Wall Observer BTC/USD - Bitcoin price movement tracking & discussion

[OutOfMemory]

Space elevator: the noob Newtonian dabbler in me has a question.

Won't a sufficiently high/massive elevator slow down this mudball's rotation? As in, longer days? Conservation of angular momentum and all that. Please make me feel safe again. Thanks.

If it was that heavy, what do you propose to anchor it to?  A large tent peg?

No because the space elevator is rotating the earth at the same speed as the earth. Also the material came from earth so it's still conservation of energy and mass.

It's mass doesn't matter because it's hanging from space.
You don't need to tether it because it's hanging down from space so you just need some concrete block at the bottom that weighs more than the counter weight in space.

Still some things that seem not right to me...

1. Gravity vs. weight.

Weight is a gravitational-realtive unit.

Questions:
Isn't the counterweight in space much lighter because of the distance?

2. Mass vs rotation.

As an example: When doing a flip/backflip you pull arms and legs to the body, to speed up the rotation (or you would just land on your head). There is no mass added/reduced and still extending arms and legs slows down the rotation. Since there is extended mass (but little, in relation to the planet), it has to have some effect on rotational speed too. Maybe the weight/distance problem from (1) adds to it, because you'd need greater mass in space to act as counterweight, which leads to

3. counter"weight" vs. payload:

The counterweight in space is lighter than the weight (payload) on the ground, because of the distance and lack of gravity, right? How would it be even possible to send the space-weight down and at the same time pull the ground-weight up?

These are the main aspects that just don't add up for me.
Or is there a very basic error i'm making in my assumptions?

What google trends says about "blockchian"? as expected almost zero results before the creation of Wikipedia page and that was in 2014.



More strange google have only 179 results for the word "blockchain".

Google didn't invent the blockchain. Otherwise, a search for "encryption" would deliver tens of thousands of results featuring the term "blockchain", along with some blockchain ads. Internet politics. Shitty as everything political.

A word on yesterday's rise in BTC price:

All my friends like tits. Me too, but i like shoulders even more. Preferably with heads in between 

[Wilhelm]

Space elevator: the noob Newtonian dabbler in me has a question.

Won't a sufficiently high/massive elevator slow down this mudball's rotation? As in, longer days? Conservation of angular momentum and all that. Please make me feel safe again. Thanks.

If it was that heavy, what do you propose to anchor it to?  A large tent peg?

No because the space elevator is rotating the earth at the same speed as the earth. Also the material came from earth so it's still conservation of energy and mass.

It's mass doesn't matter because it's hanging from space.
You don't need to tether it because it's hanging down from space so you just need some concrete block at the bottom that weighs more than the counter weight in space.

Still some things that seem not right to me...

1. Gravity vs. weight.

Weight is a gravitational-realtive unit.

Questions:
Isn't the counterweight in space much lighter because of the distance?

2. Mass vs rotation.

As an example: When doing a flip/backflip you pull arms and legs to the body, to speed up the rotation (or you would just land on your head). There is no mass added/reduced and still extending arms and legs slows down the rotation. Since there is extended mass (but little, in relation to the planet), it has to have some effect on rotational speed too. Maybe the weight/distance problem from (1) adds to it, because you'd need greater mass in space to act as counterweight, which leads to

3. counter"weight" vs. payload:

The counterweight in space is lighter than the weight (payload) on the ground, because of the distance and lack of gravity, right? How would it be even possible to send the space-weight down and at the same time pull the ground-weight up?

These are the main aspects that just don't add up for me.
Or is there a very basic error i'm making in my assumptions?


3.

Good points an just for the record I’m not a physicist so I’m trying  

1. Yes the counter weight has negative acceleration in reference to us because the rotation is pushing it away from earth. So negative artificial gravity.
The mass needs to be further out than geostationary orbit. So mass and/or distance into space need to be adjusted.
Too high and you overload the tether. Too low and it comes crashing to earth.
This all can be calculated. It’s safe to say you need a significant mass 10000km higher than geostationary orbit. The weight needs to be able to move in or move out to compensate for the mass going up and down the tether.

2.
Great point but this is based on the percentage mass you displace.
The tether will have the mass in the order of magnitude of 10000kg initially then beef it up 1000fold.
10,000,000kg is not a lot relative to the mass of the earth (5,972*10^24 kg).
Arms of a person I would estimate to be 5-10% of the total body mass.

P.S. launching a rocket doesn’t push earth out of the solar system based on Newton’s law. Nor can we stop earth rotating by walking on the surface. It does apply a force but negligible based on mass difference

[dieselmeister]

A friend just bought this one..... cool isn’t it

Wow! I like it ... I am no cat type, but I like it...

[Karartma1]

A friend just bought this one..... cool isn’t it

So long as he keeps being a corn #strongcat, I see no problem putting that on a wall or on the WO.
Is your friend having fun staying irrelevant or is he unlocking corn full potential?

[Arriemoller]

A friend just bought this one..... cool isn’t it

Yes, yes it is.
Where did he buy it?

[d_eddie]

-several snip snips-

Space elevator: the noob Newtonian dabbler in me has a question.

Won't a sufficiently high/massive elevator slow down this mudball's rotation? As in, longer days? Conservation of angular momentum and all that. Please make me feel safe again. Thanks.

If it was that heavy, what do you propose to anchor it to?  A large tent peg?

2. Mass vs rotation.

As an example: When doing a flip/backflip you pull arms and legs to the body, to speed up the rotation (or you would just land on your head). There is no mass added/reduced and still extending arms and legs slows down the rotation. Since there is extended mass (but little, in relation to the planet), it has to have some effect on rotational speed too. Maybe the weight/distance problem from (1) adds to it, because you'd need greater mass in space to act as counterweight, which leads to

2.
Great point but this is based on the percentage mass you displace.
The tether will have the mass in the order of magnitude of 10000kg initially then beef it up 1000fold.
10,000,000kg is not a lot relative to the mass of the earth (5,972*10^24 kg).
Arms of a person I would estimate to be 5-10% of the total body mass.

This is the angular momentum issue I had. if the mass ratio between the outstretched "arm" and the main body is in the order of 1e-17, the slowing down should be around 1e-12 sec/day. Quite tolerable. We'd need to buiild a thousand billion such elevators before the day slows by 1 second.

Another issue I had but left unvoiced was about the displacement of the earth+elevator system's center of mass, leading to rotation that is not only slowed down, but also somewhat eccentric wrt the "center of the earth". Given these back of the envelope calculations, the displacement/eccentricity are negligible too.

I'm feeling safe again. Thanks.

[Wilhelm]

Space elevator: the noob Newtonian dabbler in me has a question.

Won't a sufficiently high/massive elevator slow down this mudball's rotation? As in, longer days? Conservation of angular momentum and all that. Please make me feel safe again. Thanks.

If it was that heavy, what do you propose to anchor it to?  A large tent peg?

2. Mass vs rotation.

As an example: When doing a flip/backflip you pull arms and legs to the body, to speed up the rotation (or you would just land on your head). There is no mass added/reduced and still extending arms and legs slows down the rotation. Since there is extended mass (but little, in relation to the planet), it has to have some effect on rotational speed too. Maybe the weight/distance problem from (1) adds to it, because you'd need greater mass in space to act as counterweight, which leads to

2.
Great point but this is based on the percentage mass you displace.
The tether will have the mass in the order of magnitude of 10000kg initially then beef it up 1000fold.
10,000,000kg is not a lot relative to the mass of the earth (5,972*10^24 kg).
Arms of a person I would estimate to be 5-10% of the total body mass.

This is the angular momentum issue I had. if the mass ratio between the outstretched "arm" and the main body is in the order of 1e-17, the slowing down should be around 1e-12 sec/day. Quite tolerable. We'd need to buiild a thousand billion such elevators before the day slows by 1 second.

I'm feeling safe again. Thanks.

Not much earth would be left because we made space elevators out of it

[d_eddie]

Not much earth would be left because we made space elevators out of it

Well, mass wise there would still be ~5.97199e+24 kg out of 5.972. That's kind of the point I guess  

[Cryptotourist]

Bearz rekt time again.

Sorry for the off-topic.

[xhomerx10]

A friend just bought this one..... cool isn’t it

 Very cool.

 

[Cryptotourist]

homer, my man, this bulldog ain't got laser eyes on his hat yet, yo.

[xhomerx10]

homer, my man, this bulldog ain't got laser eyes on his hat yet, yo.

[eXPHorizon]

Retsus 5000 Years of Martial Arts eyes

Introduction :

https://www.youtube.com/watch?v=r98dzGkpA1o

[vapourminer]

soooo

• is this number goes up day?

• or number goes down day?

• or number goes sideways day?

• or honey badger doesnt give a fuck day?

inquiring minds want to know

edit: well not my mind really; i just sleep though all that crap

[Wilhelm]

Space elevator: the noob Newtonian dabbler in me has a question.

Won't a sufficiently high/massive elevator slow down this mudball's rotation? As in, longer days? Conservation of angular momentum and all that. Please make me feel safe again. Thanks.

If it was that heavy, what do you propose to anchor it to?  A large tent peg?

No because the space elevator is rotating the earth at the same speed as the earth. Also the material came from earth so it's still conservation of energy and mass.

It's mass doesn't matter because it's hanging from space.
You don't need to tether it because it's hanging down from space so you just need some concrete block at the bottom that weighs more than the counter weight in space.

Until you learn gravity always win in the long run.

Yes but the gravity of the sun can be the one winning ;-)

[eXPHorizon]

Space elevator: the noob Newtonian dabbler in me has a question.

Won't a sufficiently high/massive elevator slow down this mudball's rotation? As in, longer days? Conservation of angular momentum and all that. Please make me feel safe again. Thanks.

If it was that heavy, what do you propose to anchor it to?  A large tent peg?

No because the space elevator is rotating the earth at the same speed as the earth. Also the material came from earth so it's still conservation of energy and mass.

It's mass doesn't matter because it's hanging from space.
You don't need to tether it because it's hanging down from space so you just need some concrete block at the bottom that weighs more than the counter weight in space.

Until you learn gravity always win in the long run.

Yes but the gravity of the sun can be the one winning ;-)

Interesting Convo, the plans for the Space elevator was already made by the newtonian in 2011 Fully functional and lightweight moving with the earths rotation

[brokedummy]

Time to sell the future of money for colorful slips of paper printed at will by a cabal of megalomaniacs.

[Torque]

Norwegian Oil Billionaire Joins the Bets on Bitcoin
https://www.bloomberg.com/news/articles/2021-03-08/billionaire-rokke-bets-bitcoin-will-be-on-right-side-of-history?srnd=premium-europe&sref=6uww027M

[vroom]

I heard you like rockets so I made this gif



this is a video capture from the first successful landing of the new spacex starship rocket. I don't know how they made it, it looks unreal, computer animated. Most likely a drone captured that.

[Richy_T]

[Multple stuff]

Just a quick note but when combining multiple posts, it is better to put the items in the new post rather than the already existing one (then delete the existing one) lest those who have already seen your original post miss it when looking for "new".