The cable is pulled tight by the satelite wanting to fly off into space. It's a bit beyond geostationary orbit, so it isn't actually orbiting in the conventional way.
Not quite....
Based on orbital dynamics:
1. A single structure will orbit at the speed of it's center of mass.
2. Only thoes objects that orbit at geosync. orbit (about 23K KM on earth) will remain over the same spot.
3. Long object will orient in a radial manner through the center of mass of the parent object.
THEREFORE:
The cable is not held in place by the counter weight. The cable is kept taught by the counter weight. However most of the tension in the cable comes from the mass of the cable rather than the counter weight.
The cable's center of mass absolutly HAS to be at geo-sync orbit or the cable will move away from the base station.
Now as per the grandparent's original proposal...
I see what you are saying and it could in theory work...
THe problem is the cable will weigh gigatons. It will take an extremely large amount of energy to get it moving and stop it if there are any problems. There will be large amounts of enery lost as it moves through the atmosphere which will cause massive heat buildup and electrical discarge. This will cause excess tension on the already strained cable lowering effective carrying capacity.
Plus the big one....the two sides of the cable will want to move toegther. So you will have to build a counter weight which can prevent the gigatons of mass from coming together...and have this system in a fairly small space...a few hundred feet max.
The idea of a counter weight to assist in lifting/lowering is an important one. It will dramatically lower costs and help maintain the cables center of mass. However turning the whole cable into a huge rotating band is far less efficient and would not be as usefull as a much similer system.
A space elevator/ground to orbit tether is really a misnomer.
It is actually a 120,000 KM long satalite that is in orbit around the planet. It just happens to orbit once per day.
This is an incredibaly delicate system. THe mass has to be exactly balanced or your cable will get out of sync and start dragging on the ground...taking out cities in the process.
The only way it COULD work is if you had a double cable attached at the peak...so each cable is long enough to reach the ground by itself. Then as you move your payloads around it should stay balanced...the downside is you have to find a place to store the 120,000+ KM of cable on the ground.
A realistic model is having a standard cable that holds the weight and having a 2nd cable that is used as a pully. This could be powered at the peak as you suggested.
THe downside is that the pully system uses up payload capacity and we are already running close to max with current materials...even if we could manufacture 120,000 kM nanotube cables.
Actually people have been arrested for possesing "Weapons of Mass Destruction" for driving past a Coast Guard station with a box of industrial grade dynomite in the back.
They were arrested and detained for 4 months before released.
They had a permit and good reason for going that way.
Wow. If you can describe babies as "tissue that is about 5 minutes from the garbage can," then what's stopping you from describing undesirable adults the same way? Your position is, in a word, insane.
Sorry, but not true. Embroy's ARE just tissue with many cancerous qualities until they are capable of surving on their own. The means roughly the 7th month of pregnancy. My views are reasonable and entierly consistent.
I have no problem with IVF or stem cell research. I also have no problem with abortion before the 7th month. It is not "murder" or unethical. It is a very clear, straight forward and easily defended. After all it is biblical, according to leviticus an unborn child is viewed as property and NOT a person.
A full grown adult IS alive and a person and significantly different than a group of 6-12 cells.
IVF is a VERY low success rate process and is very expensive with no garuntee of success. Plus multiple steps contribute to the difficulties in this process.
#1 getting the eggs....women are given a hormon regiment that makes them ovulate many sometimes dozens of eggs....this is fundamental biological reaction and it is impossible to say only get a few.
#2 Egg fertilization is not as simple as tossing eggs in with sperm. THe sperm has to be directly injected into the egg. this process can damage the egg or sperm or both therefore in order to get enough fertilized eggs to have any chance of success you must make LOTS.
#3 Most IVF is done for thoes couples that either have a high risk for genetic problems OR have had many miscarages in the past. Therefore again you just make a lot to screen the embroys that have the genetic problems you were watching for or the fertilization problems that were causing miscarriage or thoes that were damaged by step #2. This here is a good place to get you stem cells. With the exception of the first group the others are incapable of developing to term and WILL die. However you will probably be able to get some usefull stem cell lines from them. Regardless you have to make lots of fertilized eggs.
#4 You need to implant multiple eggs to have a good chance of getting a viable pregnancy. However there is always a chance of multiple successful implantations and thus you start lowering the chance of a successful birth if you put in more than 6 or 7.
So after all of this, due to biology, the damage of the process and the fundamental reasons people pay the 10's of thousands of dollars for the CHANCE of having children you are obligated to fertilize a lot of eggs.
Now say luck is on your side or the technician is having a good day....instead of the 5-6 good eggs that you WANT you get 20 or so....
IVF facilities are businesses. they are in the business to make a profit. With that in mind they are not going to waste the time, money and resources "manufacturing babies like livestock." The extra embryo's are an unavoidable consequence of the process.
Therefore, as another thread covered, if you objection to stem cell research you HAVE to object ot IVF.
FINALLY as to YOUR options...
The 4th "option" is not availible if you use IVF. They extra eggs are an unplanned consequence of IVF and are already minimized as much as possible.
The 3rd option doesn't apply to what I was talking about. If you read my first post you see that I talk about providing the extra embryos to other couples. Unfortunetly there is still an excess of embryo's
So YOU are now reduced to the two options I proposed:
It IS true the the embryo has to be destroyed to extract the stem cells.
But so what.....
The blastasts that we are talking about are the extra's from invitro-fertilization clinics. To help assure success IVF HAS to create far more embryo's then is actually used. What woman wants 20 babies at a time...it is not uncommon for the clinics to create that many embryos or more. The extras are either stored for future potential use by the parents or with the parents permission they are given to other less fortunet couples or THEY ARE THROWN OUT.
So what we are talking about here is NOT killing an embryo that someday could get itself born. We are talking about making use of tissue that is about 5 minutes from the garbage can.
Your options are:
#1 throw them out and kill them anyway
or
#2 use them for the betterment of society and the SAVING of lives.
It IS true the the embryo has to be destroyed to extract the stem cells.
But so what.....
The blastasts that we are talking about are the extra's from invitro-fertilization clinics. To help assure success IVF HAS to create far more embryo's then is actually used. What woman wants 20 babies at a time...it is not uncommon for the clinics to create that many embryos or more. The extras are either stored for future potential use by the parents or with the parents permission they are given to other less fortunet couples or THEY ARE THROWN OUT.
So what we are talking about here is NOT killing an embryo that someday could get itself born. We are talking about making use of tissue that is about 5 minutes from the garbage can.
Your options are:
#1 throw them out and kill them anyway
or
#2 use them for the betterment of society and the SAVING of lives.
I have been selling on ebay for about 16 months now. I started with an initial investment of $1000.
Right now I have an inventory of over 3000 pieces and about $1500 worth of equipment for a total business worth of around 30K.
Almost all of my surplus money has been pumped right back into the business.
Once I am done expanding I will end up making about 5% profit off of about 750K in sales a year or around $37K. This will take me about 6 hours a week to manage. So once I stabalise I will probably be making about 100/hour.
Currently I use auctions with a Buy-it-now, my auction listing time is using a random walk constrained by recent sales histories (Each day adjusts it's listing time based on the last two weeks record) and they end around 7 PM. I USE to start at a penny but now I am starting at $9.90 as an experiment. I use Galley, 2nd title, google advertising.
I know ALL the tricks and have decided on which ones work best for me.
B&M stores often times operate on under 0.1% profit margin.
This is the downside of retail...it is expensive. You have to pay fees, pay shipping, pay rent/utilities and THEN buy the actual things you are selling.
Last year I grossed almost $250 K...that's a quarter million!
Of that I took about 12 K in profit.
Ebay is NOT a very profitable place to operate anymore. People are NOT becoming rich....at least not often.
I can almost understand the $200 license...standard government fines....but why the classes/apprenticeship.
THe ENTIER point of ebay is that THEY are the auctioneer not you. You are simply the provider of the goods you don't actually participate the in auciton itself.
This law is stupid and will only drive income tax revenue from Ohio. I just thank god that I do not live in a state that is considering this.
Last year I grossed almost $250 K...that's a quarter million!
Of that I took about 12 K in profit.
Ebay is NOT a very profitable place to operate anymore. People are NOT becoming rich....at least not often.
I can almost understand the $200 license...standard government fines....but why the classes/apprenticeship.
THe ENTIER point of ebay is that THEY are the auctioneer not you. You are simply the provider of the goods you don't actually participate the in auciton itself.
This law is stupid and will only drive income tax revenue from Ohio. I just thank god that I do not live in a state that is considering this.
well, if the perso who designed the craft has even a tiny brain they would have made compartments for the fuel....
So why not fill one tank with fuel and fill the others with water...
This lets you test what happens at full weight AND you can dump the water before landing...
Now you may need to do this test once per tank on the plane since only one tank will actually have feul in it but it would still be cheaper than a one shot deal...after all they probably had a large number of things they needed to check in flight besides the fuel
Slashdot Mirror
The cable is pulled tight by the satelite wanting to fly off into space. It's a bit beyond geostationary orbit, so it isn't actually orbiting in the conventional way.
Not quite....
Based on orbital dynamics:
1. A single structure will orbit at the speed of it's center of mass.
2. Only thoes objects that orbit at geosync. orbit (about 23K KM on earth) will remain over the same spot.
3. Long object will orient in a radial manner through the center of mass of the parent object.
THEREFORE:
The cable is not held in place by the counter weight. The cable is kept taught by the counter weight. However most of the tension in the cable comes from the mass of the cable rather than the counter weight.
The cable's center of mass absolutly HAS to be at geo-sync orbit or the cable will move away from the base station.
Now as per the grandparent's original proposal...
I see what you are saying and it could in theory work...
THe problem is the cable will weigh gigatons. It will take an extremely large amount of energy to get it moving and stop it if there are any problems. There will be large amounts of enery lost as it moves through the atmosphere which will cause massive heat buildup and electrical discarge. This will cause excess tension on the already strained cable lowering effective carrying capacity.
Plus the big one....the two sides of the cable will want to move toegther. So you will have to build a counter weight which can prevent the gigatons of mass from coming together...and have this system in a fairly small space...a few hundred feet max.
The idea of a counter weight to assist in lifting/lowering is an important one. It will dramatically lower costs and help maintain the cables center of mass. However turning the whole cable into a huge rotating band is far less efficient and would not be as usefull as a much similer system.
perhaps because it won't work....
A space elevator/ground to orbit tether is really a misnomer.
It is actually a 120,000 KM long satalite that is in orbit around the planet. It just happens to orbit once per day.
This is an incredibaly delicate system. THe mass has to be exactly balanced or your cable will get out of sync and start dragging on the ground...taking out cities in the process.
The only way it COULD work is if you had a double cable attached at the peak...so each cable is long enough to reach the ground by itself. Then as you move your payloads around it should stay balanced...the downside is you have to find a place to store the 120,000+ KM of cable on the ground.
A realistic model is having a standard cable that holds the weight and having a 2nd cable that is used as a pully. This could be powered at the peak as you suggested.
THe downside is that the pully system uses up payload capacity and we are already running close to max with current materials...even if we could manufacture 120,000 kM nanotube cables.
Or you have a light that is completly covered in reflective material except for one fiber optic cable that then is spliced into the incoming sunlight.
You will have no moving parts and get 100% of the light from the bulb.
The NERD!
Able to spot a monitor flicker in the blink oif an eye!
the difference with this system is that it has electric light along side the sunlight.
They then monitor the incoming light level and use the electric lights to balance the difference.
What that means is that the light level is stable and regardless of how cloudy the day is it is STILL cheaper than all electric light.
I wonder what they do when the sunlight exceeds the desiered level....maybe slide solar cells over part of the sunlight intake...
To be fair, if you kill off all the people and contaminate the area you are destroying it just as well as turning it into slag and a crater.
Rome salted the earth of Carthage and that destroyed that civilization....
Actually people have been arrested for possesing "Weapons of Mass Destruction" for driving past a Coast Guard station with a box of industrial grade dynomite in the back.
They were arrested and detained for 4 months before released.
They had a permit and good reason for going that way.
Bush knew he was on somewhat thin ice with the Patriot act. Therefore he didn't push it too far.
The problem is that now there is legal precidence for abuse later.
We need to get rid of it incase the next president is even worse!
Wow. If you can describe babies as "tissue that is about 5 minutes from the garbage can," then what's stopping you from describing undesirable adults the same way? Your position is, in a word, insane.
Sorry, but not true. Embroy's ARE just tissue with many cancerous qualities until they are capable of surving on their own. The means roughly the 7th month of pregnancy. My views are reasonable and entierly consistent.
I have no problem with IVF or stem cell research. I also have no problem with abortion before the 7th month. It is not "murder" or unethical. It is a very clear, straight forward and easily defended. After all it is biblical, according to leviticus an unborn child is viewed as property and NOT a person.
A full grown adult IS alive and a person and significantly different than a group of 6-12 cells.
yes I did...because I posted it under the wrong parent and therefore reposted it where it was suppose to go.
Please read MY reply to the other post.
Correct, I mis-spelled the big word..
IVF is a VERY low success rate process and is very expensive with no garuntee of success. Plus multiple steps contribute to the difficulties in this process.
#1 getting the eggs....women are given a hormon regiment that makes them ovulate many sometimes dozens of eggs....this is fundamental biological reaction and it is impossible to say only get a few.
#2 Egg fertilization is not as simple as tossing eggs in with sperm. THe sperm has to be directly injected into the egg. this process can damage the egg or sperm or both therefore in order to get enough fertilized eggs to have any chance of success you must make LOTS.
#3 Most IVF is done for thoes couples that either have a high risk for genetic problems OR have had many miscarages in the past. Therefore again you just make a lot to screen the embroys that have the genetic problems you were watching for or the fertilization problems that were causing miscarriage or thoes that were damaged by step #2. This here is a good place to get you stem cells. With the exception of the first group the others are incapable of developing to term and WILL die. However you will probably be able to get some usefull stem cell lines from them. Regardless you have to make lots of fertilized eggs.
#4 You need to implant multiple eggs to have a good chance of getting a viable pregnancy. However there is always a chance of multiple successful implantations and thus you start lowering the chance of a successful birth if you put in more than 6 or 7.
So after all of this, due to biology, the damage of the process and the fundamental reasons people pay the 10's of thousands of dollars for the CHANCE of having children you are obligated to fertilize a lot of eggs.
Now say luck is on your side or the technician is having a good day....instead of the 5-6 good eggs that you WANT you get 20 or so....
IVF facilities are businesses. they are in the business to make a profit. With that in mind they are not going to waste the time, money and resources "manufacturing babies like livestock." The extra embryo's are an unavoidable consequence of the process.
Therefore, as another thread covered, if you objection to stem cell research you HAVE to object ot IVF.
FINALLY as to YOUR options...
The 4th "option" is not availible if you use IVF. They extra eggs are an unplanned consequence of IVF and are already minimized as much as possible.
The 3rd option doesn't apply to what I was talking about. If you read my first post you see that I talk about providing the extra embryos to other couples. Unfortunetly there is still an excess of embryo's
So YOU are now reduced to the two options I proposed:
Are you for:
#1 just throwing the extras out
or
#2 using them to benifit society.
It IS true the the embryo has to be destroyed to extract the stem cells.
But so what.....
The blastasts that we are talking about are the extra's from invitro-fertilization clinics. To help assure success IVF HAS to create far more embryo's then is actually used. What woman wants 20 babies at a time...it is not uncommon for the clinics to create that many embryos or more. The extras are either stored for future potential use by the parents or with the parents permission they are given to other less fortunet couples or THEY ARE THROWN OUT.
So what we are talking about here is NOT killing an embryo that someday could get itself born. We are talking about making use of tissue that is about 5 minutes from the garbage can.
Your options are:
#1 throw them out and kill them anyway
or
#2 use them for the betterment of society and the SAVING of lives.
Personally I choose #2
Sorry....I meant the GRANDPARENT...this is what I get for typing too fast.
It IS true the the embryo has to be destroyed to extract the stem cells.
But so what.....
The blastasts that we are talking about are the extra's from invitro-fertilization clinics. To help assure success IVF HAS to create far more embryo's then is actually used. What woman wants 20 babies at a time...it is not uncommon for the clinics to create that many embryos or more. The extras are either stored for future potential use by the parents or with the parents permission they are given to other less fortunet couples or THEY ARE THROWN OUT.
So what we are talking about here is NOT killing an embryo that someday could get itself born. We are talking about making use of tissue that is about 5 minutes from the garbage can.
Your options are:
#1 throw them out and kill them anyway
or
#2 use them for the betterment of society and the SAVING of lives.
Personally I choose #2
Now as per my original argument. THe ONLY reason I can do this and maintain very good custoemr service is automattion I designed.
The average seller can't do nearly this much and will be neged out of existence if the try.
Ebay sellers typically operate on a very slim margin and if Ohio trys to get some they will just end up driving it away.
Actually, what I said was "I took 12K in profit"
I have been selling on ebay for about 16 months now. I started with an initial investment of $1000.
Right now I have an inventory of over 3000 pieces and about $1500 worth of equipment for a total business worth of around 30K.
Almost all of my surplus money has been pumped right back into the business.
Once I am done expanding I will end up making about 5% profit off of about 750K in sales a year or around $37K. This will take me about 6 hours a week to manage. So once I stabalise I will probably be making about 100/hour.
Currently I use auctions with a Buy-it-now, my auction listing time is using a random walk constrained by recent sales histories (Each day adjusts it's listing time based on the last two weeks record) and they end around 7 PM. I USE to start at a penny but now I am starting at $9.90 as an experiment. I use Galley, 2nd title, google advertising.
I know ALL the tricks and have decided on which ones work best for me.
Yes I am a true "powerseller."
why? I am currently making $40-50 an hour.
:-)
Just because I have a high overhead does not mean I am getting nothing for my time
Fine...the software is the auctioneer.
Regardless, knowing how to spot bids will NOT help me or my customers.
Walmart operates on about 5% prfoit margin.
B&M stores often times operate on under 0.1% profit margin.
This is the downside of retail...it is expensive. You have to pay fees, pay shipping, pay rent/utilities and THEN buy the actual things you are selling.
I sell jewelery.
Any yes..I am doing fairly well but I designed my own software to automate everything...so it take me under 5 minutes a day to manage 400 auctions.
This is not usual. Most people can't get away with this and it then becomes much less profitable.
search for clonan_discount_jeweler
I have sold 16000 items last year with an average gross income/item of $15.
I DO sell on ebay.
I sell part time, maybe 5 hours a week.
Last year I grossed almost $250 K...that's a quarter million!
Of that I took about 12 K in profit.
Ebay is NOT a very profitable place to operate anymore. People are NOT becoming rich....at least not often.
I can almost understand the $200 license...standard government fines....but why the classes/apprenticeship.
THe ENTIER point of ebay is that THEY are the auctioneer not you. You are simply the provider of the goods you don't actually participate the in auciton itself.
This law is stupid and will only drive income tax revenue from Ohio. I just thank god that I do not live in a state that is considering this.
I DO sell on ebay.
I sell part time, maybe 5 hours a week.
Last year I grossed almost $250 K...that's a quarter million!
Of that I took about 12 K in profit.
Ebay is NOT a very profitable place to operate anymore. People are NOT becoming rich....at least not often.
I can almost understand the $200 license...standard government fines....but why the classes/apprenticeship.
THe ENTIER point of ebay is that THEY are the auctioneer not you. You are simply the provider of the goods you don't actually participate the in auciton itself.
This law is stupid and will only drive income tax revenue from Ohio. I just thank god that I do not live in a state that is considering this.
it all depends on how well you dry them out afterwards :-)
well, if the perso who designed the craft has even a tiny brain they would have made compartments for the fuel....
So why not fill one tank with fuel and fill the others with water...
This lets you test what happens at full weight AND you can dump the water before landing...
Now you may need to do this test once per tank on the plane since only one tank will actually have feul in it but it would still be cheaper than a one shot deal...after all they probably had a large number of things they needed to check in flight besides the fuel