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 Return to top of page · Post #: 16 · Written at 6:28:45 PM on 3 August 2023.
Tallar Carl's avatar
 Location: Latham, ACT
 Member since 21 February 2015
 Member #: 1705
 Postcount: 2174

Brad when I was installing a Telecom repeater site in Cowra the greenies requested that we place the tower in the valley so it couldn't be seen! Yep that's the greenies for you 😀 .


 
 Return to top of page · Post #: 17 · Written at 9:47:03 PM on 3 August 2023.
Marcc's avatar
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 5389

I think those greenies now worked for Telstra here. Their tower is around at around 140m AMSL and I am at 150 to 160m AMSL (Farm) which is why I have not had a decent mobile signal since its inception. Phone connects (badly) to a tower 40Km away & spent the day "No Network Coverage". Long overdue to be rid of them.


 
 Return to top of page · Post #: 18 · Written at 10:19:50 PM on 4 August 2023.
BurntOutElectronics's Gravatar
 Location: Melbourne, VIC
 Member since 2 October 2019
 Member #: 2392
 Postcount: 271

Methane is definitely better off burnt than released into the atmosphere, and by a good margin too.
I think it would be interesting to explore the idea of replacing 'natural' gas with a combination of methane from by-product waste/manufacturing and hydrogen in the gas pipe network in all major city's. I am not fully aware of the effort or cons that would be needed for this, mainly probably would be dealing with the water vapour. But it would tick all the boxes in terms of sustainability as long as a effective way to inject green hydrogen into the network was found.
We have developed ways to convert sea water into hydrogen without corroding the submerged anode and cathode in a day.
Dunno, food for thought.

Hydrogen has to be better for the future of transport than electrofrying everything with normal EVs.
Toyota are in the process of testing the waters of hydrogen powered cars, even here in Australia.

here's a video from America on how things are looking on that front: https://youtu.be/rtZQLUtckS4.

As far as I can tell, the same car does exist here too, but there is only one refueling station in Victoria for it.
I hope this changes and a gravitation towards hydrogen does take shape.


 
 Return to top of page · Post #: 19 · Written at 6:31:22 PM on 7 August 2023.
Tallar Carl's avatar
 Location: Latham, ACT
 Member since 21 February 2015
 Member #: 1705
 Postcount: 2174

Burnt out electronics Toyota and BMW have been experimenting with Hydrogen together for about 20 years. I agree it's got to be a good idea.


 
 Return to top of page · Post #: 20 · Written at 12:41:21 AM on 8 August 2023.
Marcc's avatar
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 5389

And we can all claim we are driving a Hydrogen bomb: Hydrogen is a rather dangerous gas, I have used it for welding & cutting (underwater) (preferred with Silver) and Chromatography.

Interesting that the original Model T was designed to run on alcohol.


 
 Return to top of page · Post #: 21 · Written at 8:32:52 AM on 8 August 2023.
STC830's Gravatar
 Location: NSW
 Member since 10 June 2010
 Member #: 681
 Postcount: 1302

The thought of driving around with a hydrogen pressure vessel is not appealing. There was talk years ago of storing hydrogen in metal hydrides at much lower pressures for use in mobile applications. The hydrogen atom is so small that it can fit inside the crystal structure of metals without having to displace a metal atom as happens in metal-metal alloys. Hasn't popped up in the media for a long time but might be a solution.


 
 Return to top of page · Post #: 22 · Written at 9:14:04 AM on 8 August 2023.
Tallar Carl's avatar
 Location: Latham, ACT
 Member since 21 February 2015
 Member #: 1705
 Postcount: 2174

Is it wrong to compare the Hydrogen Bomb to the Atom Bomb . It seems many people do!…


 
 Return to top of page · Post #: 23 · Written at 2:46:17 PM on 8 August 2023.
Irext's avatar
 Location: Werribee South, VIC
 Member since 30 September 2016
 Member #: 1981
 Postcount: 485

Carrying a large container of Lithium Ion around is proving to be not very safe either.

Two uncontrollable fires on vehicle carrying ships recently have shown this.

I shudder to think what would happen in an underground car park if/when an EV goes up.


 
 Return to top of page · Post #: 24 · Written at 4:05:50 PM on 8 August 2023.
STC830's Gravatar
 Location: NSW
 Member since 10 June 2010
 Member #: 681
 Postcount: 1302

Fireies reckon they have a lot of trouble putting them out.
Trouble is in these batteries two reactive chemical agents are seperated by a very thin membrane. If the membrane goes a reaction starts and then a fire.

Have a lot of these batteries around the house in various items. The most often charged is the phone by the bed at night. Makes you wonder what chance you are taking.


 
 Return to top of page · Post #: 25 · Written at 7:26:23 PM on 8 August 2023.
Brad's avatar
 Administrator
 Location: Naremburn, NSW
 Member since 15 November 2005
 Member #: 1
 Postcount: 7395

Fire fighters refuse to hose fires from electric cars. They revert to protect property mode for two reasons:-

1. The voltage. Expect at least 15,000 volts from a electric car battery. You don't want your water bridging that out.
2. Lithium and cobalt make up the explosive cocktail inside electric car batteries. They are more dense than lithium iron batteries (which means they can store more energy) but the cobalt is what can make a battery unstable. Adding water makes the fire rage harder.


‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
A valve a day keeps the transistor away...

 
 Return to top of page · Post #: 26 · Written at 7:55:20 PM on 8 August 2023.
Marcc's avatar
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 5389

Yes a hydrogen bomb is around a thousand times more powerful than an atomic bomb but the igniter is an atomic bomb.

I did publish a quote from a US fore department that said it took 43minutes and 600us gallons per minute to tame a Tesla fire so that's a lot of polluted water.

A clapped out car is often referred to as an old bomb.

Apparently the Automotive Batteries involved have some sort of ceramic electrolyte? This cracks allowing dendrites to penetrate it and cause a short.


 
 Return to top of page · Post #: 27 · Written at 8:12:43 AM on 9 August 2023.
Tallar Carl's avatar
 Location: Latham, ACT
 Member since 21 February 2015
 Member #: 1705
 Postcount: 2174

Thank you Marcc for that explanation so they weren't entirely wrong comparing a Hydrogen bomb to a atomic bomb.


 
 Return to top of page · Post #: 28 · Written at 9:33:43 AM on 9 August 2023.
Marcc's avatar
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 5389

The basics will be on the WWW It is noted that with the promotion of "Oppenheimer" many of the developments in respect of fusion came from our own Adelaide born Sir Marcus Laurence Elwin Oliphant, AC, KBE, FRS, FAA, FTSE. and of course we would not recognise that here.

We just troll & pour scorn on intelligent people.


 
 Return to top of page · Post #: 29 · Written at 2:04:45 PM on 9 August 2023.
STC830's Gravatar
 Location: NSW
 Member since 10 June 2010
 Member #: 681
 Postcount: 1302

Until Sir Marcus Laurence Elwin Oliphant's people redid the sums, it was thought that the critical mass for a fission bomb was in the order of tons. They figured that it was in the order of kilograms if U235 was used, physically and economically possible to make in wartime. He worked very hard making US scientists believe this and travelled around beyond what he was strictly allowed to do talking to the right people. Eventually the Manhattan Project was started.


 
 Return to top of page · Post #: 30 · Written at 6:36:28 PM on 9 August 2023.
Ian Robertson's Gravatar
 Location: Belrose, NSW
 Member since 31 December 2015
 Member #: 1844
 Postcount: 2477

Has anyone seen the play "Copenhagen"?

Chilling how close we came......


 
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