You seem to have run out of arguments, leaving only name-calling. Sad.
Well unlike you, I can't bring myself to predict economic details of civilization hundreds of years removed from now. I also have a pretty good idea of the limits of my knowledge and would never make the claims you do without actually doing the math. Then there is the fact I can't bring myself to ignore the laws of physics the way you do.
You're going to, what, mine the counterweight for ballast? Won't work - a space elevator becomes economical when it launches payloads that collectively exceed the mass of the counterweight. So you'd be, what, dragging asteroids over to mine for ballast? Seems unlikely (well, eventually a space elevator would help enable asteroid mining, but it would be some time).
When you lower a weight (the same weight? unlikely)
Yes because ballast and dead weight aren't things that are well understood / sarcasm
you give the pendulum another kick.
You aren't kicking much of anything. For someone who keeps going on about dampening this is a relatively small force applied over a relatively long time across the entire elevator.
Sure, this one's in the other direction, but that doesn't really help
Conservation of angular momentum is on the phone for you.
- this isn't an ideal, rigid pendulum where you could actually "brake" it that way.
Actually that is exactly what it is. Very nearly Ideal and rigid. What did you think would be needed to reach from the surface of the earth to geosynchronous orbit ?
You'll be adding energy to the system in either direction.
I'm done, I can tolerate ignorance, I can't tolerate willful stupidity.
I like the 1990's-era hands-off, anything-goes approach to the Internet a lot better than creepy crap like this:
Don't we all. Kind of Amazing how the Google/FB/ etc like net neutrality only as long as it doesn't filter them but are perfectly happy with their role in filtering everyone else.
Seeing as I spent a good deal of my life dealing with tuned circuitry, I probably have a better idea than you.
Try stopping a swinging pendulum, with a flexible string, from the point it hangs from.
That's nice all you are doing showing is you don't understand where the forces are being applied, which would be the climber and the descender respectively.
I would suggest you just get a rope and spend a few hours to build a climber so you could see the dynamics are nothing like you are describing but it seems other people have already done this
Plenty of money to be had, as long as there are still some younger folks left in these western nations who still have good hearing.
Isn't that the truth. The worst scam I ever saw was a brick being sold to audiophiles with the claim it would improve sound quality if you put it on top of your amp.
That's they whole point: you have to damp the energy faster than you add it.
Yes that is the whole point which is exactly what having balanced counterweights accomplishes. Once again the system is not the cable it is the cable the earth and the endpoint weight
They have a lot more friction (and air resistance, and they make noise, etc). Plus, people don't just keep adding energy to them, or they would start spinning around or slide off the desk
You failed physics I take it ? Or reading comprehension ?
"The energy is going to go in and out of three reservoirs involved. The rotational speed of the earth, the orbital speed of the counterweight, and tension in the cable itself."
Even if you didn't use a counterweight the net kinetic energy imparted to the system over a cycle would be zero.
The Elisha Otis reference should have been a dead giveaway that I was laughing my ass off.
When your start a normal pendulum swinging, or pluck a guitar string, the energy is eventually dissipated through interaction with the air and friction associated with bending the string (which is quickly lost as heat by conduction). That won't happen with a space elevator. A material suitable for making the cable will shed very little energy through internal friction (otherwise it will get quite hot, as radiative cooling in space sucks).
You aren't plucking this cable, you are applying a constant and relatively small force over a period of hours to days. The energy is going to go in and out of three reservoirs involved. The rotational speed of the earth, the orbital speed of the counterweight, and tension in the cable itself.
The complex pendulum will keep accumulating energy until it achieves "rapid unscheduled disassembly" in some unpredictable way.
Yes the same way people are being killed all over the place by executive desk toys that are spontaneously undergoing rapid disassembly. The cable may well have some sort of material fatigue but this experiment wont tell you a damn thing about it, as it isn't even testing a material you would build such a cable out of.
Oh and no you don't need to be in space to test that either.
I mean, seriously, Sarah Palin has proved herself so stupid and useless that she never managed to even finish her term as governor in Alaska. So stupid and useless that even Fox News fired her. So, you're pretending that 1: Dick Cheney was in charge? (You may be correct, after all, he made a hell of a lot of money from those "two incredibly successful wars.") 2: Those two wars were actually successful. I mean, for anyone other than Mr. Cheney and his friends, who made so much money from them.
Anger isn't an argument, it's just you demonstrating you can't construct a logical structure.
Anyway just what was your reaction when she said we could drill our way to energy independence and that Putin couldn't be trusted ? Just going guess here you went and voted Obama, which got the Ukraine annexed, and nearly destroyed our energy industry.
As to the wars, I would call taking down what was the 5th largest military in the world in a little under 6 weeks very successful. I'd call the fact that we are now able to put together alliances between Israel, Saudi Arabia and other Arab states a direct result of that.
Now if you want stupid and unsuccessful and illegal there was the Iran Nuclear Deal.
You see how you form a case for a position ? Perhaps with a bit of practice you might be able to do this for yourself. This is something Ms. Palin seems capable of doing but you by the evidence aren't.
The hard problem for a space elevator, even aside from needing unobtanium, is the lack of any way to damn the pendulum-like energy fed into the system with every payload lifted. Only half the energy needed to get to GEO is in lifting, the other half is in accelerating the payload laterally. That energy will be added to the system with every load lifted, and there's no obvious way to damp it.
Actually for progressives "Fair and Balanced" now means biased and rigged. Which I suppose would make it appropriate but they never use the term to describe themselves.
They are materials science problems. Newtonian physics does the job of predicting what will happen extraordinarily well and quite frankly you could do the experiment on earth, with a centrifuge apparatus and learn more, and cost less. Something like this https://www.roadsideamerica.co... if you want to test your cable climber but you don't even need that.
Last Thursday, we asked how long it would take before Lanny Davis again changed his story about what his client, Michael Cohen, knows about President Trump. It turned out to be four days.
Meanwhile, CNN is standing by a story that relied in part on claims that Davis now says he never should’ve made.
It all started with last month’s bombshell CNN report that Cohen, Trump’s former personal attorney, was claiming his then-boss knew in advance of the 2016 Trump Tower meeting between campaign officials and a Russian operative.
The CNN story said outright that Davis had declined comment, implying that he wasn’t a source — even though Davis now says he was, and CNN admits it. That same night, Davis confirmed the story anonymously to this newspaper and to The Washington Post.
So are you merely a rube ? Or do you enjoy having a hand stuck up your ass
Yeah I mean it's not like Palin said anything like we could be energy independent by drilling, or that Vladimir Putin couldn't be trusted Or, Dick Cheney was actually competent in his position and we had two incredibly successful wars during his term in office. Or, Donald Trump's apocalypse has the lowest unemployment rate in 40 years, has North Korea moving towards disarmament and is finally dealing with China's policies of outright theft.
As opposed to the Democrats who came up with, "If you like your doctor you can keep your doctor", "turned Iraq from a win into a loss, never closed gitmo, and thanks to them we are still fighting in afghanistan, and sold 20% of American Uranium production to the Russians"
Slashdot Mirror
If that isn't a match made in hell I don't know what is.
You seem to have run out of arguments, leaving only name-calling. Sad.
Well unlike you, I can't bring myself to predict economic details of civilization hundreds of years removed from now. I also have a pretty good idea of the limits of my knowledge and would never make the claims you do without actually doing the math. Then there is the fact I can't bring myself to ignore the laws of physics the way you do.
Must be nice to think you know everything.
You're going to, what, mine the counterweight for ballast? Won't work - a space elevator becomes economical when it launches payloads that collectively exceed the mass of the counterweight. So you'd be, what, dragging asteroids over to mine for ballast? Seems unlikely (well, eventually a space elevator would help enable asteroid mining, but it would be some time).
Too stupid for words.
Yeah good luck with that chief.
When you lower a weight (the same weight? unlikely)
Yes because ballast and dead weight aren't things that are well understood / sarcasm
you give the pendulum another kick.
You aren't kicking much of anything. For someone who keeps going on about dampening this is a relatively small force applied over a relatively long time across the entire elevator.
Sure, this one's in the other direction, but that doesn't really help
Conservation of angular momentum is on the phone for you.
- this isn't an ideal, rigid pendulum where you could actually "brake" it that way.
Actually that is exactly what it is. Very nearly Ideal and rigid. What did you think would be needed to reach from the surface of the earth to geosynchronous orbit ?
You'll be adding energy to the system in either direction.
I'm done, I can tolerate ignorance, I can't tolerate willful stupidity.
Here's a free course in freshman physics
http://go.une.edu/sphp-program...
Reply again when you can say something intelligent.
When you move a weight to the station, the pendulum must swing "backwards" to conserve angular momentum
And when you simultaneously move a weight down the station the opposite happens. Really ring up whoever taught you physics and demand your money back.
I like the 1990's-era hands-off, anything-goes approach to the Internet a lot better than creepy crap like this:
Don't we all. Kind of Amazing how the Google/FB/ etc like net neutrality only as long as it doesn't filter them but are perfectly happy with their role in filtering everyone else.
Yeah, you don't understand what "damping" means.
Seeing as I spent a good deal of my life dealing with tuned circuitry, I probably have a better idea than you.
Try stopping a swinging pendulum, with a flexible string, from the point it hangs from.
That's nice all you are doing showing is you don't understand where the forces are being applied, which would be the climber and the descender respectively.
I would suggest you just get a rope and spend a few hours to build a climber so you could see the dynamics are nothing like you are describing but it seems other people have already done this
https://youtu.be/a8xduff1yyM?t...
Feel free to try and actually think about what you say in the future.
or work for the interests of who you are working for.
The American people?
Oh you mean the people that voted him in office ? Or the people who think they know better how to run everyone's life ?
Do you understand what "damping" means?
Do you understand how big the earth is ?
Cycle of what
What goes up comes down. It's a loop not a one way move.
Really you would do much better if you actually tried reading.
why would you even need the passcode at that point?
You tell me why you asked the question
which might not be a bad thing if it means Hollywood leaves the classics alone.
May Ted Turner burn in hell for colorizing the greats of noir.
More importantly, why would you even need the passcode at that point?
People do insecure things like reuse passwords or minor variants.
https://www.engadget.com/2018/...
What's more it's going to be a long long time for old content to be upgraded.
Plenty of money to be had, as long as there are still some younger folks left in these western nations who still have good hearing.
Isn't that the truth. The worst scam I ever saw was a brick being sold to audiophiles with the claim it would improve sound quality if you put it on top of your amp.
That's they whole point: you have to damp the energy faster than you add it.
Yes that is the whole point which is exactly what having balanced counterweights accomplishes. Once again the system is not the cable it is the cable the earth and the endpoint weight
They have a lot more friction (and air resistance, and they make noise, etc). Plus, people don't just keep adding energy to them, or they would start spinning around or slide off the desk
You failed physics I take it ? Or reading comprehension ?
"The energy is going to go in and out of three reservoirs involved. The rotational speed of the earth, the orbital speed of the counterweight, and tension in the cable itself."
Even if you didn't use a counterweight the net kinetic energy imparted to the system over a cycle would be zero.
You can use an insanely elaborate way to read the password instead of just monitoring the input ?
Rube Goldberg would be proud.
Your reply was a bit of a non-sequitur.
The Elisha Otis reference should have been a dead giveaway that I was laughing my ass off.
When your start a normal pendulum swinging, or pluck a guitar string, the energy is eventually dissipated through interaction with the air and friction associated with bending the string (which is quickly lost as heat by conduction). That won't happen with a space elevator. A material suitable for making the cable will shed very little energy through internal friction (otherwise it will get quite hot, as radiative cooling in space sucks).
You aren't plucking this cable, you are applying a constant and relatively small force over a period of hours to days. The energy is going to go in and out of three reservoirs involved. The rotational speed of the earth, the orbital speed of the counterweight, and tension in the cable itself.
The complex pendulum will keep accumulating energy until it achieves "rapid unscheduled disassembly" in some unpredictable way.
Yes the same way people are being killed all over the place by executive desk toys that are spontaneously undergoing rapid disassembly. The cable may well have some sort of material fatigue but this experiment wont tell you a damn thing about it, as it isn't even testing a material you would build such a cable out of.
Oh and no you don't need to be in space to test that either.
I mean, seriously, Sarah Palin has proved herself so stupid and useless that she never managed to even finish her term as governor in Alaska.
So stupid and useless that even Fox News fired her. So, you're pretending that
1: Dick Cheney was in charge? (You may be correct, after all, he made a hell of a lot of money from those "two incredibly successful wars.")
2: Those two wars were actually successful. I mean, for anyone other than Mr. Cheney and his friends, who made so much money from them.
Anger isn't an argument, it's just you demonstrating you can't construct a logical structure.
Anyway just what was your reaction when she said we could drill our way to energy independence and that Putin couldn't be trusted ? Just going guess here you went and voted Obama, which got the Ukraine annexed, and nearly destroyed our energy industry.
As to the wars, I would call taking down what was the 5th largest military in the world in a little under 6 weeks very successful. I'd call the fact that we are now able to put together alliances between Israel, Saudi Arabia and other Arab states a direct result of that.
Now if you want stupid and unsuccessful and illegal there was the Iran Nuclear Deal.
You see how you form a case for a position ? Perhaps with a bit of practice you might be able to do this for yourself. This is something Ms. Palin seems capable of doing but you by the evidence aren't.
The hard problem for a space elevator, even aside from needing unobtanium, is the lack of any way to damn the pendulum-like energy fed into the system with every payload lifted. Only half the energy needed to get to GEO is in lifting, the other half is in accelerating the payload laterally. That energy will be added to the system with every load lifted, and there's no obvious way to damp it.
Oh way to dump on Elisha Otis.
counterweight. https://en.wikipedia.org/wiki/...
Or there is the ever popular and very scenic funicular https://www.google.com/search?...
If you are ever in Switzerland don't miss out it's a wonderful day trip to ride to the top of a mountain on one.
As to the double pendulum problem you solve that by making the anchor point large. Which is one of the reasons you need unobtanium to build the thing.
Where, at the end of the day, is your free oxygen?
It's an intermediate product not an end product, and it diffuses into the zirconium
https://www.osti.gov/servlets/...
Actually for progressives "Fair and Balanced" now means biased and rigged. Which I suppose would make it appropriate but they never use the term to describe themselves.
They are materials science problems.
Newtonian physics does the job of predicting what will happen extraordinarily well and quite frankly you could do the experiment on earth, with a centrifuge apparatus and learn more, and cost less. Something like this https://www.roadsideamerica.co... if you want to test your cable climber but you don't even need that.
Wow not even a link. Lets look at how major news organizations report the news about the president
https://nypost.com/2018/08/29/...
Last Thursday, we asked how long it would take before Lanny Davis again changed his story about what his client, Michael Cohen, knows about President Trump. It turned out to be four days.
Meanwhile, CNN is standing by a story that relied in part on claims that Davis now says he never should’ve made.
It all started with last month’s bombshell CNN report that Cohen, Trump’s former personal attorney, was claiming his then-boss knew in advance of the 2016 Trump Tower meeting between campaign officials and a Russian operative.
The CNN story said outright that Davis had declined comment, implying that he wasn’t a source — even though Davis now says he was, and CNN admits it. That same night, Davis confirmed the story anonymously to this newspaper and to The Washington Post.
So are you merely a rube ? Or do you enjoy having a hand stuck up your ass
Yeah I mean it's not like Palin said anything like we could be energy independent by drilling, or that Vladimir Putin couldn't be trusted
Or, Dick Cheney was actually competent in his position and we had two incredibly successful wars during his term in office.
Or, Donald Trump's apocalypse has the lowest unemployment rate in 40 years, has North Korea moving towards disarmament and is finally dealing with China's policies of outright theft.
As opposed to the Democrats who came up with, "If you like your doctor you can keep your doctor", "turned Iraq from a win into a loss, never closed gitmo, and thanks to them we are still fighting in afghanistan, and sold 20% of American Uranium production to the Russians"
Tell me how do you wall this stuff off ?