> I smell a startup about to try for some more funding!
I rather smell some pretty bad science in your post.
Near field component of an RF field can be either magnetic or electric: it depends from the source type (electric dipole vs. current loop) and its polarization. IIRC some useful discussion on the topic can be found here. The near field becomes negligible with respect to the propagating wavefield at a distance of a few wavelengths: if indeed they use 2.4 GHz for their device, either it isn't a near field device, or it does not work at 2.4 GHz.(I will resist to the temptation of posting my thoughts about the security of NFC technology here...)
I don't know where you found that water has a 2.4 GHz absorption band (Wikipedia ? ham radio literature ?!? I am curious...). To my knowledge water in the liquid state has a somehow broad absorption resonance at around 15 - 20 GHz. By the way, if water should resonate at 2.4 GHz, microwave ovens would burn meat on the surface, leaving the rest cooked rare! As a reference look at this paper: RF attenuation is easily estimated from real and imaginary parts of the dielectric constant.
Flesh is a lossy dielectric body, and cannot be approximated with a poorly conducting metal surface, as you do when you write "this largely comes down to thermal effects in the skin and other surface layers". RF absorption inside the human body cannot be neglected, except maybe in the spectrum window between far infrared and UV-B regions.
51 (no more a radio amateur, since when I wanted to become a physicist...).
Learning to use Windows is quite boring, so I used their invention to make the task most interesting. I scanned the textbook, but the system returned me a boring image, with the pixels of the very same colour. I guess it is suggesting me to think about the sky or the sea, but I do not understand why...
,,,I tracked NOAA and OSCAR satellites using a polar Earth map upon which I superimposed a orbit-shaped transparent ruler. I then used NASA data, Kepler's equations and a desk calculator to compute the right ascension of the orbits that crossed my reception zone, and I set the ruler accordingly. While I was receiving satellite data I had to read on the ruler the satellite position and move my antennas, while another ruler gave me the amount of Doppler correction. Doing all these tasks alltogether was messy, but it was one of the funniest and more rewarding things I ever did when I was involved with ham radio. I don't think that if I had a computer to automate everything, I would have enjoyed this that much...
The weak link of the chain is you. And they have very convincing methods to get what they want, especially if you have the habit of hiding your data in a suspicious way.
Given the performance of the on-die voltage regulator, the chip could very useful for designing miniature power supplies. Unfortunately the CPU and the associated digital crap ruin what seems to be a very succesful design of an innovative power supply regulator.
Now they will send to Slashdot a takedown notice to take down the message about the takedown request they sent to google to take down the list of their takedown requests....
If you apply a 20% reduction to the number of pentagon sides, it shrinks to a square. You can go further, and apply a 40% reduction so that it becomes a triangle. But if you apply a 60% cut the pentagon shrinks to a segment. As a consequence workers will find quite difficult to move along the only remaining hallway. The consequences of a 80% cut are left as an exercise to the reader. It should also be obvious that applying cuts that are not multiple of 20% will change the pentagon into a fractal shape, with unpredictable consequences over the productivity of people working inside.
I tried it on my car: I don't have a iPhone but an android smartphone, but I guess the results shouldn't be that different.
Consumption of bandwidth is huge and reception is crappy, since on my commuting path I don't have a reliable UMTS/GSM data coverage. Furthermore one hour of reception drains about 50% of the battery.
On the other side, my Sony shortwave receiver needs 4 AA cells every two weeks, and can pick up plenty of stations. Unfortunately BBC, Voice of America and other broadcasters are shutting down their shortwave facilities, since they claim that internet is the future...sigh.
Slashdot Mirror
Your system has only three safety switches! Be careful when using it...
> I smell a startup about to try for some more funding!
I rather smell some pretty bad science in your post.
Near field component of an RF field can be either magnetic or electric: it depends from the source type (electric dipole vs. current loop) and its polarization. IIRC some useful discussion on the topic can be found here. The near field becomes negligible with respect to the propagating wavefield at a distance of a few wavelengths: if indeed they use 2.4 GHz for their device, either it isn't a near field device, or it does not work at 2.4 GHz.(I will resist to the temptation of posting my thoughts about the security of NFC technology here...)
I don't know where you found that water has a 2.4 GHz absorption band (Wikipedia ? ham radio literature ?!? I am curious...). To my knowledge water in the liquid state has a somehow broad absorption resonance at around 15 - 20 GHz. By the way, if water should resonate at 2.4 GHz, microwave ovens would burn meat on the surface, leaving the rest cooked rare! As a reference look at this paper: RF attenuation is easily estimated from real and imaginary parts of the dielectric constant.
Flesh is a lossy dielectric body, and cannot be approximated with a poorly conducting metal surface, as you do when you write "this largely comes down to thermal effects in the skin and other surface layers". RF absorption inside the human body cannot be neglected, except maybe in the spectrum window between far infrared and UV-B regions.
51 (no more a radio amateur, since when I wanted to become a physicist...).
Be careful not to wear it upside down.
Learning to use Windows is quite boring, so I used their invention to make the task most interesting. I scanned the textbook, but the system returned me a boring image, with the pixels of the very same colour. I guess it is suggesting me to think about the sky or the sea, but I do not understand why...
I wonder if it could have been generated using the joke generator. Or maybe the slashdot post was generated by it as well. Or this post. Who knows ?!?
No, it is a data-defined software center.
...tell us about the NSA customization options that are shipped with the phone.
Thanks to NTSB, wardriving will get a completely different meaning...
,,,I tracked NOAA and OSCAR satellites using a polar Earth map upon which I superimposed a orbit-shaped transparent ruler. I then used NASA data, Kepler's equations and a desk calculator to compute the right ascension of the orbits that crossed my reception zone, and I set the ruler accordingly. While I was receiving satellite data I had to read on the ruler the satellite position and move my antennas, while another ruler gave me the amount of Doppler correction. Doing all these tasks alltogether was messy, but it was one of the funniest and more rewarding things I ever did when I was involved with ham radio. I don't think that if I had a computer to automate everything, I would have enjoyed this that much...
here, fixed for you.
It seems that Randall Munroe is obsessed not only with velociraptors, but also with sharks.
...and hire back Elop ?!?
This pen corrects grammar errors and comes from Germany, for sure it has been designed by a grammar nazi!!!
The weak link of the chain is you. And they have very convincing methods to get what they want, especially if you have the habit of hiding your data in a suspicious way.
...a few seconds to collapse!
There is a fourth solution: show a fixed clock: at least it will be 100% exact twice a day!
...or are they going to stop washing their uniforms ?!?
Given the performance of the on-die voltage regulator, the chip could very useful for designing miniature power supplies. Unfortunately the CPU and the associated digital crap ruin what seems to be a very succesful design of an innovative power supply regulator.
...why play with a simulation, when you can easily get the real thing ?
Now they will send to Slashdot a takedown notice to take down the message about the takedown request they sent to google to take down the list of their takedown requests....
I just finished cleaning my patio from pidgeon droppings, you insensitive clod!
...we will have a huge excess of network bandwidth. What could we do with it ?!?
So pilots will soon be able to fight staying at home, while Yahoo employees now must stay at their workplace.
If you apply a 20% reduction to the number of pentagon sides, it shrinks to a square. You can go further, and apply a 40% reduction so that it becomes a triangle. But if you apply a 60% cut the pentagon shrinks to a segment. As a consequence workers will find quite difficult to move along the only remaining hallway. The consequences of a 80% cut are left as an exercise to the reader. It should also be obvious that applying cuts that are not multiple of 20% will change the pentagon into a fractal shape, with unpredictable consequences over the productivity of people working inside.
rm -fR -u $USER /dev/eth0 should work.
I tried it on my car: I don't have a iPhone but an android smartphone, but I guess the results shouldn't be that different. Consumption of bandwidth is huge and reception is crappy, since on my commuting path I don't have a reliable UMTS/GSM data coverage. Furthermore one hour of reception drains about 50% of the battery.
On the other side, my Sony shortwave receiver needs 4 AA cells every two weeks, and can pick up plenty of stations. Unfortunately BBC, Voice of America and other broadcasters are shutting down their shortwave facilities, since they claim that internet is the future...sigh.