Category Archives: Uncategorized

Airbreathing hypersonic travel is less energy efficient over long distances than rocket travel

There’s a certain misunderstanding common in aerospace that rockets are horribly inefficient and that long term we need air breathing ramjets or scramjets to efficiently launch things, with the idea that we can thus avoid accelerating oxygen to flight speed, … Continue reading

Posted in Uncategorized | 37 Comments

Plan D for space settlement

Plan D There are three companies I take seriously for making true spacefaring (ie including Mars because I’m a Mars Firster) truly accessible: SpaceX, Blue Origin, And Masten Space Systems. I would have taken XCOR seriously, but unfortunately they went … Continue reading

Posted in Uncategorized | 11 Comments

Your Sweat Given Rights (Off Topic)

I would like to introduce a possible new term to help counter the seemingly increased use of “God Given Rights” by lawyers, politicians, and various activists that wish latch onto or hand out other peoples’ resources and freedoms. This particular … Continue reading

Posted in Uncategorized | 28 Comments

Megacharger costs… (Tesla Semi Part Two)

Elon Musk announced the Tesla Semi months ago, now. Besides the low cost, one of the things people are most incredulous about are the Megacharger costs. Tesla announced just 7 cents per kWh, flat price, to charge at a Megacharger. … Continue reading

Posted in Uncategorized | 7 Comments

Repost of an Idea

Some years ago I did a post on using Lunar fuel to raise a sub-orbital vehicle to Earth orbit. One of the comments by sjv linked to a similar concept that had been done several years earlier but much more … Continue reading

Posted in Uncategorized | 8 Comments

Flyback Shrouds

Seeing the picture of the SpaceX shroud floating in the water, it struck me how much it resembled the bottom half of certain lifting bodies. Then it struck me that this thought had been around before, whether it had been … Continue reading

Posted in Uncategorized | 5 Comments

Black Aluminum New Car Tech

Over on Transterrestrial, there was a discussion about self driving cars eliminating traffic jams. The site doesn’t allow comments from my computer calling it through a proxy, so I’ll just throw out a few thoughts here. The discussion focused mostly … Continue reading

Posted in Uncategorized | 13 Comments

The Rivers of Progress

Most if not all people disagreed with my thoughts on bringing in various technologies in the last few posts about the architecture Doug Plata is laying out at spacedevelopment.org. On many blogs, and especially with many of the commenters  on … Continue reading

Posted in Uncategorized | 8 Comments

Early Testing and Demonstrations on the Depots and Rotovators

Doug Plata has done some detailed comments on the suggestions, ideas, and differences from his ideas that my posts laid out in minimal form. His comments deserve better than I can do in a little comment window. Probably better than … Continue reading

Posted in Uncategorized | 13 Comments

Lunar Hoverslam

I suggested in the middle of a couple of recent posts that the hoverslam techniques pioneered by SpaceX with the Falcon9 be used for Lunar landings. It was a kind of throwaway thought along with several other suggestions. As I … Continue reading

Posted in Uncategorized | 25 Comments