Assuming the information about its orbital path is correct, it seems that any point along a planet's orbit and 60º or more ahead of or behind the planet may be a "stable" "point" for a Lagrangian orbit. TK7's orbit apparently includes spiraling around the path the earth will follow. The animations I've seen so far aren't clear, but it looks like that spiral may have a period of about 8 months and cover a distance much greater than the moon's orbit.
Imagine a hula hoop as Earth's orbit, and a slinky around the hula hoop's tube. Stretch the slinky from a point 60º ahead of Earth to 180º ahead, and you'll have a crude representation of its path.”
Commented
Jul 25, 2011 at 14:42:14 in
Healthy Living
“Of course not. No form of natural selection has anything to do with political correctness. That's why it's called *natural* selection and not political selection or eugenics.
Your objection to the comment, OTOH, is all about your personal opinions, apparently with no consideration of the legitimacy of the basic fact of the statement. You don't approve of the underlying motivation of the OP and perhaps don't understand that as a simple statement it's correct, so your solution is to attempt to censor the post.”
“Yeah, that guy was an idiot, but his long record of spending time with the bears before being killed shows that the bears don't pose nearly as much risk as many posters apparently think they do, even when people make a point of getting close to them. People collectively spend an enormous amount of time in bear country and there are very few attacks. Suggesting that simply being in bear country is irresponsible is analogous to claiming it's irresponsible to cross the street because people are occasionally hit by cars.”
“Or to living in cities because humans murder each other. No, humans belong anywhere they want to go, just as much as any other animal. And, if that animal attacks me for no reason (I didn't instigate it) then that animal will die. I don't care about it's motives.”
“It had nothing to do with correctness of the post, or political correctness. I don't believe in political correctness.
When you come on a site and make a comment that children with ADHD gets hit by cars is just part of natural selection, you are doing it simply to be crass, uncaring and for shock value itself. Are you suggesting that we just let these children be hit by cars as part of natural selection? If you are not, then there is no reason for such a post.
We who have children with ADHD live in perpetual fear that something like this could happen to our children, because of their impulsivities. How do you think we feel hearing it is just Darwin at work?”
Commented
Jul 25, 2011 at 12:53:12 in
Healthy Living
“That's not necessarily true, because stupidity comes in many flavors and not all of them are potentially lethal.
OTOH, in strictly functional terms, any natural condition that exposes you to an increased chance of an accidental death is definitely going to select some individuals for removal from the gene pool.”
Commented
Jul 25, 2011 at 12:46:03 in
Healthy Living
“Did you read more than the headline? It's news if you're doing more than thinking superficially or don't have a thorough understanding of how ADHD works. It's a no brainer that people who don't pay attention or get easily distracted will have trouble with any skill that requires paying attention, but that's a lousy description of ADHD. Beyond that, the kids in the study did pay attention and weren't distracted from the task. That people with ADHD can pay attention and still have trouble accurately assessing risk and the right time to cross is news to the majority of people. That included the researchers, who weren't simply confirming findings from previous studies.”
“I haven't just thought about ADHD superficially or don't understand it. I'm in my 28th year as a parent of a person who has always been diagnosed in the very severe end of the spectrum of ADHD. Along the way, I attended every conference, heard every expert, learned about every medication, learned about every behavioral techinique, found and personally paid for schools that cost the equivalant of yearly college tuition, to make sure understanding was present and needs were met, was in the trenches making it work day in day out. For many years it was a round the clock effort.
I once heard one of the top neurologists in the country talk about visiting a pediatric head injury unit and noting that a majority of the patients had ADHD to some degree prior to their injury. But I didn't need her to tell me. I live with the possibilities of what poor impulse control could do every single day. At the moment, it's a complete tear of the ACL that will require surgery.”
“All you ever do is urinate? How fortunate! You never have an occasion to wipe? Guy, I'm assuming....
In any case, when using a public restroom, even if you only ever urinate and don't dirty your own hands, you are touching surfaces that have been touched by people with dirty hands. You never know where the person before you--the one who might have had a great need to wipe--placed an unwashed hand...like the lever that flushes the toilet or the door handle.”
“Forget privacy from other people who are in the bathroom. A substantial percentage of restaurants and bars manage to put doors and urinals in positions that offer a view to anyone near the door when somebody else enters or leaves the bathroom. How do businesses spend hundreds of thousands on designing and building and screw up such simple details? Most of the time they could solve the problem simply by switching the swing on the door.”
“Whether you simply fall down, fall into a river, or fall into the Grand Canyon, slipping on wet rocks isn't a freak accident. Those of us who haven't had multiple dogs escape and get hit by cars recognize it as an easily foreseeable consequence of venturing onto slippery rocks.”
“Good opinion, but I stick with what I see. If I were to fall in the grand canyon that would be a horrific freak accident. It's more than the normal accident that generally happens. That's out of the norm. Regards to the dogs, you never do it again if you get the second chance. I know I would not, and my dogs who lived didn't get near the road again either.”
“How about all those other people who got off the bus and crossed at the same location without any injuries? Were they also reckless?
Jaywalking is about where you cross or what color the lights are, not about whether or not it was safe to cross at the time or if you were successful.”
“YES, every single one of those people were extremely reckless. This is a very busy thoroughfare that has a 45mph posted speed limit that is often ignored. That is a fact that every single local knows to be true. Only the impatient, the clueless, or the reckless will cross these major Marietta roads without a stoplight and x-walk. It's obviously risky.
Search Austell circle SW, Marietta GA (that part of Austell Rd is where the bus dropped her off, just a few dozen feet north of the north entrance of Austell Circle.)
Look at the size of the median the mother used as a "safe" point while waiting for the traffic to pass by. That median is very narrow and all a driver has to do is veer over by 12" and they might clip a person waiting in the middle to get to the other side. I am talking a sober driver, I see how people drive here on their phones or fiddling with this gadget or that. Waiting on that small median after rush hour traffic is a bad idea even for an athlete.
I get nervous on Marietta roads, even if there is 2,000 lbs of metal and airbags wrapped around me for safety.”
“How do you know there wouldn't be an issue? There's nothing in this story to suggest that the driver's impairment was actually a cause of the accident, and his failure to stop was a crime committed after the accident. The mother was apparently trying to wait, and that's presumably because she thought it was unsafe to cross at that moment.
Suppose the kid had been hit by a young, competent driver with a clean record and they had stopped? How does that change anything about the mother's actions or her culpability for what happened?
Of course that's not to say that she should ever have been charged. Jaywalking laws are an imposition on all of us by the nanny state because people sometimes have trouble accomplishing simple tasks.”
“Actually, all I did was apply your reasoning to the existence of the sun. I'm heartened to see that you recognize that such reasoning can lead to incredibly stüpid conclusions. It's too bad it's easier to see when it's not you that's doing it.”
“I hope that if I ever screw up and do something this careless and foolish that others are smart enough to learn from my mistakes regardless of the outcome. If you want to coddle her and not tell her she made a stupid and easily avoidable mistake that's your choice, but others are similarly free to point out the simple truth.”
“There are definitely whirlpools, mostly small but sometimes very large and powerful, in many rivers but Jane is talking about a particular feature that paddlers call a hydraulic. Other names include vertical eddy, keeper, and hole.
When water pours over an obstruction in a river it creates a depression downstream of the obstruction, and aerated water is recycled in a circular motion (in the vertical plane) within that depression. Much as in an eddy, this can result in a powerful current that flows upstream, and back into the depression. Some hydraulics are a bit sticky and fun to play in, while others are virtually impossible to escape. Here are videos showing both types: http://www.youtube.com/watch?v=ZEWdjwbYBgg http://www.youtube.com/watch?v=EKi2VaEGfsQ”
“A 30 foot fall is a 30 foot fall. It's all about how sudden the stop at the bottom is. He was very lucky he didn't get a couple of feet further left where he'd have fallen a bit further and then had a much more sudden stop.”
“Well, it was still spectacular, but hitting a down slope at 10 ft and rolling 20 feet isn't the same as hitting a plane at 30 ft. Agreed, he was very lucky.”
“Yup, it's all clear from the end result. That's how I know for sure that the sun was created when a giant space creature lit one of its enormous and long-lasting farts.”
“Boy you really are running scared from the truth. How about some intelligent conversation, In stead of sick sarcastic pop offs that proof nothing but your low intelligence and fear of the truth. I sure touched a nerve though challenging your EV. god. Oh well I never apolize for the truth. How you find it some day.”
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