planett

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planett last won the day on February 6 2013

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About planett

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  1. Defcon was correct, the orbiter accelerates and climbs from SRB separation at 2min and 28 miles to 6 min and 80 miles altitude. The assembly will then descend to 72 miles while reaching peak acceleration of 3g. By 8 min the main engines are shut down and the tank is jettisoned allowing orbital engines to do their thing. The 8 mile descent stayed in my memory, the rest didn't. Info from Space Shuttle, Christopher Chant, 1984.
  2. Mitch's explanation was what I was getting at. Solid Rocket Boosters separate, and the main engines are insufficient for just a small period? I'll try to track down the old reference textbook. Ugh!
  3. Mitch's explanation was what I was getting at. Solid Rocket Boosters separate, and the main engines are insufficient for just a small period? I'll try to track down the old reference textbook. Ugh!
  4. Wait, there's more! I read a few years ago about main engine thrust at booster separation. Full thrust was not sufficient to orbit the shuttle with external tank attached after the boosters separated. The shuttle actually descended into a sub orbital trajectory with the main engines at full thrust until it ejected enough of its own mass (external tank contents) to achieve the correct acceleration to continue to orbit. This took a minute or two. There's a differential equation in there somewhere.....I just know it!
  5. Just let in atheists. Should solve lots of problems.
  6. Defcon, It seems I'm out of luck with double the time and experience requirements you highlight. I'm only as good as my type rating (and I have many). I'm not terribly unhappy with my position, but looking at long term job stability, I seem destined for the bottom of seniority anywhere I go, if I got laid off. It seems a 23 year career is worth about 35 grand or so. Is experience worth anything? I think type ratings are all that's important now. Interviews have shaped my outlook.
  7. Maybe she's the next Noam Chomsky. (the linguist!) That was a superb explanation.
  8. Check out Jan Hudec. His prize money from the source above is some $31,000. I don't claim to know what his total compensation is, but no wonder he opened an eyeglass shop and is a drummer. This guy won our first men's alpine skiing medal in 20 years, after 7 knee surgeries and later a slipped disc on the day he was named as a member of Team Canada. He missed a practice run in Sochi to recover for a qualifying run the next day. At some point he was paying for coaching due to being cut from the national team. Watching his runs brought back all the excitement from my youth when bombing Mont Saint Anne and Whistler would get my lift ticket punched. Maybe I should have been a skier........no, too scary.
  9. I was a young viewer of Cosmos during it's original broadcast in 1980/81 and I was amazed by the science that seemed so lacking in school at the time. Later, I became aware of a bigger message of the series, which was the politics of knowledge, and the persuit of facts, often in conflict with cherished beliefs. Carl Sagan believed what the networks did not, that the American viewership was somewhat intelligent and curious about science. He won the bet. This gamble is about to be repeated with Niel deGrasse Tyson as the frontman, I can't think of a better host. With luck, there will be a new generation of scientists who feel "small" in just the right way. Here on Earth, my time in the Arctic has always made me feel "small".
  10. I guess recreational use of marijuana will no longer have the stigma it has endured.
  11. Bleeding elbows and knees were a staple of the game, then they became a liability. But newer substitution rules got more people involved and the game actually improved with fresh legs and the ability to sub 7 instead of 2.
  12. I understand the desire to reduce concussions via "head gear". It has been in sports literature recently regarding soccer. IRB head gear was meant to keep blood injuries to a minimum and keep the ears attached to the head. Since 1991 blood injuries must be stopped within 5 minutes before a player can return to the field in Rugby. Small cuts to the head bleed a lot. This was a result of the HIV epidemic contingency in the 90's. Rugby style headgear will NOT prevent concussions.
  13. I wish I could provide a link, The Economist had an article on Lisbon and decriminalization a few years ago. Drug tourism and increased use by locals and crime were fears that proved unfounded since the laws changed. I suspect the biggest obstacle for Canadians is that we've never done it that way before.
  14. Vanishing Point I had a 1975 MGB roadster, (which made me appreciate the GT). The original Zenith-Stromberg single carburetor was a disaster. With help from my dad, and a garage, I was able to outfit an 8.8 compression rebuild with a dual SU carb setup giving 1960's performance to a 1970's MG. Anti-roll bars made the car perfect for secondary Nova Scotia roads. The sale of that car paid for some of my Commercial License almost 20 years ago. One day I'll buy another one!
  15. I hope the Cylons get us first. This is model number 6.