series without any current limiting resistor (or wire or battery internal resistance) and the current will be limited.
This works right up until you have one LED with sufficiently lower Vf than the others. It draws more current and heats up, drawing more current, etc, until thermal runaway!!!