Most of this is off-topic and not helpful.
rpspeck - 5/4/2007 7:47 PM “As to computers, it occurred in phases, not all at once. How you financed silicon valley start-ups at the time was off of the easy to prove productivity improvements, and may of the ventures were seeded on less than $50k. Wozniak and Jobs built Apple 1 out of junk from a junk dealer FYI. I don't think this is a good comparison.”
The junk dealers name was Marty Spergel. He lives in Los Gatos. He later ran operations for Woz's "Cloud 9", which sold poor quality universal TV controllers. The cherrywood boxed unit 1 he couldn't afford a audio cassette storage, so in demoing the unit, he'd have to type in the binary hex codes for the integer basic interpreter. I could go on for hours like this. I was present for it, along with many other "big name" deals. So what - this is a forum about Commercial Space, not computers.
The MOS Technology 6502 processor Steve Wozniak used did not come from a junk dealer, since the part had just been announced. Wozniak and I (and thousands of others) ordered our first units the same week – the week the part was announced and offered for $25. MOS Technology spent far more than $50,000 putting this near state of the art IC into production.
MOS Technology FAILED as an investment and isn't around. Intel still is. They had little to do with Apples success, which had more to do with VisiCalc improving productivity than which microprocessor was chosen.
It was a severe “White Space” venture for them to offer this microprocessor for that price. But, by breaking away from the 10x to 20x higher price then asked by Motorola and Intel for samples of comparable parts, they broke open a previously invisible market.
Actually, this wasn't related to technology as market pricing - all of the 8-bit processors cost about the same, and many different ones were used. The Signetics one was similar to the 6502 in price. The issue was one of discount to buy-in an installed base, where Intel had an early advantage and wouldn't discount, and Moto was a big firm that didn't need to discount. Woz could have used another. Not "white space"
Wozniak did some extremely clever things, turning the weaknesses of these parts, and of the available MOS memory ICs, into strengths. The result was an “affordable” (1/2 the price of a Volkswagen) computer with live, color graphic display (on a TV).
Woz made color graphics affordable with a trick, making it more attractive than its rival on price. Not "white space".
If anything, the software like VisiCalc made the success, with productivity improvements - some were "white space". But the computer markets. both horizontal and vertical, engaged broad consumer and enterprise markets. Aerospace isn't a broad market, so again these are rotten examples.
It is easy to dismiss both “low cost” and “Ultralight” space ideas, but millions of people actually want to go into space.
Sorry. Not a space cadet. Work in the real world with very real interests and enjoy it. Find it easier to answer market need with real products and real public/private funds. No one would be a more serious advocate for new space technology. But it comes from the hard work both in business and engineering in confronting requirements and making things work across the board. Not from fantasy.
You're not impressing me. Some of us have rather wide experience, across many industries. You'd do better here to explain your microspace investment thesis in terms of the space industry, assuming you have the ability to do so. Those in this list would welcome "real" stuff - but they are good at challenging the unreal. For the space industry is literally the most difficult one in the world.
Jim - 5/4/2007 5:13 PMQuoterpspeck - 5/4/2007 5:36 PMAdditional note: I believe the U2 pilots spend a lot more than two hours suited up.1. U-2 pilots are a select group of people performing a national security mission. They weren't John Q. Public, who would have an issue with spending a long time in a spacesuit.
rpspeck - 5/4/2007 5:36 PMAdditional note: I believe the U2 pilots spend a lot more than two hours suited up.
privateer - 6/4/2007 7:30 AMWhat are the disadvantages?
Jim - 6/4/2007 4:13 PMQuoterpspeck - 5/4/2007 5:36 PM“1. major error in this is passengers don't want to be in a spacesuit for the whole flight.”Additional note: I believe the U2 pilots spend a lot more than two hours suited up.2. A more serious note: Given the proven loss of life (Russian) from spacecraft depressurization and experience with fast and slow depressurization in less demanding aircraft situations, why has the manned spaceflight industry decided to reverse aviation standards and condemn participants to death following any hull failure, including serious leakage? The large cross section of the pressure hull becomes an “Acceptable”, single point Fatal failure? To buy into this scenario and then talk about “Risk” in a spacesuit makes very little sense. To avoid the fatal single point failure, all astronauts need to stay in their pressure suits until they at least transfer to a more robust (probably double walled) low stress space station. 3. For two hour rendezvous, I assumed a more precision control system than used in Mercury/Atlas. Probably a “Hot Dog” like the 486 used on ISS. Plus I assumed use of GPS so you would know where you were. 4. Re Ejection: You can eject from a rocket after engine shutdown (near apogee if still deep in the atmosphere) with a bungee cord plus your standard deployment mechanism (already in freefall). It is hard to think in these terms since explosive “Flight Termination” has been more common than Thrust Termination. Richard P. Speck, Micro-Space, Inc. 1. U-2 pilots are a select group of people performing a national security mission. They weren't John Q. Public, who would have an issue with spending a long time in a spacesuit.2. You have no idea what you are talking about. Both Russian and American spacecraft use pressure suits for launch. Once on orbit, the pressure shells of both spacecraft are just as good as the space stations. If there is a leak, the life support system pumps in enough air to maintain pressure long enough to allow the crew to put on their suits. Also, the space stations don't use double hulls.3. It has nothing to with a computer. It is sensors and thrusters and a capable LV. GPS is not one of the sensors (radar, laser, LLL cameras, etc). And as I stated before there isn't a 2 hour rendevous.4. No you can't bail out, especially near apogee because you will burn up also
rpspeck - 5/4/2007 5:36 PM“1. major error in this is passengers don't want to be in a spacesuit for the whole flight.”Additional note: I believe the U2 pilots spend a lot more than two hours suited up.2. A more serious note: Given the proven loss of life (Russian) from spacecraft depressurization and experience with fast and slow depressurization in less demanding aircraft situations, why has the manned spaceflight industry decided to reverse aviation standards and condemn participants to death following any hull failure, including serious leakage? The large cross section of the pressure hull becomes an “Acceptable”, single point Fatal failure? To buy into this scenario and then talk about “Risk” in a spacesuit makes very little sense. To avoid the fatal single point failure, all astronauts need to stay in their pressure suits until they at least transfer to a more robust (probably double walled) low stress space station. 3. For two hour rendezvous, I assumed a more precision control system than used in Mercury/Atlas. Probably a “Hot Dog” like the 486 used on ISS. Plus I assumed use of GPS so you would know where you were. 4. Re Ejection: You can eject from a rocket after engine shutdown (near apogee if still deep in the atmosphere) with a bungee cord plus your standard deployment mechanism (already in freefall). It is hard to think in these terms since explosive “Flight Termination” has been more common than Thrust Termination. Richard P. Speck, Micro-Space, Inc.
Avron - 6/4/2007 9:12 AMQuoteprivateer - 6/4/2007 7:30 AMWhat are the disadvantages?Single point of failure.. I just don't see the FAA or who-ever granting the licence for launch. If something goes wrong, criminal charges may be an option here for the authorities.
privateer - 7/4/2007 2:38 PMQuoteAvron - 6/4/2007 9:12 AMQuoteprivateer - 6/4/2007 7:30 AMWhat are the disadvantages?Single point of failure.. I just don't see the FAA or who-ever granting the licence for launch. If something goes wrong, criminal charges may be an option here for the authorities.1) Just wonderful. Now FAA will tell me how exactly I can risk my life, and how I cannot. Is this legal?2) How come today's astronauts are allowed to perform milti-hour EVAs? In the very same spacesuits! Isn't it very similar? This is even worse because they don't have a capsule around them, two-millimeter sized grain of space junk and they are dead. Where is FAA now?
privateer - 6/4/2007 4:38 PMQuoteAvron - 6/4/2007 9:12 AMQuoteprivateer - 6/4/2007 7:30 AMWhat are the disadvantages?Single point of failure.. I just don't see the FAA or who-ever granting the licence for launch. If something goes wrong, criminal charges may be an option here for the authorities.1) Just wonderful. Now FAA will tell me how exactly I can risk my life, and how I cannot. Is this legal?2) How come today's astronauts are allowed to perform milti-hour EVAs? In the very same spacesuits! Isn't it very similar? This is even worse because they don't have a capsule around them, two-millimeter sized grain of space junk and they are dead. Where is FAA now?
rpspeck - 6/4/2007 5:54 PMActually the FAA has no section of the "Experimental Launch Permit" addressing either flight or ground crew safety: “at your own risk”. I like the fact that this is to an extent still a free country. Once NASA was removed from space flight oversight (following Challenger?) many obstacles were removed.
nobodyofconsequence - 6/4/2007 11:30 PMYou'd do better here to explain your Micro-Space investment thesis in terms of the space industry, assuming you have the ability to do so.
nobodyofconsequence - 6/4/2007 11:30 PMMOS Technology FAILED as an investment and isn't around. Intel still is.
rpspeck - 8/4/2007 9:13 PMI claim that we were, in October 2006, the primary competitor to Armadillo. We had then, and now, 17 flights of our bipropellant, liquid fueled rocket (plus numerous static tests) and 2 very successful flights of near hover, gimbaled motor, gyro referenced guided rockets.