The epoch was a well-defined moment in time until leap-seconds happened, and Unix ignored them. POSIX perpetuates that error. As a result, the epoch keeps moving.
You have it sort of backwards. There is one big challenge: getting into earth orbit. Consider the relative sizes of the Apollo program modules. Big Saturn 5 rocket to achieve orbit. Much, much smaller Apollo service module with enough delta-V for both earth and lunar escape velocity. Little lunar module achieves orbit from the moon using fuel tanks that would sit in the back of a pickup truck.
Bruce
Re:Rutan is ready to flight-test the rocket motor
on
X-Prize Progress Update
·
· Score: 0, Offtopic
My autograph and $1.10 will get you a ride on the New York subway.:-)
Rutan is ready to flight-test the rocket motor
on
X-Prize Progress Update
·
· Score: 5, Interesting
I've been following the test updates on the Scaled Composites site. It looks as if they are ready to flight-test the rocket motor. On the last flight, they tested the entire propulsion system with nitrogen flow. It sounds to me as if they could be ready to fire on the very next test flight.
I guess the first firings would be short, and would be designed to test the vehicle in the powered and high-speed-glide speed and dynamics envelopes rather than the lower-speed glide one which is now reasonably well characterized.
There are two ends to the radio communication. Generally, in a disaster communication, one end is outside of the disaster area. And that end is not going to hear the other if there is BPL around.
He was commissioned by Polaroid to do large-format Polaroid instant film work. The photos from that commission are well known, and there was no railing about the medium even though Polaroid prints had to be hand-coated.
Just google for "cord blood", you'll find the vendors. I think it comes to about $1700 to start, and then $1400 for 18 years of storage. Not cheap if you've never been sick. But I've seen an $80,000 gall bladder.
When Stanley was born, we banked his umbilical cord blood. Cord blood contains a form of fetal stem cell. The cells are in storage in a cryogenic facility at the University of Arizona. They can be used if he (or a sibling, if he had one) needs a stem cell donor for medical reasons later in life. I do not believe there is any ethical issue regarding healing Stanley with his own cells, provided that anything grown from the cells does not include a conscious brain of its own. And we need research so that we can use those cells.
Too much of the objection over stem cell use is concerned with the origin of some stem cell cultures in aborted fetuses.
The book text is open source licensed. It will be online for free for as long as you can serve it from your own web site. And you can print it, too, and sell the printed copy, and edit a second edition because we give you the source. It need never die.
I have a different explanation. They're using a really dumb modulation. Fits the "student project" aspect. They probably threw together something that worked.
I still have a couple of the original Ricochet radios. They're pretty useless now.
It sounds as if Ricochet had the hidden transmitter problem. It sounds likely if you could see 7 of them. Did they use any sort of channel reservation protocol?
The stuff about VHF following the curve of the atmosphere and bouncing off of the ionosphere isn't quite right. That's HF. The frequency in use for this experiment, 45 MHz, would bounce during sunspot maxima but you can't build a communications system with it if you need it to bounce. Also, the choice of frequency is strange - 45 MHz rather than microwave, where there would be much less of a problem. Do they mean to run a star topology rather than point-to-point? 7 MHz for 250 Kbps is not so great. You should get 28 250Kbps channels in there. Multipath would be the main problem.
Mesh networking would be a better idea than all of this. More bandwidth, more parallelism, less power.
It doesn't sound as if they are really ready to talk about frequency coordination with other users. I hope they don't go about asking for spectrum for anything but experimentation this early in their project.
Deleting them entirely will just cause generic ones to be re-created. Deleting them partially might mess things up. I guess. GNOME 2.6 seems to be pretty resistant to that.
To fix it, log out. Pull the electric plug and reboot if nothing else works to log out out. At the GDM login panel, select "Session -> Failsafe GNOME". I don't believe there is currently a zap-my-configuration and log in selection - that would not be a bad idea.
Graphics do not equal usability. Espeically if you are blind or without a graphic display. If you want to see people caught in tyrany, the plight of a blind person negociating today's web is pretty close.
A textual system that did the job simply, would be more usuable as a graphical one, simply because it would work for more people.
I can't change the fact that you need a computer until I can replicate matter the way I can software. When I can, I will make Open Source designs for material objects. Meanwhile, see the folks at OpenCores.org and the CNC machining crowd.
I can change the fact that you are required to pay money to distribute a proprietary application. And I have to weigh the advantages and disadvantages. One of the articles you presented was an exposition of the difference between writing for GTK in C and Python and Qt in C++. It seemed a little apples-and-oranges, since nice C++ interfaces are available for GNOME.
If you want to talk about the proprietary companies on GUIs, you might consider that HP and Sun do that on GNOME. Even on their Unix platforms.
One of the things I'd like to go for is the principle of least surprise. Having a set of development libraries that are all cleared for producing and distributing proprietary applications would be least surprising.
I am already sufficiently aggrandized, thank you. I don't do anything to help it along, other people seem to want to do that for me. I kid you not. They do this by giving me keynotes at trade shows, drafting me to be executive director of the desktop consortium, giving me a book series of my own, and quoting me in the news - if the whole article isn't about me. It's very strange. I try to use it to do good for our cause.
You are considering that two competing packages might be equal. What if they aren't, and we have good reasons for decisions, and a public review processs?
I think not deciding is a greater danger than making any decision for a lot of these questions.
If Fedora, SuSE, etc., work with SATA, they have an updated kernel with an SATA driver on their install disk. That is all. The next Debian will probably be based on kernel 2.6, and will have this feature as well. If you want to test out the prototype Debian installer, you can test it with that kernel today.
Well, if you are just going to say people don't want "debian-obsolete, debian-broken, and debian-by-another-name" without any supporting reasons, we're not really having an argument, it's just abuse. Try to put a logical argument together.
Why not do everything inside of Debian? Because Debian is a non-profit, and needs the synergistic relationship with for-profit engineering and service providers to achieve the goals I am proposing.
Thus, I had to design a structure with Debian at the core, but which is a superset of Debian.
Were I starting with a for-profit, I'd have had to design an independent non-profit at the middle and a number of competing for-profits. Fedora fails the independence test, if you were wondering.
And before you accuse me of wanting to revitalize Debian, you should attempt to make a case that it has lost vitality.
Am I not communicating clearly? 50,000 x $1000 would be $50 Million. They get a discount off of that $1000 list price, but I can still easily beat the price they get.
I wonder if we could hack configure to try to install library packages while configuring the program. We could probably do it without changing the configure files that come in the source packages.
By the way, we will have the free downloadable version of the webmin book online soon. Or you can buy it - it's in the Borders and Barnes and Noble stores, etc. See my book series.
Slashdot Mirror
Bruce
Bruce
My autograph and $1.10 will get you a ride on the New York subway. :-)
I guess the first firings would be short, and would be designed to test the vehicle in the powered and high-speed-glide speed and dynamics envelopes rather than the lower-speed glide one which is now reasonably well characterized.
This is all very exciting.
Bruce
Bruce
I think he would have gone digital.
Bruce
Bruce
Too much of the objection over stem cell use is concerned with the origin of some stem cell cultures in aborted fetuses.
Bruce
Thanks
Bruce
Download it from The Bruce Perens Open Source Series site.
Bruce
Bruce
If they were using direct-sequence spread spectrum, they could deal with multipath, too. Just don't be on the frequency when the echo arrives.
Bruce
It sounds as if Ricochet had the hidden transmitter problem. It sounds likely if you could see 7 of them. Did they use any sort of channel reservation protocol?
Bruce
Mesh networking would be a better idea than all of this. More bandwidth, more parallelism, less power.
It doesn't sound as if they are really ready to talk about frequency coordination with other users. I hope they don't go about asking for spectrum for anything but experimentation this early in their project.
Bruce
To fix it, log out. Pull the electric plug and reboot if nothing else works to log out out. At the GDM login panel, select "Session -> Failsafe GNOME". I don't believe there is currently a zap-my-configuration and log in selection - that would not be a bad idea.
Bruce
A textual system that did the job simply, would be more usuable as a graphical one, simply because it would work for more people.
Bruce
I can change the fact that you are required to pay money to distribute a proprietary application. And I have to weigh the advantages and disadvantages. One of the articles you presented was an exposition of the difference between writing for GTK in C and Python and Qt in C++. It seemed a little apples-and-oranges, since nice C++ interfaces are available for GNOME.
If you want to talk about the proprietary companies on GUIs, you might consider that HP and Sun do that on GNOME. Even on their Unix platforms.
One of the things I'd like to go for is the principle of least surprise. Having a set of development libraries that are all cleared for producing and distributing proprietary applications would be least surprising.
Bruce
You are considering that two competing packages might be equal. What if they aren't, and we have good reasons for decisions, and a public review processs?
I think not deciding is a greater danger than making any decision for a lot of these questions.
Bruce
I was the second Debian project leader, and took the project through a very critical time. During that period I was responsible for:
- creating the social contract
- creating the official CD policy
- building Debian from 60 developers to 200
- releasing the first ELF version of Debian - it was previously COFF and LIBC5-based
- transferring all of the base system packages to community rather than centralized development
- founding SPI
- no doubt lots of other stuff that I've forgotten
These are possibly the most fundamental changes that Debian has ever gone through. During or subsequent to that, II don't have to prove myself.
But I agree that now it's time to do the work.
Bruce
Thanks
Bruce
Bruce
Why not do everything inside of Debian? Because Debian is a non-profit, and needs the synergistic relationship with for-profit engineering and service providers to achieve the goals I am proposing.
Thus, I had to design a structure with Debian at the core, but which is a superset of Debian.
Were I starting with a for-profit, I'd have had to design an independent non-profit at the middle and a number of competing for-profits. Fedora fails the independence test, if you were wondering.
And before you accuse me of wanting to revitalize Debian, you should attempt to make a case that it has lost vitality.
Bruce
Bruce
Bruce
Thanks
Bruce