HB of CJ

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About HB of CJ

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    Meson

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  • Favorite Area of Science
    astrophysics

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  1. The larger gear does have less rotational speed or velocity but the engagement time is longer. Slower turning. This is one reason why smaller faster gears can usually be made smaller and cheaper than slow big gears. Less material. It is also why most all manual transmissions today have one or more overdrive gear sets. The whole guts turns faster but can be smaller. Smaller today usually meaning lighter and cheaper. Lighter smaller transmission cases. Generally speaking the overall required gear reduction, (torque multiplication) had to come from somewhere. Usually a combination of both the low gear in the transmission PLUS the differential reduction ration. The two were added together. A balance of total material of both. An old example would be an ancient Fuller RTO910 10 speed truck transmissions. Came about in about 1960 or so. The factory had three, (3) different gear sets. The RT direct. The RTO with had a 22% over drive and the rare factory RTOO910 with had both a 28% overdrive AND an additional 22% overdrive. The overdrive models could handle more torque over a life time. Why? The reason was that first or starting gear had less of an overall gear reduction. Less torque multiplication at the same shaft speed. This tended to reduce the lifetime twisting motion or wear on the various pieces including the case. But again the engineered overall reduction must be considered. Smaller faster pinion gears in a differential had less stress. Less time.
  2. Earth habitability

    Probably ideally since only the last 200,000 years ago which corresponds with current theories of Human development.. Even then the Earth may not have been forgiving. Ideally perhaps the environment developed or "allowed" mankind to flourish only in the last 10.000 years or so when the last large ice age ended. Future suitability of the Earth? Harder to figure. Perhaps as long as several million years. Perhaps as short as only a few thousand years. Too variable. Too dynamic. Nobody knows for sure. All it would take is one very large volcano to set mankind way way back. An asteroid strike may also do the same thing.
  3. Geosynchronous Satellites

    Yep, the geostationary satellites respond to the average center of mass of the planet. During seasonal shifts the planet just rotates North to South or moves up or down in relationship to the equator but as far as the satellite is concerned everything stays almost the same. They do carry lots of reaction mass to make subtle orientation corrections. The heaviest part of the satellite is closest to earth creating a slight tidal effect so the thing does not tumble and the same part of the satellite remains oriented towards our planet. Seems the Earth is not quite round. Also there are areas of the planet that have different mass than the rest thus the force of gravity is slightly different than average Over time this counts up and becomes a big concern. The geostationary satellite can only be so big. Expensive to put them there. Eventually the satellite will run low then run out of thruster gas. Also most, (all) are powered by PV panels. Keeping them aligned well enough to provide sufficient power is also a big problem. Over time stuff wears out. Our own sun also tries to knock the satellites around. Solar wind. Hard radiation takes its toll. Temperature swings from daylight to nighttime. What is the average lifespan of a modern geostationary satellite today as compared to the very early days? All of the above makes it amazing our stuff stays functional for so long. Much progress indeed.
  4. Evidence of the Great Filter

    None of the so called Earth Like exo plants could support Earth life. Probably not even Earth Like life. None of them as far as we know could support a Earth Colony., which was my lessor point. My major point is we have not yet found that close Earth Cousin. And we may never. But ... like already said before me better and thank you, that does not preclude the possibility of non like Human intelligence developing some place else. It is just so far with what we know, the odds of such remain very remote. Right now a possibility but a long shot. This may change. Hopefully.
  5. Evidence of the Great Filter

    How many exo planets have we now discovered? How many are closely like Earth? So far, not so good. Good planets may be very rare. Good meaning a planet where we human beings could walk around and breath the air and drink the water and not drop dead from any number of things. But ... yep, ... there are lots of stars. Lots of apparent planets but so far none of them are Earth Like. Would that imply that somewhere someplace sometime somebody else different from us might come about? Right now we just do not know. Perhaps such an answer may never be known?
  6. Evidence of the Great Filter

    Or it is likely that planetary conditions necessary for advanced life to evolve are so stringent and exact that planet Earth may be the only act in town right now. There may have been somebody, (some things?) 2 billion years ago on the other side of the Milky Way and there are beings existing today, (us) and there may be somebody else around 1 billion years from now. But for now we are it. We are alone.
  7. Is it ethical to view men and women as different?

    There are distinct differences between male and female. Evolution has provided us with two sub species. To deny such is silly and perhaps dangerous.
  8. Frequency of Severe Hurricanes

    Airbrush's presentation did not provide enough data for a statistical valid presentation. At least 10 times the data would be needed. Perhaps 100 times the amount which was my point. Such data may not exist. Feel free to continue this discussion at hand but do not drag this into personal attacks. What does a Trump rally have to do with this? Feces? WTF?
  9. Frequency of Severe Hurricanes

    Thank you for your non professional personal attacks. By default, any possible further input by you concerning the subject at hand MAY be forfeit? Also may not. What you could have done is just say you do not understand. Instead you resorted to feeble insults by killing this messenger. You can do better than that. Let's keep this on track please. What you can do is contribute meaningful input. Again, there is not enough statistical data to make an accurate determination of hurricane frequency. That is the subject at hand. Please feel free to stay focused. Thank you. So far a D-/D-. Respectfully.
  10. Frequency of Severe Hurricanes

    I will make it easier to Grok. We do not have enough statistical data to accurately determine hurricane frequency. Such required accurate data may not exist. Precise vocabulary regarding definition of terms is also necessary. Any human intervention in the modeling process would also render any possible results suspect. The resulting conclusions would not be accurate.. Hope this helps. "Enthusiasm about Science is good. Enthusiasm in Science is Not Good."
  11. Frequency of Severe Hurricanes

    I do not think we have enough statistical data either way to determine hurricane frequency. To let that work the data would have to go back at least 1000 years. 10,000 years would be better but then we could be banging on ice age recovery eras. Then we also have the naggy zinger defining the various definitions. Gets quickly fuzzy. Climate change is very dynamic. It is also easy to discount the people factor fudging the data.
  12. Pet Stories

    One of my very best friends was my adopted Yellow Lab dog. I named her Goldie. Never could train her not to go out into the rural/remote woods of SW OR USA,.(42N, 123W, kinda) Once she caught a small possum and brought it into the solar homestead cabin through both doggie doors and laundry room airlock. Proudly she dropped it at my feet in the kitchen. The possum was playing possum. It was not dead. It came back to uninjured life thank you. In the kitchen. Quite the circus with me, Golder, (the dog) and the very pissed off very much alive possum. Pretty nasty animals when angry. Anyhow, with the dog, me and a kitchen broom we managed to herd the aforementioned possum out through the first doggie door. Then I locked that door and walked around the cabin with Goldie eagerly following ready for some more fun and games. After putting her back in the cabin I released the pissed off possum. Much fun for all of us. Related Kinda. Before the dog we had problems with mice and pack rats. I captured a huge bull snake and released it under the cabin. Problem solved? Almost. During cold or snowy weather that snake had the bad habit of crawling up into bed with us. Just trying to stay warm I guess. No problem. But rather disconcerting at first for my lady friend. She quickly got over it and the snake became a good pet. Kept the mice and rats away also. Years ago. Memories.
  13. Value of an Asteroid

    Raider5678: I like that earth to the solar system required energy "subway map" and thank you. We will mine the asteroids. Give us another couple hundred to five hundred years. The tech does not yet exist but it eventually will. Related: History tells us lots of brave sailors died going down to the sea in ships. We learned to build better stronger faster sailing ships. Towards the end of the sailing ship era good captains and crews actually sought out nasty blowing weather. It let them sail faster and it got them home quicker. Better tech of the day. The same thing will happen mining the asteroids. Time desire lives and technology. Eventually lots of folks will live and work in space. Not today but someday. "One quarter Impulse Mr. Sulu!"
  14. Reconciling science and religion

    Subjectives Opinuions ... Exact propor English is not required nor desired. As long as the main communuication and themes is understoods, that is sufficiuffulment. Correction of written English as an answer to a valied statement indicates a lack of mannours, intelligenience and a generally nick picky personality. Also possibly excessive compulsive. It is OK for some to pick there noses while keybourding. What one does with the buggerers is not important. That is all. Meant to be humerous.
  15. Why atomic bomb?

    Things one can talk about. The Soviet Union back in the cold war had several different Organs of government with their own bomb programs. They did not trust each other and each could do what they wanted ... within reason. Reason went out the air lock. Not only did they not know how many bombs they made or where they all were "safely" stored, even today they will not admit as to knowing who has them. These are not the big mega ton H bombs. These are the "cheap" tiny workable, (most of the time) gravity bombs and even many 8 inch artillery shells. Miniature Uranium gun bombs. Stable except for the precision detonators and explosives? Thousands and thousands. Somewhere there may be unclassified photos of soldiers carrying a 310 pound 8" nuclear artillery shell. About 1-2 kilotons. Most of the old Commie stuff had a definite shelf life. Fortunately. But they can be rebuilt with specific knowledge. By now most the people who would know where they all are stored away in various places are dying off. Will the new generation be told? Dunno. With modern computers and machine tool machines many nations can build nukes. Even bad nations. An ongoing problem today. Sossss... what we have is a nasty situation where not only are nuclear nations NOT recycling the nukes but new non stable nations are building their own. Or they pay the money and get the tech and stuff from other nasty nations. Fortunately it takes weapons grade material to build a nuke. But over the years even the USA has lost track of nuclear material. Makes one wonder a bit. Respectfully.