Space Exploration

[SpaceCoastVol]

Just think what the world would be like if man had never invested in the effort to understand electricity.

I made Cs in physics because of electricity. All I can tell you is if you spin an electron down a copper wire, magic happens. Other than that, the worst thing that can happen doing plumbing is you get wet. Them wires can kill you.

 

[FLVOL69]

I made Cs in physics because of electricity. All I can tell you is if you spin an electron down a copper wire, magic happens. Other than that, the worst thing that can happen doing plumbing is you get wet. Them wires can kill you.

There’s a reason the government backed Edison over Tesla

 

[1972 Grad]

I made Cs in physics because of electricity. All I can tell you is if you spin an electron down a copper wire, magic happens. Other than that, the worst thing that can happen doing plumbing is you get wet. Them wires can kill you.

If the world depended on people like me to invent electricity, we would still be in the dark, and eating them raw.

 

[Hunerwadel]

There’s a reason the government backed Edison over Tesla

China didn't get the message. There are actually some cases where DC works better.


China powers ahead with a new direct-current infrastructure

 

[FLVOL69]

China didn't get the message. There are actually some cases where DC works better.


China powers ahead with a new direct-current infrastructure

Neither did Joe Biden..

 

[VolStrom]

China didn't get the message. There are actually some cases where DC works better.


China powers ahead with a new direct-current infrastructure

I wasn't going to register to read the entire article, but I'm dubious to say the least. I worked around high voltage every day and we had DC and AC systems. Unless Tesla has somehow become an idiot, you just can't push as much power through a DC line as you can a similar sized AC line.

 

[FLVOL69]

I wasn't going to register to read the entire article, but I'm dubious to say the least. I worked around high voltage every day and we had DC and AC systems. Unless Tesla has somehow become an idiot, you just can't push as much power through a DC line as you can a similar sized AC line.

Tesla was into providing wireless electricity which could be made available for free, after his death all of his research was confiscated by the government.

 

[VolStrom]

Tesla was into providing wireless electricity which could be made available for free, after his death all of his research was confiscated by the government.

Tesla was probably the smartest man to ever live and yes, I'm saying he was smarter than Einstein. Too bad he died broke and un-appreciated.

 

[FLVOL69]

Tesla was probably the smartest man to ever live and yes, I'm saying he was smarter than Einstein. Too bad he died broke and un-appreciated.

Agreed

 

[Hunerwadel]

I wasn't going to register to read the entire article, but I'm dubious to say the least. I worked around high voltage every day and we had DC and AC systems. Unless Tesla has somehow become an idiot, you just can't push as much power through a DC line as you can a similar sized AC line.

I'm certainly no expert on electricity but in some places like China it appears to be more cost efficient to transmit the electricity long distances via high voltage DC than it is to ship the fuel (coal) across country to a power plant where the demand for electricity is highest. Ship the electricity, not the coal. I do recall reading a few articles in the last year or two where DC is on the rise in many areas of the world.

If it can be more efficient than AC why don't we use it in the US? The answer is we do. I believe there are twenty two or three HVDC facilities in the US which are used when energy needs to be transmitted over long distances. We do it in certain areas for the same reason the Chinese are doing it.

 

[Tennesseefan2019]

It's worth the money and I want to see a space station on Mars in my lifetime

 

[VolStrom]

I'm certainly no expert on electricity but in some places like China it appears to be more cost efficient to transmit the electricity long distances via high voltage DC than it is to ship the fuel (coal) across country to a power plant where the demand for electricity is highest. Ship the electricity, not the coal. I do recall reading a few articles in the last year or two where DC is on the rise in many areas of the world.

If it can be more efficient than AC why don't we use it in the US? The answer is we do. I believe there are twenty two or three HVDC facilities in the US which are used when energy needs to be transmitted over long distances. We do it in certain areas for the same reason the Chinese are doing it.

No F'n way. Prove it.

 

[lawgator1]

It's worth the money and I want to see a space station on Mars in my lifetime

We will have a space force, too. Pew, pew.

 

[Hunerwadel]

No F'n way. Prove it.

I was going from memory when I said 22 or 23 the number is actually 20. Second paragraph. Hey this is nothing new it's just not a usual topic of discussion..

Readying for New HVDC Line, U.S. Lags Behind Rest of World

FYI: Pacific DC Intertie - Wikipedia

 

[FLVOL69]

We will have a space force, too. Pew, pew.

Yes indeed

 

[LouderVol]

There’s a reason the government backed Edison over Tesla

Uh, cause he bought and paid them?

 

[SpaceCoastVol]

It's worth the money and I want to see a space station on Mars in my lifetime

Why? What makes it worthwhile?

 

[UT-Rex]

I almost didn't reply because well....surely you must be joking. You do know when we look through a telescope at a galaxy 1B light years away we're seeing it as it looked 1B years ago, not what it looks like now. You also might want to read a little on some of the advantages of infrared telescopes over optical (visible light).

There are many different kinds of telescopes designed to view the universe in different ways including UV, x-ray, gamma ray, microwave, radio and even gradational wave detectors are considered to be telescopes

I know that's what is claimed.

 

[CagleMtnVol]

It's worth the money and I want to see a space station on Mars in my lifetime

I don't know about Mars but NASA & partners are planning on putting another Space Station in orbit around the Moon.

Currently titled "Gateway" its planned to begin construction in the next 3 years.

 

[Tennesseefan2019]

Why? What makes it worthwhile?

Just the possibility of manned exploration of Mars would make it worthwhile

 

[marcusluvsvols]

Space X talks about Mars frequently, I will probably be dead, but the only way I see Musk not getting a craft at least TO mars is if he goes bankrupt before he can make it happen. He wants it badly, and while i am not a big fan of him personally, he has the makeup of guys who have done great things historically. Nasa picked Boeing and the other clowns, left spaceX out of the huge contract...and Musk still beat them both to space and the ISS, they just delivered 5500lbs of stuff there yesterday. To say that Mars is much farther away than the moon is like saying the Pacific is bigger than my bathtub, though...we need advancements in lifesupport, propulsion, medicine even, who knows what else...zero gravity destroys the body.

 

[LouderVol]

Just commenting on the last I am always curious about the why. I get the what, lack of gravity, not as much radiation protection, cramped living.

One thing I have wondered is blood flow. And if NASA could give astronauts Gsuits to wear all the time. As I understand it g suits work for pilots experiencing high gs to keep blood flowing. I figure some modifications could help blood flow in low gs too.

I hope NASA has looked at stuff like that, but I dont remember hearing anything about it.

 

[Grand Vol]

Just commenting on the last I am always curious about the why. I get the what, lack of gravity, not as much radiation protection, cramped living.

One thing I have wondered is blood flow. And if NASA could give astronauts Gsuits to wear all the time. As I understand it g suits work for pilots experiencing high gs to keep blood flowing. I figure some modifications could help blood flow in low gs too.

I hope NASA has looked at stuff like that, but I dont remember hearing anything about it.

Actually, they keep blood from pooling in the lower body during high G maneuvers.

 

[LouderVol]

Actually, they keep blood from pooling in the lower body during high G maneuvers.

Yeah I didnt remember the science, but that is still keeping the blood flowing. By exerting pressure?

Main point was i would think the change in gravity might impact some of the blood flow. Too much or too little, idk. And something like a g suit could help. If that is an issue. Which again I have no idea if it is. Thinking outloud.

 

[Grand Vol]

Yeah I didnt remember the science, but that is still keeping the blood flowing. By exerting pressure?

Main point was i would think the change in gravity might impact some of the blood flow. Too much or too little, idk. And something like a g suit could help. If that is an issue. Which again I have no idea if it is. Thinking outloud.

A G suit keeps the blood from pooling in the lower body by exerting pressure on the legs, forcing the blood to stay in your upper body. It's a temporary thing to keep pilots from blacking out. They really wouldn't work in zero G for the application you are thinking of. They don't "help" the blood flow, but rather keep it from moving away from the brain for short periods of time.

Regardless, the physical problems with astronauts comes from deterioration of the bone structure from not being used to support the body. Humans have evolved with gravity in mind and were not "designed" for long periods of weightlessness.