It's 2020. SF to LA for $25 on Elon Musk's Hyperloop - Are you buying it?

[DougSpindler]

The new hyper-loop is Spin-launch.
https://youtu.be/9ziGI0i9VbE

[PlainName]

Instead of posting thunderfoot rants, which have already been posted ad nauseam and aren't terribly hard to find anyway, how about actually expressing your misgivings for these things. Then we can discuss the pros and cons like two (or more!) people, well, discussing things. The you're going on, we might as well decamp to youtube and just throw some bon mots or whatever at the comments section.

[DougSpindler]

What are the pros and cons about discussing technology which violates the laws of physics?  They are just con artists in the case of Elizebeth Holmes, and Trevor Milton.  Elon on the other-hand who has a university degrees is either pulling of one of the biggest most expensive hoaxes of all time or is just delusional. 

What is there to discuss when someone says they have a technology which everyone knows violates the laws of physics.  Do you really want to have a discussion the pros and cons of weather a perpetual motion machine is possible?  We had better hope it is not possible…. If it were we would all burn up from all of that extra heat a perpetual motion machines would create.

[wraper]

What are the pros and cons about discussing technology which violates the laws of physics?  They are just con artists in the case of Elizebeth Holmes, and Trevor Milton.  Elon on the other-hand who has a university degrees is either pulling of one of the biggest most expensive hoaxes of all time or is just delusional. 

What is there to discuss when someone says they have a technology which everyone knows violates the laws of physics.  Do you really want to have a discussion the pros and cons of weather a perpetual motion machine is possible?  We had better hope it is not possible…. If it were we would all burn up from all of that extra heat a perpetual motion machines would create.

Except it does not violate any laws of physics. Otherwise existing proof of concept implementations would not exist. It certainly can be made. The question is if it makes sense to make it.

[PlainName]

What are the pros and cons about discussing technology which violates the laws of physics?

Well, the obvious one is you saying why you think it violates the laws of physics. Pointing to a video that says it does isn't a discussion (at least, not with you).

So, what do you, personally in your own mind, feel is wrong with either of these things?

[EEVblog]

There is already a thread on here for Spin Launch, please take discussion there
https://www.eevblog.com/forum/dodgy-technology/spinlaunch-can-it-succeed/

[sandalcandal]

Small update, The Boring Company just made a twitter post.

Hyperloop testing at full-scale begins later this year.

https://twitter.com/boringcompany/status/1518615207035039745

[cdev]

If one could spend $25 to travel between the two they would sell a lot of tickets..The options right now suck.

But the Central Valley rail project has bogged down too.

[cdev]

Hype-loop is right..

 

[DougSpindler]

Can't wait to take the California High Speed Rail between Bakersfield, otherwise known as the arm pit of the Central Valley and Modesto where America Graffiti was filed which is now know for Meth, Death and Auto theft.

As how been discussed many times the train crosses several earth quake faults.  We are due for one soon....  What's going to happen when we have a quake and the ground shifts 10 - 20 feet as it has in the past.  The train will be out of service for years.  No such issue with a air travel.

[PlainName]

The train will be out of service for years.  No such issue with a air travel.

Air travel is mega-polluting. Maybe the repair costs will be less than the environmental costs saved when the train was, and will be, running.

Not everything has a simple hand-in-pocket up-front price to allow easy factoring, you know

[DougSpindler]

Oh air travel is so much worse when it comes to pollution....  It lowers people's IQ.  Just as petrol used to power automobiles has been for nearly 100 years.  But so does soldering.   

[AVGresponding]

How does soldering lower IQ?   

[cdev]

In the 1990s the Bay Area was just seething with enterpreneurial types who WANTED YOUR MONEY and would pretty much SAY ANYTHING to get it.

I remember this era well. It wasn't THAT long ago, remember.

[DougSpindler]

How does soldering lower IQ?   

Sorry, thought it was obvious.  Solder used in electronic for nearly more than a century contained lead.  Working with the solder your being exposed to lead.   

[BrianHG]

How does soldering lower IQ?   

Unless you are eating it, inhaling a vapor form of it, or you don't wash your hands after use before eating, or rubbing your eyes, it probably wont affect you.

Improper disposal can release it into the environment in unpredictable ways which can lead to the above problems with contamination.  IE: Children biting on toys containing paint made with lead.

[DougSpindler]

How does soldering lower IQ?   

Unless you are eating it, inhaling a vapor form of it, or you don't wash your hands after use before eating, or rubbing your eyes, it probably wont affect you.

Improper disposal can release it into the environment in unpredictable ways which can lead to the above problems with contamination.  IE: Children biting on toys containing paint made with lead.

No disagreement with what you are saying in theory, and then there's what people really do.  It does have to be ingested and the most common way is not washing hands or in a multi-step process where when one is soldering wiping ones face or touching a coffee cup/glass of water.
 

[jonovid]

 its vaporware or an investment scam.
parts of the Hyperloop technology do work however for the most part it is so
infrastructure intensive in use of both land and materials as to make any benefits non existent when compared with aviation.
 
IMO environmental costs of air travel are exaggerated by some to the point of insanity.

[DougSpindler]

its vaporware or an investment scam.
parts of the Hyperloop technology do work however for the most part it is so
infrastructure intensive in use of both land and materials as to make any benefits non existent when compared with aviation.
 
IMO environmental costs of air travel are exaggerated by some to the point of insanity.

Aviation fuel still contains lead.  Did you see the video?  It's as bad if not worse than radioactive waste pollution.

[SiliconWizard]

its vaporware or an investment scam.
parts of the Hyperloop technology do work however for the most part it is so
infrastructure intensive in use of both land and materials as to make any benefits non existent when compared with aviation.
 
IMO environmental costs of air travel are exaggerated by some to the point of insanity.

Aviation fuel still contains lead.  Did you see the video?  It's as bad if not worse than radioactive waste pollution.

Uh. https://ijet.aero/ijet-blog/different-types-aviation-fuel-jet-fuel

AFAIK, only AVGAS contains lead (for the same reasons gas for cars contained lead, but obviously the aviation industry has been a lot more reluctant to switch to lead-free fuel due to reliability reasons.)

AFAIK, AVGAS is only used for piston engines, so basically the small aircrafts, which considering the total amount of fuel consumed, must be a pretty small fraction worldwide these days. Jet fuel doesn't contain lead as far as I can tell, and (although I don't have figures right now) is probably the number one fuel used for aviation in terms of volume.

[Nusa]

its vaporware or an investment scam.
parts of the Hyperloop technology do work however for the most part it is so
infrastructure intensive in use of both land and materials as to make any benefits non existent when compared with aviation.
 
IMO environmental costs of air travel are exaggerated by some to the point of insanity.

Aviation fuel still contains lead.  Did you see the video?  It's as bad if not worse than radioactive waste pollution.

You do realize that almost nobody actually watches the video links posted? If it's not worth an extra minute of your time to summarize it, it means even you think it isn't important enough to watch. You're just using it as a crutch for your what-about-that argument where you make a clearly ridiculous and untrue statement to hijack the thread into something that has nothing to do with the threads topic.

[DougSpindler]

its vaporware or an investment scam.
parts of the Hyperloop technology do work however for the most part it is so
infrastructure intensive in use of both land and materials as to make any benefits non existent when compared with aviation.
 
IMO environmental costs of air travel are exaggerated by some to the point of insanity.

Aviation fuel still contains lead.  Did you see the video?  It's as bad if not worse than radioactive waste pollution.

You do realize that almost nobody actually watches the video links posted? If it's not worth an extra minute of your time to summarize it, it means even you think it isn't important enough to watch. You're just using it as a crutch for your what-about-that argument where you make a clearly ridiculous and untrue statement to hijack the thread into something that has nothing to do with the threads topic.

Considering more people watch the video then read the posts I’m not surprised.  What’s discussed in the video is related to my original post about Elon’s Hyperloop.

[Ed.Kloonk]

Considering more people watch the video then read the posts I’m not surprised.  What’s discussed in the video is related to my original post about Elon’s Hyperloop.

In what way?

Help us help you, Doug.

[AVGresponding]

its vaporware or an investment scam.
parts of the Hyperloop technology do work however for the most part it is so
infrastructure intensive in use of both land and materials as to make any benefits non existent when compared with aviation.
 
IMO environmental costs of air travel are exaggerated by some to the point of insanity.

Aviation fuel still contains lead.  Did you see the video?  It's as bad if not worse than radioactive waste pollution.

Uh. https://ijet.aero/ijet-blog/different-types-aviation-fuel-jet-fuel

AFAIK, only AVGAS contains lead (for the same reasons gas for cars contained lead, but obviously the aviation industry has been a lot more reluctant to switch to lead-free fuel due to reliability reasons.)

AFAIK, AVGAS is only used for piston engines, so basically the small aircrafts, which considering the total amount of fuel consumed, must be a pretty small fraction worldwide these days. Jet fuel doesn't contain lead as far as I can tell, and (although I don't have figures right now) is probably the number one fuel used for aviation in terms of volume.

Exactly, while avgas contains lead, that is not exactly the most widely used aircraft fuel; it's only for piston engines, so historic planes and small private planes. Jets use kerosene or naptha based fuel, and though there are additives for various purposes, none of them contain lead.

As far as soldering is concerned, wash your hands afterwards! There is no lead in flux fumes, that's an "urban myth", soldering doesn't get hot enough to vapourise lead.