What sort of science do you do for a living? Small size data set I take it. Consider the LHC which produces data at a rate 10 times faster than the facility can store the data.
See http://arxiv.org/pdf/physics/0406003
In the ALICE Technical Proposal [32], the collaboration estimated that a bandwidth
of 1.25 GB/s to mass storage would provide adequate physics statistics. As seen from
Table 2.3 the expected data rate from the detector exceeds this number by an order of
magnitude. This has lead to the proposal and inclusion of the ALICE High Level Trigger
(HLT) system. The task of this system is to reduce the data rate to an acceptable level
in terms of DAQ bandwidth and mass storage costs, and at the same time provide the
necessary event statistics.
While I personally agree that in retrospect it was a bad plan to dispose of the original data, the reasons are analogous with the ones used presently at the LHC. They did not have room to keep the raw data, and it was not needed for adequate statistics.
My understanding of tone only pager is - the pager sometimes emits a tone. The you call your service via a phone to get the message. So a text based page is not a tone-only paging device. These are very old school. A doctor might have one ( before cell phones ) and she would call the paging service number to get the message. Rural metro fire service members might have them - when the tone goes off you drive to your station.
The more energetic beam might well do less damage. See the Brag Peak in http://en.wikipedia.org/wiki/Proton_therapy. The point being that Proton beam therapy sees beams up to say 250 Mev. And I think that is because higher energy goes too deep. Note also that the higher the energy of the proton, the smaller its cross section to tissue.
Wiki claims Jobs asked Adobe to adopt Postscript for laser printers. http://en.m.wikipedia.org/wiki/PostScript and the apple laser writter was the first postscript printer. MacPublisher predates Pagemaker. So it sure seems like Apple can claim the first wisiwg dtp solution.
It is a point source at any reasonable (astronomical) distance, that is to say it produces a spherical wave front not plane waves. It does fall off as 1/r^2. There are at least a couple of reasons to build big antennae, 1) to increase the area of the collection, and hence the energy collected, 2) to increase the aperture to minimize diffraction - of course the VLA has a much larger effective aperture. See http://en.wikipedia.org/wiki/Diffraction#Diffraction_by_a_circular_aperture Though the approximation I like is lamba/Lens ~ distance/final area.
Not volume. Surface area. What is the amount of energy passing through some unit area in a unit of time. Google flux. For a sphere, the area increase as r^2. Double the distance and you have 1/4 the flux. The point of a big dish is to intercept more of the flux, and to get better angular resolution.
Most fusion paths generate neutrons. The neutrons will make the walls of the reactor slightly radioactive for some value of slightly. Until we can do neutron free fusion there will still be a minor issue of waste.
I wrote the iPhone version of Repton primarily in C++. It is easy to mix Obj-C and C++, and I prefer C++ for OpenGL usage. A few UI items I implemented using the Cocoa Obj-C interfaces because Interface Builder is so pleasant to use. Any one suggesting iPhone development is limited to Obj-C is inexperience in iPhone development. Any one suggesting Obj-C is hard to use compared to Java may have a point, but primarily because the Java IDEs are so good compared to XCode. As far a game dev goes, I prefer C++ to Java especially the OpenGL bindings, and I think game dev benefits from new/delete control one has in C++.
My first car was a 1969 Citroen ID-19 bought used in 1981. So I am mostly familiar with the ID/DS line. I guess the 2CV is unibody. I loved that car, but at some point I didn't have time to do my own work, and it was very expensive to get it done in AZ, or CA for that matter.
CitroÃn had unibody, disc brakes, and the equivelent of crush zones. The were required however to put a 5mph bumper on the car instead of the 4kph as in europe due to US insurance demand. Would like to know how the test would have looked against a Cit.
Slashdot Mirror
Consider the LHC which produces data at a rate 10 times faster than the facility can store the data.
See http://arxiv.org/pdf/physics/0406003
In the ALICE Technical Proposal [32], the collaboration estimated that a bandwidth of 1.25 GB/s to mass storage would provide adequate physics statistics. As seen from Table 2.3 the expected data rate from the detector exceeds this number by an order of magnitude. This has lead to the proposal and inclusion of the ALICE High Level Trigger (HLT) system. The task of this system is to reduce the data rate to an acceptable level in terms of DAQ bandwidth and mass storage costs, and at the same time provide the necessary event statistics.
While I personally agree that in retrospect it was a bad plan to dispose of the original data, the reasons are analogous with the ones used presently at the LHC. They did not have room to keep the raw data, and it was not needed for adequate statistics.
Apparently they are still in common use: http://www.genave.com/two-tone_paging.htm
and more interesting: http://fringe.davesource.com/Fringe/Hacking/Phreaking/Pagers/Protocols/pager.html
As I posted further on: http://politics.slashdot.org/comments.pl?sid=1461912&cid=30282926
I think it is illegal to snoop even clear text per the Electronic Communications Privacy Act of 1986. http://en.wikipedia.org/wiki/Electronic_Communications_Privacy_Act [wikipedia.org]. "ECPA prohibits unlawful access and certain disclosures of communication contents. " See also: John and Alice Martin http://www.nytimes.com/1997/04/24/us/florida-couple-are-charged-in-taping-of-gingrich-call.html [nytimes.com]
My understanding of tone only pager is - the pager sometimes emits a tone. The you call your service via a phone to get the message. So a text based page is not a tone-only paging device. These are very old school. A doctor might have one ( before cell phones ) and she would call the paging service number to get the message. Rural metro fire service members might have them - when the tone goes off you drive to your station.
Just because you can do something does not make it legal to do.
Or, do you believe that an door is unlocked door is an invitation to enter? I believe what you describe doing falls under the Electronic Communications Privacy Act of 1986. http://en.wikipedia.org/wiki/Electronic_Communications_Privacy_Act. "ECPA prohibits unlawful access and certain disclosures of communication contents. " See also: John and Alice Martin http://www.nytimes.com/1997/04/24/us/florida-couple-are-charged-in-taping-of-gingrich-call.html
The more energetic beam might well do less damage. See the Brag Peak in http://en.wikipedia.org/wiki/Proton_therapy. The point being that Proton beam therapy sees beams up to say 250 Mev. And I think that is because higher energy goes too deep. Note also that the higher the energy of the proton, the smaller its cross section to tissue.
My fingers pine for the front panel of an IMSAI! I miss having to load a tape reader by hand.
Wiki claims Jobs asked Adobe to adopt Postscript for laser printers. http://en.m.wikipedia.org/wiki/PostScript and the apple laser writter was the first postscript printer. MacPublisher predates Pagemaker. So it sure seems like Apple can claim the first wisiwg dtp solution.
Apple II ?
Hypercard ?
Quicktime ?
Finalcut ?
Desktop publishing ?
All seem pretty innovative to me.
I don't know, if you look at the side view, the initial eruption of the wave looks like it could be 5% or 10% the diameter of the sun.
Noble is not what it used to be:
http://en.wikipedia.org/wiki/Xenon_tetrafluoride
http://en.wikipedia.org/wiki/Xenon_hexafluoride - my favorite Xe compound
And generally http://en.wikipedia.org/wiki/Xenon_compounds
Oops, new favorite Xe compound is: Xe Endohedral fullerene: http://en.wikipedia.org/wiki/Endohedral_fullerene
It is a point source at any reasonable (astronomical) distance, that is to say it produces a spherical wave front not plane waves. It does fall off as 1/r^2. There are at least a couple of reasons to build big antennae, 1) to increase the area of the collection, and hence the energy collected, 2) to increase the aperture to minimize diffraction - of course the VLA has a much larger effective aperture.
See http://en.wikipedia.org/wiki/Diffraction#Diffraction_by_a_circular_aperture
Though the approximation I like is lamba/Lens ~ distance/final area.
Not volume. Surface area. What is the amount of energy passing through some unit area in a unit of time. Google flux. For a sphere, the area increase as r^2. Double the distance and you have 1/4 the flux. The point of a big dish is to intercept more of the flux, and to get better angular resolution.
The we that includes space internet users.
We are on Mars. Have been for awhile.
Most fusion paths generate neutrons. The neutrons will make the walls of the reactor slightly radioactive for some value of slightly. Until we can do neutron free fusion there will still be a minor issue of waste.
I wrote the iPhone version of Repton primarily in C++. It is easy to mix Obj-C and C++, and I prefer C++ for OpenGL usage. A few UI items I implemented using the Cocoa Obj-C interfaces because Interface Builder is so pleasant to use.
Any one suggesting iPhone development is limited to Obj-C is inexperience in iPhone development. Any one suggesting Obj-C is hard to use compared to Java may have a point, but primarily because the Java IDEs are so good compared to XCode. As far a game dev goes, I prefer C++ to Java especially the OpenGL bindings, and I think game dev benefits from new/delete control one has in C++.
Yes, Obj-C now support garbage collenction - but not on the iPhone OS. http://developer.apple.com/mac/library/documentation/Cocoa/Conceptual/ObjectiveC/Introduction/introObjectiveC.html
Remo Williams anyone?
Maybe someone enabled Simple Finder on his account!
THanks
The Traction Avant then?
My first car was a 1969 Citroen ID-19 bought used in 1981. So I am mostly familiar with the ID/DS line. I guess the 2CV is unibody. I loved that car, but at some point I didn't have time to do my own work, and it was very expensive to get it done in AZ, or CA for that matter.
Ok, I missed a single letter while typing at my iPhone from the driver's seat...
CitroÃn had unibody, disc brakes, and the equivelent of crush zones. The were required however to put a 5mph bumper on the car instead of the 4kph as in europe due to US insurance demand. Would like to know how the test would have looked against a Cit.