I think it was about two years ago that W3C and Smartphone manufacturers standardized (mostly) and implemented the facilities necessary for web pages to work as apps. I programmed one that long ago and somehow never thought to claim credit for the invention on Slashdot:-)
As far as I can tell, there is little need for pre-installed apps any longer, or mobile sites.
I am not a tremendous fan of the graft of Javascript and a programmable DOM to static web pages as an afterthought. But given the way it grew, and the advent of websockets and the two dozen other new web APIs, it's implemented well enough now to do pretty much whatever you want.
Are you sure you have that right? I think helium's Joule-Thompson coefficient is inverse at LOX temperatures. The tanks in question are brought up to 5000 PSI. My understanding is that this non-intuitively cools the helium.
Not worth the cost if it means you have to lie down with the likes of Putin, etc. You might save money and operate more efficiently over the short term, but the long-term expense is much larger than any short-term gain.
Having a dependency on the Russians for transport to ISS and rocket engines for US military payloads has tied the hands of the US when they really should have taken much more severe economic measures against Russia over the Ukrane.
Resentment is like drinking poison and waiting for the other person to die.
Ever hear the saying "Fool me once, shame on you. Fool me twice, shame on me." Resentment taken to excess is silly, but at reasonable levels is simply a memory aid.
What does NASA use Russian engines in, other than ULA rockets?
"Parts is parts" is a way of saying "you should only think about economics and technology, and not any of the secondary effects." This often leads to disaster.
I bet there are some industries that the North Koreans are really good at. We have a reason, however, for not giving them lots of dollars to spend on anything they want. The Russians are no different.
I do believe that the use of Russian engines dates from an ill-guided attempt to keep newly-unemployed Russian scientists and technicians from going into the WMD business. I find it difficult to accept that ULA, having charged the US Government $1 Billion per year just for a promise to stay in business, could not maintain a non-Russian engine capability.
There's also the issue of two competitors for Federal launch, Boeing and Lockheed, forming a Trust and not being blocked from doing so.
It's pretty clear they went hand in hand with legislators to ripping off the US taxpayer the way they did. This doesn't cause me to have more sympathy for them now.
We probably have ITAR to blame for not being able to read the full report. You can make all the FOIAs you want, ITAR is always going to be the excuse because all of the details of using a COPV successfully in a rocket is for the moment a trade-secret of a US company which the country doesn't want to hand over to North Korea, etc.
Besides it being their rocket company, they are making every effort to optimize delta-V over weight when nobody else in their market is trying. Otherwise, they would be using metal tanks and not attempting a high-risk technology like densification. You're going to blow up a few rockets if you take those risks.
If you're a gamer, you are going to be forever at the mercy of the game companies, who are going to exploit their customers to some extent to maximize profit.
If you are a hacker, you have your own hacker-produced computing platforms and tools and a wide-open vista of hardware and physical objects that can now be designed and manufactured by the individual.
If you depend on some company to make everything you use, you've set yourself up to be their "client". Don't do that.
I don't really trust myself to catch that sort of situation in time to brake 100% of the time. I'd be happy to have a system that could help me that way.
Next question: was the Tesla maintaining a sufficient stopping distance? I tend to give more space than that.
I agree that the Hyperloop is cynical B.S. that Musk meant to deter the California high-speed rail project, and the semi-annual tunnel tweet is just naive. But he's doing pretty well with rockets. F9 first stage landing is a real coup.
Gee, the comments on this so far stink. People seem to be prejudiced.
First, the dashcam video presented is not from Tesla, it's from an independent car fan who seems to have gotten it from the driver. It was then retweeted by Elon Musk.
The activity demonstrated is the Tesla Autopilot triggering on sudden deceleration of the second car ahead, which is not clearly visible from the dashcam view (and presumably equally not clearly visible to the driver). It appears that autopilot warns and brakes.
Autopilot does not predict what happens to the cars ahead (although in second-car detections it's probably implied) and "anticipate" would be a better word anyway. Autopilot anticipates that the Tesla will hit something if it doesn't brake.
Soneone on twitter pointed out that he heard the "disengage" sound after the warning sound, indicating that the driver brakes. I don't hear if, but I don't know what it sounds like. Does anyone else hear it?
Someone pointed out that the Joshua Brown accident might not have happened if the radar had worked then. Yes, it might not have. One should also point out that Brown was speeding and apparently not looking. Despite its name, "autopilot" is not ready for the driver to disengage.
The Samsung device in question is a tablet used for reading. I do agree that there isn't really any expectation of privacy with these devices. If I had some reason to hide what I was doing, these would go in an ammo box away from where I was.
I am not a security evangelist, although I often mention security in talks regarding Open Source. I do not live a separate life from normal people as RMS does. Although I don't have it set up at the moment, I often have an APRS transceiver broadcasting my l location, and when it's going you can track me on aprs.fi.
Just what do you suggest I use as a mobile telephone?
I'd actually like to remove the space wasted by the Samsung apps on my current device. Which Cyanogenmod won't run upon. I might have to hack the ROM myself.
India has devalued its largest denomination bills by surprise, in an attempt to get folks in the "black economy", and this even means professionals like doctors, to account for their cash and stop avoiding taxes. Everyone has a very short time to deposit the old bills in a bank, or lose their value.
The problem with this is that because it was a surprise, India did not print new bills first, and does not have the capacity to print them at anything near the number required.
So, right now many businesses are shut down because they can't pay their employees. It seems that it was the case that these employees were paid in cash and might not be able to get bank accounts.
I bet you're just waiting for the phone to ring so you can say "no".:-)
I have a feeling for those ships,
Each worn and ancient one,
With great bluff bows, and broad in the beam:
Ay, it was unkindly done.
But so they serve the Obsolete -
Even so, Stone Fleet!
To scuttle them - a pirate deed -
Sack them, and dismast;
They sunk so slow, they died so hard,
But gurgling dropped at last.
Their ghosts in gales repeat
Woe's us, Stone Fleet!
I surmise that WindBourne brought this up because so many people need to be to have it explained to them that New Shepard is not an orbital rocket. By now, we just start explaining every time Blue Origin is mentioned. No surprise, really, that most people don't have it clear in their heads how much additional energy it takes to go into orbit rather than just to really high and fall down again.
Boeing had earlier said they would be delayed in providing a man-ready CST-100 spacecraft. Boeing's spacecraft is supposed to be compatible with several rockets (including the SpaceX Falcon 9) but probably would launch on an Atlas V. Sierra Nevada, well I'm having trouble taking them seriously and always have, there's no chance that Dream Chaser will be ready before the others. Nor will Blue Origin.
Slashdot Mirror
I think it was about two years ago that W3C and Smartphone manufacturers standardized (mostly) and implemented the facilities necessary for web pages to work as apps. I programmed one that long ago and somehow never thought to claim credit for the invention on Slashdot :-)
As far as I can tell, there is little need for pre-installed apps any longer, or mobile sites.
I am not a tremendous fan of the graft of Javascript and a programmable DOM to static web pages as an afterthought. But given the way it grew, and the advent of websockets and the two dozen other new web APIs, it's implemented well enough now to do pretty much whatever you want.
Maybe it's the pressure. I don't known what the JT point would be at thousands of PSI.
You mean industrial espionage. And it might be that was really the only reason for forming ULA, but the end result was that the taxpayer got screwed.
Are you sure you have that right? I think helium's Joule-Thompson coefficient is inverse at LOX temperatures. The tanks in question are brought up to 5000 PSI. My understanding is that this non-intuitively cools the helium.
Not worth the cost if it means you have to lie down with the likes of Putin, etc. You might save money and operate more efficiently over the short term, but the long-term expense is much larger than any short-term gain.
Having a dependency on the Russians for transport to ISS and rocket engines for US military payloads has tied the hands of the US when they really should have taken much more severe economic measures against Russia over the Ukrane.
One issue is that Helium non-intuitively cools off when pressurized. Filling the helium tank froze the oxygen.
Every year or so, I stand on Pad 34 and someone tells the story of Apollo 1. I remember the day it happened, too. It's one every engineer should hear.
Ever hear the saying "Fool me once, shame on you. Fool me twice, shame on me." Resentment taken to excess is silly, but at reasonable levels is simply a memory aid.
What does NASA use Russian engines in, other than ULA rockets?
"Parts is parts" is a way of saying "you should only think about economics and technology, and not any of the secondary effects." This often leads to disaster.
I bet there are some industries that the North Koreans are really good at. We have a reason, however, for not giving them lots of dollars to spend on anything they want. The Russians are no different.
I do believe that the use of Russian engines dates from an ill-guided attempt to keep newly-unemployed Russian scientists and technicians from going into the WMD business. I find it difficult to accept that ULA, having charged the US Government $1 Billion per year just for a promise to stay in business, could not maintain a non-Russian engine capability.
There's also the issue of two competitors for Federal launch, Boeing and Lockheed, forming a Trust and not being blocked from doing so.
It's pretty clear they went hand in hand with legislators to ripping off the US taxpayer the way they did. This doesn't cause me to have more sympathy for them now.
I believe they are using the word "buckle" to refer to pressure-induced deformation, not a kind of fastener.
One might have more sympathy for ULA once they are capable of flying without Russian engines.
We probably have ITAR to blame for not being able to read the full report. You can make all the FOIAs you want, ITAR is always going to be the excuse because all of the details of using a COPV successfully in a rocket is for the moment a trade-secret of a US company which the country doesn't want to hand over to North Korea, etc.
Besides it being their rocket company, they are making every effort to optimize delta-V over weight when nobody else in their market is trying. Otherwise, they would be using metal tanks and not attempting a high-risk technology like densification. You're going to blow up a few rockets if you take those risks.
Yes. I'd like to hear more from gamers who mostly play Open Source games.
If you're a gamer, you are going to be forever at the mercy of the game companies, who are going to exploit their customers to some extent to maximize profit.
If you are a hacker, you have your own hacker-produced computing platforms and tools and a wide-open vista of hardware and physical objects that can now be designed and manufactured by the individual.
If you depend on some company to make everything you use, you've set yourself up to be their "client". Don't do that.
I don't really trust myself to catch that sort of situation in time to brake 100% of the time. I'd be happy to have a system that could help me that way.
Next question: was the Tesla maintaining a sufficient stopping distance? I tend to give more space than that.
I agree that the Hyperloop is cynical B.S. that Musk meant to deter the California high-speed rail project, and the semi-annual tunnel tweet is just naive. But he's doing pretty well with rockets. F9 first stage landing is a real coup.
Gee, the comments on this so far stink. People seem to be prejudiced.
First, the dashcam video presented is not from Tesla, it's from an independent car fan who seems to have gotten it from the driver. It was then retweeted by Elon Musk.
The activity demonstrated is the Tesla Autopilot triggering on sudden deceleration of the second car ahead, which is not clearly visible from the dashcam view (and presumably equally not clearly visible to the driver). It appears that autopilot warns and brakes.
Autopilot does not predict what happens to the cars ahead (although in second-car detections it's probably implied) and "anticipate" would be a better word anyway. Autopilot anticipates that the Tesla will hit something if it doesn't brake.
Soneone on twitter pointed out that he heard the "disengage" sound after the warning sound, indicating that the driver brakes. I don't hear if, but I don't know what it sounds like. Does anyone else hear it?
Someone pointed out that the Joshua Brown accident might not have happened if the radar had worked then. Yes, it might not have. One should also point out that Brown was speeding and apparently not looking. Despite its name, "autopilot" is not ready for the driver to disengage.
The Samsung device in question is a tablet used for reading. I do agree that there isn't really any expectation of privacy with these devices. If I had some reason to hide what I was doing, these would go in an ammo box away from where I was.
I am not a security evangelist, although I often mention security in talks regarding Open Source. I do not live a separate life from normal people as RMS does. Although I don't have it set up at the moment, I often have an APRS transceiver broadcasting my l location, and when it's going you can track me on aprs.fi .
Just what do you suggest I use as a mobile telephone?
I'd actually like to remove the space wasted by the Samsung apps on my current device. Which Cyanogenmod won't run upon. I might have to hack the ROM myself.
India has devalued its largest denomination bills by surprise, in an attempt to get folks in the "black economy", and this even means professionals like doctors, to account for their cash and stop avoiding taxes. Everyone has a very short time to deposit the old bills in a bank, or lose their value.
The problem with this is that because it was a surprise, India did not print new bills first, and does not have the capacity to print them at anything near the number required.
So, right now many businesses are shut down because they can't pay their employees. It seems that it was the case that these employees were paid in cash and might not be able to get bank accounts.
Their economy is going to take a hit.
I bet you're just waiting for the phone to ring so you can say "no". :-)
I have a feeling for those ships,
Each worn and ancient one,
With great bluff bows, and broad in the beam:
Ay, it was unkindly done.
But so they serve the Obsolete -
Even so, Stone Fleet!
To scuttle them - a pirate deed -
Sack them, and dismast;
They sunk so slow, they died so hard,
But gurgling dropped at last.
Their ghosts in gales repeat
Woe's us, Stone Fleet!
- Herman Melville
I surmise that WindBourne brought this up because so many people need to be to have it explained to them that New Shepard is not an orbital rocket. By now, we just start explaining every time Blue Origin is mentioned. No surprise, really, that most people don't have it clear in their heads how much additional energy it takes to go into orbit rather than just to really high and fall down again.
Boeing had earlier said they would be delayed in providing a man-ready CST-100 spacecraft. Boeing's spacecraft is supposed to be compatible with several rockets (including the SpaceX Falcon 9) but probably would launch on an Atlas V. Sierra Nevada, well I'm having trouble taking them seriously and always have, there's no chance that Dream Chaser will be ready before the others. Nor will Blue Origin.