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pa.

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Everything posted by pa.
 
 
  1. Get Lane and Ringo and the whole gang will be back together.
  2. pa.

    Frame protectors

    Fitted sets to mine and my daughters 2011 Evo's yesterday. Took all of a couple of minutes for each one. No need to alter anything about them.
  3. Sent an email regarding the fuels to a person who worked at NASA for many years. Well, actually, RP-1 -- which stands for "Rocked Propellant-1" or "Refined Petroleum-1", depending on who you ask. It is, essentially, kerosene, but very highly refined. Regular kerosene often got too hot and polymerized, and/or caused tank wall ruptures, which is a Bad Thing during launch. :-) The military likes/liked RP-1 since it's typically made alongside regular jet fuel, is relatively cheap, and could sit "ready" for long periods of time. NASA likes cryogenic fuels since they're more powerful, and the launch windows are pretty specific, so onboard storage isn't that big of an issue. I wouldn't think so. Not a bad theory, but generally, you burn both RP-1 and LH with LOX -- liquid oxygen -- so I'm not sure that the atmosphere matters that much. Pretty much every fuel choice has an associated oxidizer, including solids. NASA doesn't like solids too much because they can't be shut down after ignition, which is problematic when you have humans onboard. This is just a guess, but probably the bottom line was when each stage was designed, by whom, and for what. They were in a hurry to get someone to the moon to beat the Russkies, so "so what?" was probably the key: strap things together that would work to meet the objectives within the timeline, and go with it. NASA has a not-recently-updated page with generic propellant info -- http://www-pao.ksc.nasa.gov/kscpao/nasafact/count2.htm -- but it's not all that detailed, and doesn't discuss the specific issue you're asking about. Not sure if that helps; I definitely didn't work with fuels. When we did talk about fuel, it was usually hydrazine! And that, mainly, due to discussions of its toxicity, and that it could foul instruments if you hit them with a nozzle blast....
  4. Birthday Suit. Oh not that type of gear. Very nice cake. Did you clear the section?
  5. First stage is burnt in our atmosphere and the second stage is burnt in space. Which button do I push?
  6. The Saturn 5 was inside a rather large shed. Caution do not stand near maked flame.
  7. Something left over. At dusk in the the garden.
  8. Here is the business end of a Saturn 5 rocket. And the junior version. I took these a couple of years ago at KSC.
  9. An Englishman, a Scotsman, an Irishman, a Welshman, a Latvian, a Turk, a German, an Indian, several Americans (including a southerner [but certainly not a redneck!], a New Englander, and a Californian), an Argentinian, a Dane, an Australian, a Slovakian, an Egyptian, a Japanese, a Moroccan, a Frenchman, a New Zealander, a Spaniard, a Russian, a Guatemalan, a Colombian, a Pakistani, a Malaysian, a Croatian, a Uzbek, a Cypriot, a Pole, a Lithuanian, a Chinese, a Sri Lankan, a Lebanese, a Cayman Islander, a Ugandan, a Vietnamese, a Korean, a Uraguayan, a Czech, an Icelander, a Mexican, a Finn, a Honduran, a Panamanian, an Andorran, an Israeli, a Venezuelan, a Fijian, a Peruvian, an Estonian, a Brazilian, a Portuguese, a Liechtensteiner, a Mongolian, a Hungarian, a Canadian, a Moldovan, a Haitian, a Norfolk Islander, a Macedonian, a Bolivian, a Cook Islander, a Tajikistani, a Samoan, an Armenian, a Aruban, an Albanian, a Greenlander, a Micronesian, a Virgin Islander, a Georgian, a Bahamanian, a Belarusian, a Cuban, a Tongan, a Cambodian, a Qatari, an Azerbaijani, a Romanian, a Chilean, a Kyrgyzstani, a Jamaican, a Filipino, a Ukrainian, a Dutchman, a Taiwanese, an Ecuadorian, a Costa Rican, a Swede, a Bulgarian, a Serb, a Swiss, a Greek, a Belgian, a Singaporean, an Italian, a Norwegian and 47-53 Africans walk into a fine restaurant. "I'm sorry," said the snooty ma
  10. A wife sent her engineer husband out to the shops. She said "get a litre of milk, and if they have any eggs, get 6" So, he came back with 6 litres of milk. He did as he was told/programmed!
  11. pa.

    Ticking nosie

    To help find the source of the noise use a screwdriver as a stethoscope. Put the handle to your ear and move the blade around the engine listening for the noise. Warning. Do not attempt this whilst riding.
  12. With wedding fever the newly wed royals are doing it well.
  13. HAVE YOU EVER BEEN GUILTY OF LOOKING AT OTHERS YOUR OWN AGE AND THINKING, SURELY I CAN'T LOOK THAT OLD. WELL . . . YOU'LL LOVE THIS ONE. MY NAME IS ALICE, AND I WAS SITTING IN THE WAITING ROOM FOR MY FIRST APPOINTMENT WITH A NEW DENTIST. I NOTICED HIS DDS DIPLOMA ON THE WALL, WHICH BORE HIS FULL NAME. SUDDENLY, I REMEMBERED A TALL, HANDSOME, DARK-HAIRED BOY WITH THE SAME NAME HAD BEEN IN MY HIGH SCHOOL CLASS SOME 40-ODD YEARS AGO. COULD HE BE THE SAME GUY THAT I HAD A SECRET CRUSH ON, WAY BACK THEN? UPON SEEING HIM, HOWEVER, I QUICKLY DISCARDED ANY SUCH THOUGHT. THIS BALDING, GRAY-HAIRED MAN WITH THE DEEPLY LINED FACE WAS WAY TOO OLD TO HAVE BEEN MY CLASSMATE. AFTER HE EXAMINED MY TEETH, I ASKED HIM IF HE HAD ATTENDED MORGAN PARK HIGH SCHOOL . 'YES. YES, I DID. I'M A MUSTANG,' HE GLEAMED WITH PRIDE. WHEN DID YOU GRADUATE?' I ASKED. HE ANSWERED, 'IN 1974. WHY DO YOU ASK?' YOU WERE IN MY CLASS!', I EXCLAIMED. HE LOOKED AT ME CLOSELY. THEN, THAT UGLY, OLD, BALD, WRINKLED FACED, FAT-ASSED, GRAY-HAIRED, DECREPIT SON-OF-A-BITCH ASKED, 'WHAT DID YOU TEACH???
  14. The salesman said it would stop traffic.
  15. Turbo Blow Off Simulator For Retard Posers Read the above article and then watch the film.
  16. How much cocaine does it take to kill Two and a Half Men?
  17. We have a 74 year old rider here who has ridden for many years with his front brake and clutch on the left handle bar. We got a BMX brake lever and cable and mounted this over his clutch lever and ran the cable to the normal front brake lever. When you pull the BMX lever it pulls the normal front brake lever. This allows him to move the system from one bike to another in around 5 minutes. This system also enables other people to ride his bike too.
  18. Keep an eye out for him. Likes to play AC DC a bit.
 
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