... You may find this experimental (small) plane of interest. It is bassed on a swift. http://news.bbc.co.uk/1/hi/technology/6923028.stm Andrew Swallow...
... Actually that could be difficult. The problem is that the Reynolds number on Mars would be pretty low. The aerodynamic situation is less bird like and more...
I wonder if a high-altitude airship could be designed to fly the skies of Mars. Airship groomed for flight to edge of space - The New Space Race - MSNBC.com ...
Greetings, As an undergraduate Physics student (in the 1970s), I computed what a "Space Elevator" would look like if made of standard structural steel. To my...
... As I understand, one of these problems (a pesky fundamental one) is that an orbiting ring is not stable and will come crashing down hard and fast. ... I am...
... How difficult could it be? I have seen (and made) paper airplanes with a very impressive glide ratio (around 10, perhaps?). Glide ratio is equal to...
Dave, I could not agree more. The orbital ring idea with a Jacobs ladder can be built in stages. The first stage would have access to LEO. If and when the CNT...
- ... The islandone site is good starting point for a lot of concepts, but to do the Orbital Ring idea justice the original work should be at least reviewed....
... I have reviewed that at some point in the past. No time to do so again. Perhaps that 100 million number is not accurate, but given that you need a...
I should not have jumped into this discussion, because I don't have time to debate it. But my main point is: If we want to build an SE now this is an approach...
Earlier this year I had posted about the Space Fountain, a structure that is basically a vertical Launch Loop. It is a tower held up by magnetic forces. It is...
... I believe that's partially incorrect. It's much stiffer, but not stronger than many materials. Aluminium alloy can be 260MPa or more at 2.7g/cm^3 density...
Hi Guys, I've been updating my space elevator talk recently as I have to give it again on Wednesday 12th September to the Association of Falkirk Astronomers...
... You wait till they go away and then resume launch. However, you would typically install a space elevator at a place with few clouds, so hopefully it...
Hi Andy, As far as I know, visible light lasers are not required. Ultraviolet rays will penetrate clouds.(at least to some extent) Infrared will not. Also,...
... Fibre optics can be used for sending power beams, at least over short distances. Clouds tend to stop at a height of about 5,000 metres. So attaching a 6...
... As I recall Brad Edwards answer to this was that there will be multiple laser located in various locations. Some will be in the desert Southwest for...
Now that is a new twist on the Nigerian banking scam. Whomever this person is writes nothing like Andy Nimmo. Ed ... Be smarter than spam. See how smart...
Yea, thats pretty well done. Probably spoofing on the gmail address, although it _might_ have been actually cracked. What I don't get is why on earth they must...
... always ... These things come from Nigeria because the spammers live in Nigeria. The Nigerian police, government and ISP leave them alone. I have had a...
Interesting article on a tether experiment. Brings us back to the Russian plans for a series of slinghots to accelerate payloads out of earth orbit. ...
WHAT: THE 100 MILE HIGH SPACE TOWER WHERE: ON INTERSTATE 80 IN NEBRASKA WHEN: 10 YEARS COST: 1 TRILLION DOLLARS FUNDING: A 1 TRILLION DOLLAR STOCK IPO SALE...
1. Warren Buffett doesn't have a trillion dollars, and even if he did, he generally prefers profitable enterprises. 2. You would have to sell 1 billion dollars...
This is very similar to the Space Fountain tower I proposed (on this group) several months ago to be built near the Oklahoma Spaceport. My idea would have...
... I'm amazed by how many people get hung up on the travel time to orbit. As Monte Davis wrote - The initial elevator will be for cargo -and - humans make up...
The first generation space elevator needs to be thought about as a system to move stuff into space for 1 % of what it now costs. it is not about travel time it...
... transport ... Just to set the record straight, I did not write the above excerpt and mostly agree with Vern. ... Right. These people must have been quite...
Here is a link to an article claiming a breakthrough in bonding nanotubes to a plastic like material. http://www.physorg.com/news110727530.html Looks...
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