Posts by Gary Charpentier


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21) Message boards : SETI@home Science : Question about signal polarization (Message 1634383)
Posted 3 days ago by Profile Gary CharpentierProject donor
Hello everyone,

I have a few questions about signal polarization as it applies to SETI research in particular, although I suppose it's really more of a basic radio question. I tried a search here but got lots of returns and couldn't effectively sort through them.

Anyway, let's assume:

...an intentional ETI signal is discovered, and the polarization periodically flip-flops. (As I understand it, at the long distances dealt with, detecting polarization might be a bit tricky, but for this let's say it's easy to detect.)

...the science team isn't concerned about the signal polarity and therefore isn't checking it. To them, the signal is just one of undetermined and unexamined polarity.

...another science team looks at the signal but they're experiencing some sort of technical glitch and can only detect the signal when the polarity is the one they're currently able to see.

So the questions:

What sort of glitch, if any, would let them detect only one of the two polarities? What equipment would be the source of the problem?

Is this even a scenario that makes any sense in the real world, or is it something that wouldn't/couldn't happen because of the nature of radio signals?

Just so you know, I'm getting in way over my head. I usually can't even find the TV remote. ; )

Dave

For the purposes of Seti there are 2 types of polarization, linear and circular, which has two flavors. Polarization is a property that is determined by the physical construction of the antenna. As such there isn't a way for it to fail. Circular polarization antennas will receive linear polarization signals, but at a small loss. Linear antennas will receive circular signals, also with a small loss. As two the flavors for circular they are either left or right. Left antennas are terrible at receiving right signals and vice versa. That is why every Seti project collects in pairs. As to linear, here on earth, we have two flavors commonly used, vertical and horizontal, but which way is vertical in space? That is why linear is generally ignored in favor of circular.
22) Message boards : Politics : I have been slimed.. (Message 1634330)
Posted 3 days ago by Profile Gary CharpentierProject donor
Ian, the sugar tax is very much "on topic"!!! It is an example of a local government (Berkeley) levying a tax on consumption of a class of foods (high sugar beverages), because heavy consumption of sugary beverages poses public health risk. The money generated from this tax is supposed to be used to educate and support citizens of all ages in the area of making healthier food and beverage choices.

Berkeley was one of the few areas where that measure passed. I hope the idea catches on. I also hope it works!!!

I know there were, and still are, opponents of this measure. I know there will be some inconsistencies in the execution of this tax. I still think it is a step in the right direction.

A sugar tax is a nice idea, but perhaps needed at least as much is a salt tax.
23) Message boards : Politics : I have been slimed.. (Message 1634193)
Posted 3 days ago by Profile Gary CharpentierProject donor
And if you want me to get REALLY political, I am all for government funded, single payor healthcare... the kind of healthcare we DIDN'T get with the recent reforms.
(Where is my liberal utopia, gosh darn it!!!

If the government is to be involved in health care, single payer is the only viable option. There is no reason to create a additional layer of bureaucrats in private insurance companies, wall street investment bankers wanting their payout, etc.
24) Message boards : Politics : 100 days to go (Message 1634092)
Posted 4 days ago by Profile Gary CharpentierProject donor
Would a do nothing parliament be the best result? From the do nothing congress country.
25) Message boards : Cafe SETI : Transportation safety 2 (Message 1634081)
Posted 4 days ago by Profile Gary CharpentierProject donor
Bet nobody is prosecuted

Why would anyone need to be prosecuted? It developed a list, so they ran it onto a sandbank to stop it capsizing and sinking, sounds sensible enough.

Someone might need to be fired if the cargo shifted but that is all.
26) Message boards : Science (non-SETI) : Shuttle Orbiter, alternate designs to be nuclear (Message 1634075)
Posted 4 days ago by Profile Gary CharpentierProject donor
The Space Shuttle Program had alternate designs to make the orbiter nuclear Post 1980.

Circa 1972 http://ntrs.nasa.gov/search.jsp?R=19720009983

Has nothing to do with THE SPACE SHUTTLE, but is for any space shuttle. Note the line where it says the engine is delivered to orbit separate from the rest of the vehicle. This was a concept for shuttle between planets, when we thought there would be a real space program today.
27) Message boards : Politics : I have been slimed.. (Message 1633935)
Posted 4 days ago by Profile Gary CharpentierProject donor
Without education you might choose to live on fast food and drive up my health care costs.

That should make no difference on your health care costs, because you pay for your health care, no one else does and you don't pay for any other person's health care either.

Oh, wait, you do want someone else to pay for your care, which obligates you to pay for others care (insurance); so now we get your point.
28) Message boards : Politics : Middle East Timebomb (Message 1633930)
Posted 4 days ago by Profile Gary CharpentierProject donor
You WIN Wars by becoming Greater Killer's, than your Enemy. No other way.

That won't win a war. You win a war by convincing the other side to surrender. Doesn't matter how you do it, just that you do. Killing is an inefficient way to that end.
29) Message boards : Politics : I have been slimed.. (Message 1633880)
Posted 4 days ago by Profile Gary CharpentierProject donor
Gary, not all people enjoy as fine a mind as you have. I, too, attended California public schools, but I find that I still fall victim to advertising on a shockingly regular basis.

Perhaps it was my teacher, or the lesson plans, but it did very much stick with me. I suspect it was not just for advertising, which were the examples used that I remember, but for a method to take apart most any argument someone advanced.

McDonald's markets heavily to children. They do that because it pays.

I can't figure out who their current "I'm Hating It" campaign is actually aimed at. Lots of flowers and the like, I'm wondering if it is for aging hippies?

I have no doubt that the charitable arm of McDonalds, the Ronald McDonald house, provides excellent support to families of sick children.

They do and the people who work there are amazing. Unfortunately, professionally one of their clients needed the services my employer offers, which RMcDH paid for, less our labor which we waived under the circumstances.

I also have no doubt that regular consumption of cheap, poor quality, nutritionally questionable fast food does not promote health in children or in adults.

No doubt. I suggest everyone that orders from them demand a "small" as for some reason they can't understand to offer that size, they only have large and huge. Presently though they are having a lot of trouble selling their products. I suspect because the quality is so low with higher prices than their competition. http://www.fool.com/investing/general/2015/01/27/mcdonalds-corporations-2014-collapse-ends-an-envia.aspx Perhaps the public really doesn't want their swill anymore?
30) Message boards : Politics : Middle East Timebomb (Message 1633742)
Posted 4 days ago by Profile Gary CharpentierProject donor

There is that, and there is the huge difference in sentences as well, and overcrowding, amount spent on rehabilitation vs punishment, the list of those differences is very long. I also expect there are differences post incarceration as well, such as the ease or difficulty of obtaining gainful employment with a conviction on record.


As I said, *cultural differences*. But, then, what does one expect from a former British Colony whose earliest British citizens included a large group of the most extreme of their religious nutcases (the New World Puritans) and was used as a dumping ground for British Convicts from its founding until its independence. As much as one quarter of British "immigration" to their North American Colonies was their criminals getting sentenced to "transportation" until 1776. After that the UK had to start using Australia.

Perhaps the first peoples should insist on them being repatriated beck to Britain?!
31) Message boards : Politics : Hi. I'm Alex and I am an INTJ. (Message 1633741)
Posted 4 days ago by Profile Gary CharpentierProject donor
I did a little more learning about the test and I can see why it failed to understand me.

Isn't it a bitch when you get to the question that is one or the other and you want to mark strongly on both?!
32) Message boards : Politics : I have been slimed.. (Message 1633739)
Posted 4 days ago by Profile Gary CharpentierProject donor
Correct?

WRONG.


With "Ronald McDonald" playing the game of pied piper to the children, the adults follow too...

I'm sorry you did not get the mandatory classroom lessons in California on how to resist marketing claptrap around the fourth or fifth grade. I can't hear an advertisement now without separating out the hype and discarding it.

P.S. I fully support the Ronald MCDonald House having met people they have helped in difficult times.
33) Message boards : News : Prof. Charles Townes has passed away. (Message 1633737)
Posted 4 days ago by Profile Gary CharpentierProject donor
RIP Professor Townes.
34) Message boards : Politics : Middle East Timebomb (Message 1633612)
Posted 4 days ago by Profile Gary CharpentierProject donor
That depends on who runs the prison

Rubbish!!!

So the figures that you quote say 50% of USA felons get re-convicted, my figures say that 25% of UK felons re-offend.

So does the UK have a better prison system than the USA, or does the USA have a more violent society. Depends upon what you want to read into the figures.


Actually, it is a bit more than half... close to two-thirds... but you are right. much of it is due to cultural differences.

There is that, and there is the huge difference in sentences as well, and overcrowding, amount spent on rehabilitation vs punishment, the list of those differences is very long. I also expect there are differences post incarceration as well, such as the ease or difficulty of obtaining gainful employment with a conviction on record.
35) Message boards : Cafe SETI : TLPTPW #230 - AO Men's Finals!!! (Message 1633610)
Posted 4 days ago by Profile Gary CharpentierProject donor
Ah a little win
36) Message boards : Politics : Middle East Timebomb (Message 1633553)
Posted 5 days ago by Profile Gary CharpentierProject donor
People come out of prison worse than when they went into it.

That is not true. But there is a 25% re-offending rate. re-offending

That depends on who runs the prison. http://www.bjs.gov/content/reentry/recidivism.cfm
37) Message boards : Politics : I have been slimed.. (Message 1633429)
Posted 5 days ago by Profile Gary CharpentierProject donor
Why do McDonald's french fries contain so many ingredients in the US.
Surely all you need is Potato's and oil, and maybe salt but that should be personal choice, shouldn't it.

Mythbusters Grant Imahara explains. (Youtube)

Focus group. Any more questions?

Or for those that need a bit of help understanding, they try many different recipes and have different groups pick the one they eat the most of. They may not actually be the one they think tastes the best.
38) Message boards : Politics : Against ALL women - Infanticide, Slavery, Rape, Trafficking... (#2) (Message 1633402)
Posted 5 days ago by Profile Gary CharpentierProject donor
I agree with you and I wouldn't be a bit surprised. But this Swedish attempt is just pathetic ....

Hardly more pathetic than having a banana and an orange teach children about stuff. Or cartoon ponies about the magic of friendship.

Furthermore, it normalizes private parts, rather than pushing them into a corner of shame and disgust. Its a body part, everyone has one, its nothing to be ashamed about. And as some Swedish critics point out, they could use it as a jump off point against gender norms and stereotypes, which would be nice.

+1

+2, and it seems there are people terrified to have the next generation informed.
39) Message boards : Politics : Racist? [yes you are] (Message 1633401)
Posted 5 days ago by Profile Gary CharpentierProject donor
Ah, yes you are:
http://america.aljazeera.com/opinions/2015/1/are-millennials-tolerant-racists.html
Are millennials tolerant racists?
America’s newest generation think they are postracial, but data suggest otherwise


Millennials are considered the most diverse, tolerant and racially progressive generation in U.S. history. “The younger generation is more racially tolerant than their elders,” the Pew Research Center declared in a 2010 report based on analysis of more than two decades of data. Commenting on the report, The Chicago Tribune’s Ted Gregory went one step further, arguing millennials are “the most tolerant generation in history.”

America’s newest generation is more racially progressive than its predecessors’. For example, the Pew study shows that millennials are more likely to support interracial marriage and dating and are generally more accepting of immigrants. They see themselves as racially progressive as well. According to a 2014 survey (PDF) of millennials conducted by MTV and David Binder Research, nearly all respondents said they believe “everyone should be treated equally, regardless of race,” 72 percent said “their generation believes in equality more than older people,” and 58 percent believed “racism will become less and less of an issue” as they take on leadership roles. More than half believe that racial bias is “small but real” and “subtler” than it was in the past.

However, such pervasive sentiments do not reflect reality. In fact, beneath the facade of a colorblind generation remains a deep underclass. And millennials are not as racially progressive as the narrative suggests. Studies show that white millennials share similar opinions as older generations on issues such as race. A closer look at the Pew Center’s data and other relevant research shows a less-reported but revealing fact: Much of the purported tolerance of the millennial generation is due to the inclusion of more people of color in the pool.

A good read and follow the links too.
40) Message boards : Politics : Middle East Timebomb (Message 1633293)
Posted 5 days ago by Profile Gary CharpentierProject donor
Well no. I wouldnt let that reintegration training take just one day. It would be done by experts, probably people who know how to deprogram people liberated from other cults. In any case, we got a whole science dedicated to changing peoples thinking and behavioral patterns. They should be used for this. Afterwards, it would make sense to keep monitoring them, at least for a few years, just to be sure.

I'm not sure I would want that many experts or the science developed that much. Next thing we would know some person with delusions of grandeur, like Hitler, would foist these experts on the world to program all of us.


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