Have you bothered reading the PDF ? It has a quite long description of the deorbiting parameters, which involve putting them in elliptic orbit with perigee of 300km, meaning if they miss and only reach 400km, they're only good for 2.9 years before orbital decay.
I made some calculations, lowering the perigee from 1075km to 3000km is actually relatively cheap, some 200m/s Delta V. Depending on the Isp of the engine, and the total mass (not clear if the 386kg are with or without propellant), we're speaking of 25-40kg op propellant. Make that 30-50kg and aeorbraking is not even needed because you're impacting the ground. Barely significant compared to the total mass.
(confirmation screen="are you sure" screen, not "your vote has been cast to Turd" screen. That one should just say "your vote has been cast"). This is how it's done in Belgium https://youtu.be/C5Cq89MBgG0?t... (old machines) / https://youtu.be/enprT4Poh9g?t... (new machines)
This does raise the question why someone you would want to pressure into voting for Turd would bother going to the polls and vote for someone else than Douche. If he's been there and voting is secret, you still can be sure he voted for Douche. That's also why voting is mandatory in some actual democracies (*).
(*) In the case of Belgium, it's even more perverse than this: when universal suffrage was introduced, the Left would have been enough class conscious to have fought their way to the voting booth. Mandatory universal suffrage was introduced to mitigate this by having the catholic majority go and vote as the priest told them to.
Trump has been campaigning to get some people to change their votes. Apparently several states allow that. But how can you enforce vote secrecy and modifications at the same time? As for booth selfies, display the voter's choice up until reaching the confirmation screen, then don't display it afterwards.
"So they figured out how to get an engine to run on Mars, but they can't figure out how to <Uneconomical goal on Earth>. Will they find intelligence on Earth"?
I didn't know your needs for resources only amounted to what you can eat. But if that's the case, maybe we should ban all food but Soylent and try to get another 50 billion people join the fun.
10km/day for 2000 days is only 20000km. The tyres are just fine. It's the same reason gas was rationed during WW2. No need to ration tyres if your car can only go so far as your energy storage will allow.
Shall we continue to get killed because it is easier to produce aircraft with a design from 1950s?
At a rate of about 700 deaths for about 3 billion passengers (both yearly averages). That's less than 0.3 ppm.
What industry would completely redesign itself and increase its costs by even 1% (this would probably be more like 20% plus the fix cost of the changes) to reduce its failure rate to below the current 0.3ppm (and then again, not necessarily to zero, as the last few year's crashed are not related to the kind where this system would help)?
This is merely interesting as an exercise for students. Studying concepts not viable in the industry is a laudable, but idiosyncratic purpose of academia; a bit like Smalltalk for instance.
I'm also not surprised it was made into an autoplaying video idiots share on Facebook.
You don't develop for browsers. That ship has sailed with IE. You develop for standards. This is why Firefox will be just fine in ten years, even though they are on their way to make it unbearably annoying to use.
By the way does anyone know how search suggestions for non default search engines are supposed to work when the search field defaults back to the default after each search?
The problem with firing the bottom 20% is that people will work to reach their KPIs instead of doing the 90% of their jobs that is not measurable yet of critical importance
Slashdot Mirror
What advantage would you have in landing a probe on the far side and concealing it ?
On Christmas day (Isaac Newton's birthday), one of the people who studied galaxies far, far away and the dark side of matter passed away. Vera Rubin
How's this different from NASA or DOD launched sats ? Do you really think some dudes from the Pentagon personally launched GPS ?
We're the UE, and like 95% of the world we have our orbits in km, thankyouverymuch
Yes I do play KSP. But I did take and finish a MOOC.
To be noted, I should have written 300km, not 3000km
Have you bothered reading the PDF ? It has a quite long description of the deorbiting parameters, which involve putting them in elliptic orbit with perigee of 300km, meaning if they miss and only reach 400km, they're only good for 2.9 years before orbital decay.
I made some calculations, lowering the perigee from 1075km to 3000km is actually relatively cheap, some 200m/s Delta V. Depending on the Isp of the engine, and the total mass (not clear if the 386kg are with or without propellant), we're speaking of 25-40kg op propellant. Make that 30-50kg and aeorbraking is not even needed because you're impacting the ground. Barely significant compared to the total mass.
Gary Powers ==> U-2 ==> subsonic
(confirmation screen="are you sure" screen, not "your vote has been cast to Turd" screen. That one should just say "your vote has been cast"). This is how it's done in Belgium https://youtu.be/C5Cq89MBgG0?t... (old machines) / https://youtu.be/enprT4Poh9g?t... (new machines)
This does raise the question why someone you would want to pressure into voting for Turd would bother going to the polls and vote for someone else than Douche. If he's been there and voting is secret, you still can be sure he voted for Douche. That's also why voting is mandatory in some actual democracies (*).
(*) In the case of Belgium, it's even more perverse than this: when universal suffrage was introduced, the Left would have been enough class conscious to have fought their way to the voting booth. Mandatory universal suffrage was introduced to mitigate this by having the catholic majority go and vote as the priest told them to.
Trump has been campaigning to get some people to change their votes. Apparently several states allow that. But how can you enforce vote secrecy and modifications at the same time?
As for booth selfies, display the voter's choice up until reaching the confirmation screen, then don't display it afterwards.
Does it mean we'll have to become racist to Spanish refugees again? it's so 1936...
Now we're going to see twice as much of that terrible meme "they found water on Mars but they can't fix the water problem on earth"
"So they figured out how to get an engine to run on Mars, but they can't figure out how to <Uneconomical goal on Earth>. Will they find intelligence on Earth"?
I didn't know your needs for resources only amounted to what you can eat. But if that's the case, maybe we should ban all food but Soylent and try to get another 50 billion people join the fun.
10km/day for 2000 days is only 20000km. The tyres are just fine. It's the same reason gas was rationed during WW2. No need to ration tyres if your car can only go so far as your energy storage will allow.
At a rate of about 700 deaths for about 3 billion passengers (both yearly averages). That's less than 0.3 ppm.
What industry would completely redesign itself and increase its costs by even 1% (this would probably be more like 20% plus the fix cost of the changes) to reduce its failure rate to below the current 0.3ppm (and then again, not necessarily to zero, as the last few year's crashed are not related to the kind where this system would help)?
This is merely interesting as an exercise for students. Studying concepts not viable in the industry is a laudable, but idiosyncratic purpose of academia; a bit like Smalltalk for instance.
I'm also not surprised it was made into an autoplaying video idiots share on Facebook.
Would be nice to see T, L, Square and Bar on the big screen. Then they can release the 3D sequel blockout
You don't develop for browsers. That ship has sailed with IE.
You develop for standards. This is why Firefox will be just fine in ten years, even though they are on their way to make it unbearably annoying to use.
By the way does anyone know how search suggestions for non default search engines are supposed to work when the search field defaults back to the default after each search?
Welcome to the USA where you get charged for MTC ans SMS-MT.
This is inconceivable in the EU. Hope the Brits won't have to deal with it.
That's a myth. The units pay for themselves. Not with a sufficient margin to recoup development or marketing, but every other sale helps a little
The problem with firing the bottom 20% is that people will work to reach their KPIs instead of doing the 90% of their jobs that is not measurable yet of critical importance
I think you meant it's a moo point
Republican Space Rangers https://youtu.be/xZuZShxJq8M
Can we meet face to face ?
Gordon Moore? That's none of our business
This is what the WSJ thinks http://i.imgur.com/bdgZa.jpg