Re: [ccp4bb] Definition of diffractometer

2013-06-28 Thread Gerard DVD Kleywegt
As for Gerard's follow up, I remind him of the immortal wisdom of Jack Handey: "Maybe in order to understand mankind, we have to look at the word itself. Basically, it's made up of two separate words ? "mank" and "ind." What do these words mean? It's a mystery, and that's why so is mankind."

Re: [ccp4bb] Definition of diffractometer

2013-06-28 Thread James Holton
I agree with Tim on this one. A "diffract-o-meter" is a device for measuring diffraction. Yes, at one time a Geiger counter attached to a 4- or 5-circle rotation stage was the only kind of "diffractometer", but that is no reason to make the term exclusive to the original device. As for Gerard'

Re: [ccp4bb] Definition of diffractometer

2013-06-20 Thread Frank von Delft
No, a kilometer is what they use in shooter video games. On 20/06/2013 08:49, Gerard DVD Kleywegt wrote: So, in SI units it would be a kilometerometer? --dvd On Wed, 19 Jun 2013, Edward A. Berry wrote: an Odometer measures hod?s: wikipedia: The word derives from the Greek words hod?s ("path

Re: [ccp4bb] Definition of diffractometer

2013-06-20 Thread Gerard DVD Kleywegt
So, in SI units it would be a kilometerometer? --dvd On Wed, 19 Jun 2013, Edward A. Berry wrote: an Odometer measures hod?s: wikipedia: The word derives from the Greek words hod?s ("path" or "gateway") and m?tron ("measure"). In countries where Imperial units or US customary units are used, i

Re: [ccp4bb] Definition of diffractometer

2013-06-20 Thread Jrh
Dear Colleagues, If we may combine Ethan's quote from Stout and Jensen with Tim's meter:- With film the estimating of a spot's blackness by eye is not a meter, it originally was a person's eye aided by a reference strip of blackened graduated spot exposures. With measuring devices the subjectivit

Re: [ccp4bb] Definition of diffractometer

2013-06-19 Thread Edward A. Berry
an Odometer measures hodós: wikipedia: The word derives from the Greek words hodós ("path" or "gateway") and métron ("measure"). In countries where Imperial units or US customary units are used, it is sometimes called a mileometer or milometer, or, colloquially, a tripometer. Tim Gruene wrote:

Re: [ccp4bb] Definition of diffractometer

2013-06-19 Thread Tim Gruene
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Yes, but you need to know the 'geo' has to do with earth, so geometers measure the earth to make maps, odo, I believe has to do with smell, and kilometer is hyphenated kilo-meter, no kil-ometer, so the origin of that word is nothing to do with 'ometer

Re: [ccp4bb] Definition of diffractometer

2013-06-19 Thread Gerard DVD Kleywegt
Wait, so a geometer measures ges, an odometer measures ods, and a kilometer measures kils? --dvd On Thu, 20 Jun 2013, Tim Gruene wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Dear Ed, to me, an '-ometer' is a device that measures whatever you put in front of the 'o', so in case of a

Re: [ccp4bb] Definition of diffractometer

2013-06-19 Thread Tim Gruene
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Dear Ed, to me, an '-ometer' is a device that measures whatever you put in front of the 'o', so in case of a diffractometer that's a device that measures diffraction. Best, Tim On 06/19/2013 08:11 PM, Edward A. Berry wrote: > Somewhere I got the ide

Re: [ccp4bb] Definition of diffractometer

2013-06-19 Thread Ethan Merritt
On Wednesday, June 19, 2013 11:11:01 am Edward A. Berry wrote: > Somewhere I got the idea that a diffractometer is an instrument that measures > one > reflection at a time. Is that the case, and if so what is the term for > instruments > like rotation camera, weisenberg, area detector? (What is a

[ccp4bb] Definition of diffractometer

2013-06-19 Thread Edward A. Berry
Somewhere I got the idea that a diffractometer is an instrument that measures one reflection at a time. Is that the case, and if so what is the term for instruments like rotation camera, weisenberg, area detector? (What is an area detector?). Logically I guess a diffractometer could be anything