Search found 2731 matches

by Giorgio
Tue Oct 22, 2019 3:54 am
Forum: News
Topic: Aluminum-air battery
Replies: 7
Views: 4665

Re: Aluminum-air battery

There's an interesting note that the battery doesn't need pure aluminum to operate. So maybe the plan is to buy inexpensive scrap aluminum and include that in the recycling? A quickie Google search suggests an aluminum can is worth 1.7 cents at a recycling center. About 70 cans to the kilogram. Tha...
by Giorgio
Mon Oct 21, 2019 6:31 pm
Forum: News
Topic: Aluminum-air battery
Replies: 7
Views: 4665

Re: Aluminum-air battery

Their concern for energy density is not the real issue, as anyhow (as they stated in the techcrunch article) their process involves transforming AL to AL(OH)3 and H2, and this is the roadstop to any wishful thinking they might have. Even on a 100% efficient conversion rate, you still need about 7kg ...
by Giorgio
Mon Oct 21, 2019 9:23 am
Forum: News
Topic: Aluminum-air battery
Replies: 7
Views: 4665

Re: Aluminum-air battery

This brings back old memories :) About 20 years ago me and a friend who owned a workshop embarked in producing an hydrogen burning engine using Aluminium wire for soldering. It worked quite well, but we both knew it was purely an academic feat, nowhere economic feasible for any application. The basi...
by Giorgio
Thu Oct 17, 2019 3:35 pm
Forum: News
Topic: Dark matter theories
Replies: 29
Views: 17293

Re: Dark matter theories

On an unrelated subject if you can stand the non-sequitur; is there any valid scientific reason to think that if there was a stable isotope of Element 115 it would have any unusual properties? Like "anti-gravity"? None to my knowledge. Also by logic we can infer that if indeed there was a material ...
by Giorgio
Wed Oct 16, 2019 2:23 pm
Forum: News
Topic: Z-Pinch Renaissance
Replies: 105
Views: 81109

Re: Z-Pinch Renaissance

Third-generation fusion fuels 3He + 3He → 4He+ 2 11 p 12.86 MeV 0 https://en.wikipedia.org/wiki/Helium-3 What about this reaction mixture? I remember hearing about it but it isn't talked about much. Skipjack already gave you good indication. I want to add that is not talked much also because it has...
by Giorgio
Wed Oct 16, 2019 1:53 am
Forum: News
Topic: Z-Pinch Renaissance
Replies: 105
Views: 81109

Re: Z-Pinch Renaissance

Just noticed that GG made a mistake in his calculations. He assumed a neutron yield per second. I am pretty sure that they are talking about a neutron yield per shot. One of their shots lasts a few nanoseconds... Exactly. Even with revised math he still has a good point when he mention MAP requirem...
by Giorgio
Tue Oct 15, 2019 2:27 pm
Forum: News
Topic: Z-Pinch Renaissance
Replies: 105
Views: 81109

Re: Z-Pinch Renaissance

Indeed, but they don't seem to care about the differences there, they tend to generalize all the issues too much for my taste.

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by Giorgio
Tue Oct 15, 2019 9:08 am
Forum: News
Topic: Z-Pinch Renaissance
Replies: 105
Views: 81109

Re: Z-Pinch Renaissance

Looks like ZAP is hiring, some of the jobs mention their next generation (scientific break even) device: https://careers.aps.org/jobs/?keywords=employer:%22Zap%20Energy%20Inc%2E%22 I have seen your exchange of messages at NBF. I plaud your efforts to actually explain them what the ZAP Z-pinch is tr...
by Giorgio
Tue Oct 15, 2019 8:48 am
Forum: News
Topic: Z-Pinch Renaissance
Replies: 105
Views: 81109

Re: Z-Pinch Renaissance

there are a lot of ideas out there http://www.projectrho.com/public_html/rocket/basicdesign.php#radiators Yes, but most of those ideas are just marginal improvements in respect of the needs of a human rated ship. I believe that the field needs a radical change of approach to the issue to the point ...
by Giorgio
Sun Oct 13, 2019 5:42 am
Forum: News
Topic: That Salvatore Pais again... Fusion Reactor Patent
Replies: 11
Views: 7548

Re: That Salvatore Pais again... Fusion Reactor Patent

Salvatore - Saviour Pais - Country His actual name is Salvatore Cezar Pais. Salvatore (Italian for) Saviour Cezar (Romanian for) Caesar Pais (French for) Country So here you have, "Caesar saviour (of the) country". Quite a pompous name! That said, considering the total lack of any new scientific pr...
by Giorgio
Fri Oct 04, 2019 4:44 pm
Forum: News
Topic: Z-Pinch Renaissance
Replies: 105
Views: 81109

Re: Z-Pinch Renaissance

This seems relevant related news: Congrats to Professor Uri Shumlak for becoming an APS Fellow! https://www.aa.washington.edu/news/article/2019-10-02/aa-professor-uri-shumlak-elected-american-physical-society-fellow Congratulations indeed! Hopefully this will make more easy for him and his team to ...
by Giorgio
Fri Oct 04, 2019 4:43 pm
Forum: News
Topic: Z-Pinch Renaissance
Replies: 105
Views: 81109

Re: Z-Pinch Renaissance

Uri assumes D+He3 as the idea fuel for a SFS- Z- Pinch rocket engine. The Q and T/W are higher than with an engine using PB11 (which they also examined). You are totally right, indeed the pB11 has theoretical worst characteristics as a fuel, but is also the fuel that has been less investigated so f...
by Giorgio
Thu Oct 03, 2019 7:20 pm
Forum: News
Topic: Z-Pinch Renaissance
Replies: 105
Views: 81109

Re: Z-Pinch Renaissance

I believe to have read that the operation of this SFS Z-Pinch is essentially continuous because the shots come in such a quick succession. I am concerned mainly by the ability to dissipate heat load as the frequency of the pulses increases. If by any chance you get to talk to them again you might d...
by Giorgio
Wed Oct 02, 2019 3:34 pm
Forum: News
Topic: Z-Pinch Renaissance
Replies: 105
Views: 81109

Re: Z-Pinch Renaissance

I believe to have read that the operation of this SFS Z-Pinch is essentially continuous because the shots come in such a quick succession. I am concerned mainly by the ability to dissipate heat load as the frequency of the pulses increases. If by any chance you get to talk to them again you might d...