Additionally, MRI scans do not involve ionizing radiation. They rely on detecting tiny rotating magnetic fields from the realignment of the spin axis of protons manipulated by bursts of RF energy in a massive magnetic field.
Yes, and such annihilations of electrons+positrons produce characteristic burstsof gamma radiation with energy 511 keV when both particles have relatively low energy. The energy of each photon (two are always emitted; gotta conserve energy and momentum!) is equivalent to the rest mass of an electron * c^2.
Proton/anti-proton annihilation results in a gamma ray of energy 938 MeV.
You are correct. I should've known that; I'm an old unix user from way back. I learned about raw vs canonical in my UUCP days.
The whole ^H, ^W meme has more to do with how actual terminals used to work than with those quaint ascii control codes.
The reason old terminals worked that way was because of those 'quaint' control codes.
Since you brought that up, I'd like to see a resurgence of control codes. You know all the trouble using 'in-band' printable characters to denote special functions like grouping, field separation, etc? The whole issue of quotes and commas in the data in a CSV file, for instance, or a single quote in an SQL statement literal? Those old coots that developed bisync had this figured out - they had codes for start of text, end of text, start of header, etc. I propose we start using the old control codes for that. Give them a glyph that's similar to the character used currently (for instance replace the use of quoting with the ASCII character STX (Start of Text) and give it an inverse video " appearance). That way you never have to deal with figuring out what characters have special meaning and which are data.
You could do the same thing with XML - no more '<' to open a tag. Instead use an old ctrl code (SOH?) with a similar glyph.
You're mixing ASCII control codes with bash readline key mappings. ^W in bash is "unix-word-rubout (C-w)". ^W in ASCII is ETB - End of Transmission Block.
Re:"Machine-guns for Algernon"
on
Muscle Mice
·
· Score: 1
...the obscure episode of 6 Million Dollar Man with William Shatner on this exact theme.
This pops up every once in a while. Seen it myself.
It's an airliner leaving a contrail that's being lit by the setting sun. It appears to be going straight up because it's coming straight towards the observer from over the horizon.
If we had a time, direction, and location of the viewpoint it would not be difficult to determine which flight it was.
The contrail more than likely also shows on satellite weather imagery.
As many of us here know who have observed known missile launches, this thing is moving WAAAAAAAAY too slow.
But they can't land for squat. I watched one come in for a landing while hunting, and I must say that had to hurt - he hit the ground and proceeded to blast through some underbrush like a bowling ball.
If I were a content provider whose HTML was being modified in-flight, I'd invoke a law that already exists for that sort of thing - it's called copyright. My customer requested information from me; I provided it, and as such it is automatically copyrighted. Any modification in transit without authorization is illegal already, IMHO.
What happens when I request data from a web service for the lowest price for an item from pricegrabber and some intermediate ISP decides to replace the real answer with the price of one of their paid sponsors?
I would also like to see movie directors/etc go after broadcasters that place those obnoxious network 'bugs' into the content stream of the movie. They're altering the movie for monetary gain.
I had a college professor that insisted on using nanofarads back when no one had ever heard of such a thing. he was a physicist and naturally had no respect for established norms in electronics. Back then they were just beginning to use uF and pF vs mF for microfarad and mmF for picofarad.
What's with the apparent fascination with spheres? Wouldn't they be a lot harder to make 'perfect' than a cube, say? I could easily devise 'perfectly' parallel plates down to a wavelength of light, but how would you easily determine that a sphere were perfectly round?
In the US we have single split-phase power delivered to most homes. We have a transformer that converts distribution voltage (19,900V in my neighborhood) to a 120V/240V secondary. We can either have 120V or 240V circuits, depending on the load. The power is delivered to a breaker box where the breaker positions alternate which phase they're on. That way two adjacent 120V breakers are on different phases (for load balancing), but a double-side 240V breaker uses both legs.
Slashdot Mirror
...mark 12 to 15...
Do you mean Mach 12 to 15, perhaps?
This is a classic example of a Tiller's Rule violation.
I expect 1 unladen train...
Do you expect an African or European train?
Hungary: Toxic red sludge has reached the [Blue] Danube
So now we have the Purple Danube? Is Prince performing it?
Actually it might. This is a sigint/comint bird.
You can keep tabs what orbital slot it ends up in by watching the seesat-l mailing list that Ted Molczan contributes to.
Are you redarded?
No, he just has a head cold.
There are both terahertz scanners and X-ray backscatter scanners. The THz scanners are likely more safe than the X-ray ones, however there is at least one proposed mechanism for THz radiation to damage DNA.
Additionally, MRI scans do not involve ionizing radiation. They rely on detecting tiny rotating magnetic fields from the realignment of the spin axis of protons manipulated by bursts of RF energy in a massive magnetic field.
Except that those fuels are already being recycled into soil, then grass, then more cattle.
Were you referring to the manure or the nuclear fuel? They're both "recycled into soil, then grass, then more cattle" around Hanford.
Yes, and such annihilations of electrons+positrons produce characteristic bursts of gamma radiation with energy 511 keV when both particles have relatively low energy. The energy of each photon (two are always emitted; gotta conserve energy and momentum!) is equivalent to the rest mass of an electron * c^2.
Proton/anti-proton annihilation results in a gamma ray of energy 938 MeV.
You are correct. I should've known that; I'm an old unix user from way back. I learned about raw vs canonical in my UUCP days.
The whole ^H, ^W meme has more to do with how actual terminals used to work than with those quaint ascii control codes.
The reason old terminals worked that way was because of those 'quaint' control codes.
Since you brought that up, I'd like to see a resurgence of control codes. You know all the trouble using 'in-band' printable characters to denote special functions like grouping, field separation, etc? The whole issue of quotes and commas in the data in a CSV file, for instance, or a single quote in an SQL statement literal? Those old coots that developed bisync had this figured out - they had codes for start of text, end of text, start of header, etc. I propose we start using the old control codes for that. Give them a glyph that's similar to the character used currently (for instance replace the use of quoting with the ASCII character STX (Start of Text) and give it an inverse video " appearance). That way you never have to deal with figuring out what characters have special meaning and which are data.
You could do the same thing with XML - no more '<' to open a tag. Instead use an old ctrl code (SOH?) with a similar glyph.
...and ^W does whole words.
You're mixing ASCII control codes with bash readline key mappings. ^W in bash is "unix-word-rubout (C-w)". ^W in ASCII is ETB - End of Transmission Block.
...the obscure episode of 6 Million Dollar Man with William Shatner on this exact theme.
Is that the one where Shatner is wearing the bigfoot costume and Steve runs around in an ice tunnel with aliens?
Sorry, that was Andre the Giant, not Shatner. You mean this one.
I-295 around Richmond, Va has a 70 MPH limit in places.
If you're a "Heavy Metal" fan, you'd know that the God in one of the sketches is named "Uhluhtc" (pronounced ooh-la-tech) - Cthulhu in reverse.
Because a covert missile launch is so much more interesting (and newsworthy), perhaps?
An expert named Brian on the seesat-l list says:
...65 degF in the winter and disable the 2 degree adjustment entirely.
So you end up with women bringing in 1.5kW heaters to place under their desks? <sarcasm>That's efficient and safe. </sarcasm>
Turkeys can, in fact, fly.
But they can't land for squat. I watched one come in for a landing while hunting, and I must say that had to hurt - he hit the ground and proceeded to blast through some underbrush like a bowling ball.
If I were a content provider whose HTML was being modified in-flight, I'd invoke a law that already exists for that sort of thing - it's called copyright. My customer requested information from me; I provided it, and as such it is automatically copyrighted. Any modification in transit without authorization is illegal already, IMHO.
What happens when I request data from a web service for the lowest price for an item from pricegrabber and some intermediate ISP decides to replace the real answer with the price of one of their paid sponsors?
I would also like to see movie directors/etc go after broadcasters that place those obnoxious network 'bugs' into the content stream of the movie. They're altering the movie for monetary gain.
Yeah, very Soylent Green.
Everyone knows what a PHB is. Do you know what a PHA is? It's a Pointy-Haired Asteroid.
(a) the yard shall be 09144 metre exactly; (b) the pound shall be 045359237 kilogram exactly.
They tried to define them in OCTAL??? I see some 9's in there. FAIL.
I had a college professor that insisted on using nanofarads back when no one had ever heard of such a thing. he was a physicist and naturally had no respect for established norms in electronics. Back then they were just beginning to use uF and pF vs mF for microfarad and mmF for picofarad.
What's with the apparent fascination with spheres? Wouldn't they be a lot harder to make 'perfect' than a cube, say? I could easily devise 'perfectly' parallel plates down to a wavelength of light, but how would you easily determine that a sphere were perfectly round?
In the US we have single split-phase power delivered to most homes. We have a transformer that converts distribution voltage (19,900V in my neighborhood) to a 120V/240V secondary. We can either have 120V or 240V circuits, depending on the load. The power is delivered to a breaker box where the breaker positions alternate which phase they're on. That way two adjacent 120V breakers are on different phases (for load balancing), but a double-side 240V breaker uses both legs.
See also http://www.allaboutcircuits.com/vol_2/chpt_10/1.html
But "Sunday monkey won't play piano song, play piano song."