Talk-Polywell.org

Very interesting idea. At 0.5 Kwh/kg (and 1.8 Kwh/lt !) they start to become a real interesting solution for applications like electric planes and robotics. For general application where weight is not a big concern (like cars and back up power solutions/load levelling) I believe that all what will m...

I love stellarators as a research tool. I have been following the Wendelstein development since 2004, I have read most that has been presented and/or published during the last 14 years of development, and I can tell you all that it has been an engineering nightmare in almost every single aspect of c...

How much does it erode the impacted surface? And I presume ambient pressure has to be very low, of the O2 is likely to quickly react with the released carbon. Quote from article: "All experiments were carried out in a custom-made low-energy ion scattering apparatus34. The CO2+ ion beam was ext...

Does the character of the surface have any effect on the efficiency of oxygen production? I'm thinking along the lines of a catalyst. And there must be an energy level sweet spot to maximize conversion. That's an interesting point about the catalyst idea. The sweet spot for maximizing conversion in...

How much energy does it take to do that compared to other methods of splitting CO2 into C and O2? It's just a prototype, so I do not expect to have a meaningful efficiency right now if compared to other methods. I guess we will need to wait until they lay out some of the ideas they listed in the Di...

This is off topic on fusion related news, but I stumbled upon it today and I found it ingenious and a proof that science can still surprise in areas one would not expect. Long story short, they was trying to understand the presence of O2 into the CO2 tail of a comets and they though it might come fr...

williatw wrote:The impact of EmDrive on Future Warfare


Roger Shawyer SPR Ltd

Roger Shawyer is becoming the Randell Mills of 21st century.....

Successful launch and first stage landing. I love this boring stuff!

https://www.nature.com/articles/s41567-018-0389-0.epdf?author_access_token=R2uYId8rlXaECcWcbWkOItRgN0jAjWel9jnR3ZoTv0MG_SQq2nvFNm7Qh08h388r5NPvtxkiUxPtWnWFcALwelg9ZBPif0vVq4GLgvy1EKJ6mN0jKfkoQm6Ylej4apkFKJ_6h87xfWy8dWGLGWmyhA%3D%3D A newly published paper in Nature Physics reporting breakthrough re...

choff wrote:Saw a report SpaceX is laying off 10% of the workforce.

As any seasoned farmer can confirm, regularly pruning a tree keeps it healthy and spurs fresh growth in the remaining branches.

As you said payload would be smaller. If I remember correctly the total mass ratio difference for a DV=7.5km/sec with a 300 ISP fuel for a SSTO to a TSTO would be roughly 20 (SSTO) to 5 (TSTO). That means you loose 4 times the amount of mass you can bring to a DV=7.5Km/sec. And because the "mas...

So, any consensus on the contents of the patent application document from those who are knowledgable enough to be able to speak about it in an informed manner? Your thoughts Tom Ligon? or ??? It's quite an interesting patent and opens a plethora of possible different road to a commercial product (b...

jnaujok wrote:I see a trend among Elon companies:
SpaceX: making space be boring.
The Boring company: making space by boring.

LMAO

From a quick read it seems a really interesting cat.

Sorry guys , no little green men or super secret squirrel satellite. It is oxygen ice from inside the nozzle on stage two when the turbo pump runs a pre-chill cycle before startup, hence the blueish hue to it. :mrgreen: It falls on top of stage one then falls off. Also stage one pre cools before f...