Recent content by bettysfetish
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Graduate How Would the Universe Evolve Without Gravitation?
Well, I've been gone several months. I see most of you are still here. Anyway, I was simply going to answer Loren with, "No, nothing would have evolved without gravity" and be done with it. However the last post reminded me of a question I have that no one has been able or willing to answer...- bettysfetish
- Post #13
- Forum: Cosmology
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Undergrad Calculating Size of Asteroid to Wipe Out Life on Earth
Oh well, I guess your right; it was a whimsical thought at best I suppose. You guys have pointed out a couple things that may be prohibitive, although I dispute a couple of points as well, but a chain is only as strong as it's weakest link, and this idea, obviously has a couple very weak links...- bettysfetish
- Post #31
- Forum: Astronomy and Astrophysics
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Undergrad Calculating Size of Asteroid to Wipe Out Life on Earth
Well, good to hear from someone addressing my questions. Grabbing an asteriod at it's slowest speed makes sense and would be the most logical with time permitting. I see you put some thought into this, thanks. So, we have a rock about 2 miles in dia moving at about 13 or 14 miles a second...- bettysfetish
- Post #27
- Forum: Astronomy and Astrophysics
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Undergrad Calculating Size of Asteroid to Wipe Out Life on Earth
RayJohn01, Hi. there's no fetish, it's just the name of a band I played bass in till the drugs tore up a couple of the band menbers and ruined everything - - - :frown: oh well. Cling to life - - - hummm, - - I guess most of us do. Me ? I've done all the damage to my body that it can possibly...- bettysfetish
- Post #25
- Forum: Astronomy and Astrophysics
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Undergrad Calculating Size of Asteroid to Wipe Out Life on Earth
:zzz: O.K., it's 1:30 in the morning; everybody wake up. To start, "Our" volocity ranges between 24.1 and 31.1km/s. An asteriods volocity can vary greatly, as I expected. That in turn leads one to think there should be many within an acceptable range. There are 30 in excess of 200km in dia...- bettysfetish
- Post #23
- Forum: Astronomy and Astrophysics
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Undergrad Calculating Size of Asteroid to Wipe Out Life on Earth
Well, - - - that was certainly insightful, but perhaps we could start with an object slightly less than "Four million nine hundred ninty seven thousand miles in diameter"?? :wink: Did I read that right ?? My god, that's the size of a planetary orbit; albait a small one. I think one about five...- bettysfetish
- Post #22
- Forum: Astronomy and Astrophysics
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High School Little Help - Every action equal and opposite reaction?
Without reading the other 8 posts, my suggestion would be to go to the store and buy or "flip thru" some guns & ammo mags; the ones that have handguns, or more to your interests perhaps, shotguns. These should answer these question, in particular, without reading too far. There are web-sites...- bettysfetish
- Post #10
- Forum: Mechanics
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Undergrad Calculating Size of Asteroid to Wipe Out Life on Earth
Well, - - - :frown: There are certainly more variables to be considered than I could possibly keep straight, but let's start at, what seems to "me" at least, with the most basic piece of information. I know it's all relative, but "is there" an average volocity range we could assign to...- bettysfetish
- Post #20
- Forum: Astronomy and Astrophysics
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Undergrad Calculating Size of Asteroid to Wipe Out Life on Earth
O. K. - - - Let us start with this; "What might the average speed of an asteriod be??" You should be able to do some calculations from there, you think? L8R.- bettysfetish
- Post #18
- Forum: Astronomy and Astrophysics
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Undergrad Calculating Size of Asteroid to Wipe Out Life on Earth
Perhaps, but for the most part, and there are always exceptons, we are able to detect asteriods on a collision course with Earth sometimes years in advance. That considered, the nudge could be quite suttle, short term, and very effective. The size of the engines sent to retrieve the target would...- bettysfetish
- Post #16
- Forum: Astronomy and Astrophysics
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Undergrad Calculating Size of Asteroid to Wipe Out Life on Earth
:smile: I'd like to digress a bit on this topic. You know it wouldn't be very difficult to launch small "Engins" that could meet up with an asteriod, of any size you wish, then grappel onto it and thru the magic of vector steering bring it into a stable orbit for mining. Some of those things...- bettysfetish
- Post #14
- Forum: Astronomy and Astrophysics
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Undergrad What is Nothing vs Absolutely Nothing?
:smile: Hello all. Antonio is right about the "Casimir Effect"; that was 1948, and the dudes first name was Hendrick. The experiment indicates some very compellingly possibilitys. "Acually, it's spacetime, not space alone, that is being stretched by mass." -- O.K., I'll grant you that, but it...- bettysfetish
- Post #444
- Forum: Other Physics Topics
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Undergrad What is Nothing vs Absolutely Nothing?
:approve: Well, the last few threads "were" quite thought provolking. And thanks to Antonio Lao. I'll digest this and return. L8R- bettysfetish
- Post #442
- Forum: Other Physics Topics
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Undergrad What is Nothing vs Absolutely Nothing?
:rolleyes: O.K. - - I'll agree that nothing is nothing. To have something, you need mass. Do we agree? But do we agree the Big Bang provided the essential requirments to create the mass we see today in our universe as it is today? All things considered, this mass originated at a singular point...- bettysfetish
- Post #435
- Forum: Other Physics Topics
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Graduate Can Mass Be Transformed into Energy Without Antimatter?
"Are there any examples of converting mass into energy or vice versa besides bringing together a particle and its anti particle? Or is this the only one allowed by conservation laws? So I do not mean the 'transformation' of energy and mass by changing your perspective, but the actual physical...- bettysfetish
- Post #20
- Forum: Beyond the Standard Models