That looks suspiciously like a Newtonian formula and it's going to break down long before a year passes and the ship is doing 0.8c. Here is a page with closer to the correct math, http://math.ucr.edu/home/baez/... which shows after 1 year ship time (1.19 yr Earth time) the ship will have traveled 0.56 lyrs and a trip to Centauri, (including slowing down) takes about 3.6 ship years. Some tables from the above URL, sorry about the formatting
T t d v
1 year 1.19 yrs 0.56 lyrs 0.77c 1.58
2 3.75 2.90 0.97 3.99
5 83.7 82.7 0.99993 86.2
8 1,840 1,839 0.9999998 1,895
12 113,243 113,242 0.99999999996 116,641
...
4.3 ly nearest star 3.6 years 27 ly Vega 6.6 years 30,000 ly Center of our galaxy 20 years 2,000,000 ly Andromeda galaxy 28 years n ly anywhere, but see next paragraph 1.94 arccosh (n/1.94 + 1) years
The chief problem with the assertion that we will never go beyond Mars, is that once you go to Mars and live there, you have the capable to travel to and live on a variety of other bodies in the Solar System such as the Moon, the Asteroid Belt, the two groups of Sun-Jupiter Trojan asteroids, Mercury, and the primary four Jovian moons. They are only a little bit harder to travel to and to live on.
There's still things to consider such as the radiation flux. Especially for Mercury and the primary 4 Jovian moons. My understanding is that the Jovian radiation belt is strong enough that we may never even land on them excepting perhaps short trips to Ganymede. The outer satellites are more possible along with the asteroids etc and Titan. And just staying warm on Titan will be a major struggle.
My understanding is that it takes about a year just to accelerate (at 1g) to close enough to c to really start to get the benefits of time dilution with an equal slow down time so still a few years ship time to Centauri. Then there is the fun of dealing with the dust and larger particles hitting the ship at close to c and of course the radiation flux.
Not quite. It takes a year of 1g acceleration just to get close enough to c to get the benefits of relativity, with another year to slow back down. Used to have a link to a nice table of travel times (ship) that I can no longer find. It was something like 4 years to Alpha Centuri, 5 years to 30 light years, 6 years to a hundred light years etc. The ultimate, without slowing down at the end, was 30 years to the Andromeda Galaxy and 70 years to the current edge of the visible universe. As others mentioned, you need close to infinite energy for the longer trips and way more then we can imagine carrying for the shortest, with antimatter being the best we can currently imagine. Then there are the problems of traveling at a decent percentage of c, just hitting a grain of sand would be deadly, not to mention the radiation flux.
Probably just a typo somewhere or if you're like me, a mental hiccup. Shit, I thought that I said by mass for the total and yet I obviously didn't and of course the atmosphere numbers I quoted were by volume which I missed, having found the numbers I remembered.
I doubt very much that oxygen makes up 64% of the mass of the Earth. Do you have a citation? According to https://en.wikipedia.org/wiki/..., the main composition of the Earth by mass is iron at 32.1% though I am somewhat surprised that oxygen is number 2 at 30.1%, which is a lot of oxygen. There are estimates that put the percent of oxygen in the crust at 47% which is close enough to half but still not 64%. And of course the atmosphere is mostly nitrogen at aprox 78% and almost 21% oxygen, thanks to the hard work of plants.
Possibly, it really depends on how much of the internals are exposed and whether the add-on developer wants to start all over. We'll have to wait and see what choices Mozilla makes going forward though I do notice that the other browsers don't have anywhere near the add-on ecology, likely due to the add-ons having to use pure HTML/CSS/JS rather then lower level stuff.
Themes do need to be downloaded and replacing the default theme is pretty trivial as most all the UI is a theme (CSS and bitmaps) and part of the core, at least currently. But don't worry, the long term plan seems to get rid of all customization, things like add-ons including add-blockers take having support in the main code base so will be removed and you will get a browser that acts exactly like the Mozilla Foundation wants rather then how the user wants
Does it support all the extensions? I thought that was about the whole point of using Firefox lately. That, and sometimes it behaves better in terms of resources, but this varies depending on the system and workload.
Supports most of the Firefox and Thunderbird extensions. Here's an automatic extension converter, http://addonconverter.fotokrai... In terms of resources, I find SeaMonkey to actually be lighter, even with the included mail, newsgroups and IRC clients. It is also much better for Granny and other people who like a consistent interface and can even be themed to look like Firefox 3. Of course it depends on the same Gecko engine as Firefox so when Mozilla gets rid of themes and extensions, SeaMonkey will probably lose them as well.
The good news, they're getting rid of bloat, things such as xul. The bad news, no more xul based extensions (most all) so no more Tree Style Tab extension so all users who stick with Mozilla for the extensions won't have an excuse to not move to a different browser. They seem determined to reduce the user base to 0%
Wrong. Socialism at heart is the people owning the means of production. While often this means the government, in the name of the people, owns the means of production, many socialists want nothing to do with (big) government. From https://en.wikipedia.org/wiki/...
Libertarian socialism (sometimes called social anarchism,[1][2] left-libertarianism[3][4] and socialist libertarianism[5]) is a group of political philosophies within the socialist movement that reject the view of socialism as state ownership of the means of production[6] within a more general criticism of the state form itself[7][8] as well as of wage labour relationships within the workplace.[9] Instead it emphasizes workers' self-management of the workplace[10] and decentralized structures of political organization[11] asserting that a society based on freedom and equality can be achieved through abolishing authoritarian institutions that control certain means of production and subordinate the majority to an owning class or political and economic elite.[12] A decentralized means of direct democracy and federal or confederal associations are used to politically organize[13] such as libertarian municipalism, citizens' assemblies, trade unions, and workers' councils.[14][15] All of this is generally done within a general call for libertarian[16] and voluntary human relationships[17] through the identification, criticism, and practical dismantling of illegitimate authority in all aspects of human life.[18][19][20][21][22][23][24]
Past and present political philosophies and movements commonly described as libertarian socialist include anarchism (especially anarchist communism, anarchist collectivism, anarcho-syndicalism,[25] and mutualism[26]) as well as autonomism, communalism, participism, revolutionary syndicalism, and libertarian Marxist philosophies such as council communism and Luxemburgism;[27] as well as some versions of "utopian socialism"[28] and individualist anarchism.[29][30][31][32]
Now whether practical is another discussion as it seems that any form of Libertarianism just allows a ruthless tyrant to move in and create an authoritarian State.
I bought one of those just a couple of years back, Was cheap, perhaps $5, and actually with it, my MP3 player sounded much better then any tape. Now I have a cheap CD player that also takes a USB stick with MP3s on it, and it sounds terrible, worse then the FM though CDs sound pretty good.
Often warming temperatures equals increasing precipitation due to the warmer air holding more moisture. In the case of the Antarctic, a continent that is mostly desert, the expectation should be more snowfall which can lead to more ice. Kind of surprised that snowfall is considered consistent. And of course if snowfall is increasing due to warming (numbers pulled from my ass and exaggerated) from -40 to -10, then the expectation should be more ice buildup.
The railroads had common-carrier status pushed on them in the late 1800's IIRC, this forced them to treat all customers the same and was sorta considered a right.
All the non-profits accept foreign funding and engage in political activism, the difference was who had the ear of the PMO. There were lots of problems around here with people being sent to wrong polling stations, mostly corrected by the ones who put a lot of effort into it, probably not corrected by ones who gave up. Then there were the other screw ups. My personal story was going to the Elections Canada web site to make sure my wife and I were still registered and it reporting we were. Then our voter cards came with the wrong name on my wifes card, Elections Canada still claimed she was registered in the name that she has on her ID. Took well over an hour to sort it out at the polling station, which luckily was not busy otherwise we would have to have given up. I know Harper didn't want the native Canadians to vote and Elections Canada helped. Yes, the Liberals have fucked up the military as well including Paul Martin starting the fuck up the veterans thing, Harper seems to have tried to take it to a whole new level. I also remember when OPEC decided to boost oil prices starting the whole hyper-inflation thing over the whole of the western world. I also remember that I did better then then now as wages went up as fast as inflation unlike now where wages are stagnant and prices continue to go up, especially those things that we need such as food, housing and fuel (gas is back up to $1.30 a litre here). Shit I used to be able to put money in the bank and get more back. Try that now. Whether the price and wage controls helped or made things worse is debatable. I also remember the FLQ and the War Measures Act, though I didn't feel personally threatened by it as I do with Bill C51. I also remember Mulroney, who had the same respect for the average Canadian as most conservatives and the GST BS that saw prices go up another 7% while the manufacturers pocketed their tax savings, Then there was the free trade deal. Just like now, it was to give business free stuff. There's a reason that the PCs almost got shut out of Parliament (reduced to 2 seats). Then of course there was the safety deposit boxes full of $1000 bills that Mulroney swore he came about honestly. I'm old enough to know that the Liberals are fucking horrible and the Conservatives are even fucking worse. I hate fucking authoritarianism and Harper takes the cake with his authoritarianism. It's jsut sad that so many people are looking for a Big Daddy.
Canadians for a start. Canadians would also be more receptive to pipelines full of (semi-)refined products instead of tar along with diluent. At least in case of accident it would float and be much easier to clean up. The previous government was really focused on selling to China as they'll pay more then the Americans.
How hard would it be to twist that into "No Tax or Duty shall be laid on Articles produced and exported from any State."? Americans seem to be very good at creating new interpretations of their Constitution rather then just updating it.
It's not a conservative thing, it is an authoritarian thing. Authoritarians can show up under any parties banner though in democracies they do seem to be on the right side of the spectrum as often as not. Harper was such an authoritarian that he didn't even let his own party members talk so we had an election where the Conservative candidate wouldn't even show up to town hall type all candidate meetings.
As a Canadian, I hate the idea of exporting our raw resources any which way and hopefully this will lead to doing some refining here and then piping the refined product elsewhere. More inefficient means of transport such as trains puts more pressure on the oil companies to be efficient. I also hate the fact that we're dependent on other countries to supply our fuel. America is bad enough with their strategic refinery shutdowns but depending on China and shipping raw product across the Pacific and refined product back does not seem right. As it is, gas has just shot up 20 cents a litre in the last week here.
You would have liked Harpers small government. Things like shrinking Revenue Canada so all it can investigate is left wing non-profits, shrinking Election Canada so it can't even tell people where to vote accurately, little well encourage them, shrinking the military so all the moneys spent on killing brown people and buying the F35, a plane that's useless for the arctic, but no money for the injured vets returning. A huge propaganda department so continuous bombardment of ads telling us how great Harpers Government (not the Government of Canada) is doing and of course spying on the citizens as they might have the wrong politics. Yes a small government that is big enough to go after its opponents and get their message out. Oh also a government that can inherit a surplus and run a $56 billion deficit while telling us how fiscally responsible they are. At least they didn't waste those $2 billion on those welfare queen veterans and finally balanced the budget after 7 years of deficits.
One thing I remember is ex-fisheries scientists talking about being muzzled over things like where the cod breed and some discoveries about lobster breeding that some American scientists ended up getting credit for. There was also the destruction of the fisheries libraries. Basically scientists muzzled just so Harper could practice his control fetish.
Slashdot Mirror
That looks suspiciously like a Newtonian formula and it's going to break down long before a year passes and the ship is doing 0.8c.
Here is a page with closer to the correct math, http://math.ucr.edu/home/baez/... which shows after 1 year ship time (1.19 yr Earth time) the ship will have traveled 0.56 lyrs and a trip to Centauri, (including slowing down) takes about 3.6 ship years.
Some tables from the above URL, sorry about the formatting
I stand corrected, probably old info and I obviously mixed up Ganymede and Callisto.
The chief problem with the assertion that we will never go beyond Mars, is that once you go to Mars and live there, you have the capable to travel to and live on a variety of other bodies in the Solar System such as the Moon, the Asteroid Belt, the two groups of Sun-Jupiter Trojan asteroids, Mercury, and the primary four Jovian moons. They are only a little bit harder to travel to and to live on.
There's still things to consider such as the radiation flux. Especially for Mercury and the primary 4 Jovian moons. My understanding is that the Jovian radiation belt is strong enough that we may never even land on them excepting perhaps short trips to Ganymede. The outer satellites are more possible along with the asteroids etc and Titan. And just staying warm on Titan will be a major struggle.
My understanding is that it takes about a year just to accelerate (at 1g) to close enough to c to really start to get the benefits of time dilution with an equal slow down time so still a few years ship time to Centauri. Then there is the fun of dealing with the dust and larger particles hitting the ship at close to c and of course the radiation flux.
Not quite. It takes a year of 1g acceleration just to get close enough to c to get the benefits of relativity, with another year to slow back down. Used to have a link to a nice table of travel times (ship) that I can no longer find. It was something like 4 years to Alpha Centuri, 5 years to 30 light years, 6 years to a hundred light years etc. The ultimate, without slowing down at the end, was 30 years to the Andromeda Galaxy and 70 years to the current edge of the visible universe.
As others mentioned, you need close to infinite energy for the longer trips and way more then we can imagine carrying for the shortest, with antimatter being the best we can currently imagine. Then there are the problems of traveling at a decent percentage of c, just hitting a grain of sand would be deadly, not to mention the radiation flux.
Probably just a typo somewhere or if you're like me, a mental hiccup. Shit, I thought that I said by mass for the total and yet I obviously didn't and of course the atmosphere numbers I quoted were by volume which I missed, having found the numbers I remembered.
I doubt very much that oxygen makes up 64% of the mass of the Earth. Do you have a citation?
According to https://en.wikipedia.org/wiki/..., the main composition of the Earth by mass is iron at 32.1% though I am somewhat surprised that oxygen is number 2 at 30.1%, which is a lot of oxygen. There are estimates that put the percent of oxygen in the crust at 47% which is close enough to half but still not 64%. And of course the atmosphere is mostly nitrogen at aprox 78% and almost 21% oxygen, thanks to the hard work of plants.
Possibly, it really depends on how much of the internals are exposed and whether the add-on developer wants to start all over.
We'll have to wait and see what choices Mozilla makes going forward though I do notice that the other browsers don't have anywhere near the add-on ecology, likely due to the add-ons having to use pure HTML/CSS/JS rather then lower level stuff.
Themes do need to be downloaded and replacing the default theme is pretty trivial as most all the UI is a theme (CSS and bitmaps) and part of the core, at least currently.
But don't worry, the long term plan seems to get rid of all customization, things like add-ons including add-blockers take having support in the main code base so will be removed and you will get a browser that acts exactly like the Mozilla Foundation wants rather then how the user wants
Does it support all the extensions? I thought that was about the whole point of using Firefox lately. That, and sometimes it behaves better in terms of resources, but this varies depending on the system and workload.
Supports most of the Firefox and Thunderbird extensions. Here's an automatic extension converter, http://addonconverter.fotokrai...
In terms of resources, I find SeaMonkey to actually be lighter, even with the included mail, newsgroups and IRC clients. It is also much better for Granny and other people who like a consistent interface and can even be themed to look like Firefox 3. Of course it depends on the same Gecko engine as Firefox so when Mozilla gets rid of themes and extensions, SeaMonkey will probably lose them as well.
The good news, they're getting rid of bloat, things such as xul. The bad news, no more xul based extensions (most all) so no more Tree Style Tab extension so all users who stick with Mozilla for the extensions won't have an excuse to not move to a different browser.
They seem determined to reduce the user base to 0%
Wrong. Socialism at heart is the people owning the means of production. While often this means the government, in the name of the people, owns the means of production, many socialists want nothing to do with (big) government. From https://en.wikipedia.org/wiki/...
Now whether practical is another discussion as it seems that any form of Libertarianism just allows a ruthless tyrant to move in and create an authoritarian State.
I bought one of those just a couple of years back, Was cheap, perhaps $5, and actually with it, my MP3 player sounded much better then any tape. Now I have a cheap CD player that also takes a USB stick with MP3s on it, and it sounds terrible, worse then the FM though CDs sound pretty good.
Often warming temperatures equals increasing precipitation due to the warmer air holding more moisture. In the case of the Antarctic, a continent that is mostly desert, the expectation should be more snowfall which can lead to more ice. Kind of surprised that snowfall is considered consistent. And of course if snowfall is increasing due to warming (numbers pulled from my ass and exaggerated) from -40 to -10, then the expectation should be more ice buildup.
The railroads had common-carrier status pushed on them in the late 1800's IIRC, this forced them to treat all customers the same and was sorta considered a right.
Thanks for the explanation.
All the non-profits accept foreign funding and engage in political activism, the difference was who had the ear of the PMO.
There were lots of problems around here with people being sent to wrong polling stations, mostly corrected by the ones who put a lot of effort into it, probably not corrected by ones who gave up. Then there were the other screw ups. My personal story was going to the Elections Canada web site to make sure my wife and I were still registered and it reporting we were. Then our voter cards came with the wrong name on my wifes card, Elections Canada still claimed she was registered in the name that she has on her ID. Took well over an hour to sort it out at the polling station, which luckily was not busy otherwise we would have to have given up. I know Harper didn't want the native Canadians to vote and Elections Canada helped.
Yes, the Liberals have fucked up the military as well including Paul Martin starting the fuck up the veterans thing, Harper seems to have tried to take it to a whole new level.
I also remember when OPEC decided to boost oil prices starting the whole hyper-inflation thing over the whole of the western world. I also remember that I did better then then now as wages went up as fast as inflation unlike now where wages are stagnant and prices continue to go up, especially those things that we need such as food, housing and fuel (gas is back up to $1.30 a litre here). Shit I used to be able to put money in the bank and get more back. Try that now. Whether the price and wage controls helped or made things worse is debatable. I also remember the FLQ and the War Measures Act, though I didn't feel personally threatened by it as I do with Bill C51.
I also remember Mulroney, who had the same respect for the average Canadian as most conservatives and the GST BS that saw prices go up another 7% while the manufacturers pocketed their tax savings, Then there was the free trade deal. Just like now, it was to give business free stuff. There's a reason that the PCs almost got shut out of Parliament (reduced to 2 seats). Then of course there was the safety deposit boxes full of $1000 bills that Mulroney swore he came about honestly.
I'm old enough to know that the Liberals are fucking horrible and the Conservatives are even fucking worse. I hate fucking authoritarianism and Harper takes the cake with his authoritarianism. It's jsut sad that so many people are looking for a Big Daddy.
Canadians for a start. Canadians would also be more receptive to pipelines full of (semi-)refined products instead of tar along with diluent. At least in case of accident it would float and be much easier to clean up.
The previous government was really focused on selling to China as they'll pay more then the Americans.
How hard would it be to twist that into "No Tax or Duty shall be laid on Articles produced and exported from any State."? Americans seem to be very good at creating new interpretations of their Constitution rather then just updating it.
I don't think there is much of a Canadian oil industry left as it is mostly owned by America, China and Malaysia.
It's not a conservative thing, it is an authoritarian thing. Authoritarians can show up under any parties banner though in democracies they do seem to be on the right side of the spectrum as often as not.
Harper was such an authoritarian that he didn't even let his own party members talk so we had an election where the Conservative candidate wouldn't even show up to town hall type all candidate meetings.
As a Canadian, I hate the idea of exporting our raw resources any which way and hopefully this will lead to doing some refining here and then piping the refined product elsewhere. More inefficient means of transport such as trains puts more pressure on the oil companies to be efficient. I also hate the fact that we're dependent on other countries to supply our fuel. America is bad enough with their strategic refinery shutdowns but depending on China and shipping raw product across the Pacific and refined product back does not seem right.
As it is, gas has just shot up 20 cents a litre in the last week here.
You would have liked Harpers small government. Things like shrinking Revenue Canada so all it can investigate is left wing non-profits, shrinking Election Canada so it can't even tell people where to vote accurately, little well encourage them, shrinking the military so all the moneys spent on killing brown people and buying the F35, a plane that's useless for the arctic, but no money for the injured vets returning. A huge propaganda department so continuous bombardment of ads telling us how great Harpers Government (not the Government of Canada) is doing and of course spying on the citizens as they might have the wrong politics.
Yes a small government that is big enough to go after its opponents and get their message out.
Oh also a government that can inherit a surplus and run a $56 billion deficit while telling us how fiscally responsible they are. At least they didn't waste those $2 billion on those welfare queen veterans and finally balanced the budget after 7 years of deficits.
One thing I remember is ex-fisheries scientists talking about being muzzled over things like where the cod breed and some discoveries about lobster breeding that some American scientists ended up getting credit for. There was also the destruction of the fisheries libraries.
Basically scientists muzzled just so Harper could practice his control fetish.
Almost anything would be an improvement on Harper, even the Conservatives seem to recognize this.