John Curl's Blowtorch preamplifier part II

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I hope this comes true... I'll hire one of the kids standing outside to push my cart thru the store and out the door.

-RM

Remember when the kid in produce would weigh your bag and price it? I did that. Virtually everything I buy is fresh and needs weighing so I also avoid the auto-checkout. Recent articles are still very pessimistic on the credit cards with chips happening in the US anytime soon.
 
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Why do you assume it is an error? Their history only tells them you looked, they do not have access to the information that you purchased.

Same with me and the brass and aluminum, a dehumidifier, a drill battery. No information on whether or not I purchased.

jn

Maybe not an error as such, but the money for those ads is clearly wasted for that shop. But they keep on popping up!

Jan
 
Kindhornman;4008818 I too have noticed the directed advertisements based on some web search I have done. sometimes welcome and sometimes just distracting. It is amazing how pervasive that can get though as they will show up in totally unrelated searches or page links. I just think it is a part of the technology that has become a part of life. I draw the line with tracking my movements with GPS from a phone said:
To avoid directed advertising you can try Duckduckgo. For totally different search results for a change of pace maybe Yandex or Baidu.
 
Hi,



Not just that. You, that is, the customer, are paying these ads.

Ciao, ;)

Actually the inverse. The more effective the advertising, the lower the cost of doing business. So with competition prices go down.

Knowing which advertising method is most effective is actually easier with internet driven and tracked advertisements.

There is quite a bit of skill in developing and presenting advertisements and measuring the real results.

The humor in the recent past was telephone surveys predicting election results. Suffice it to say folks who still have home telephones are not representative of the general population. (They tried to fix this with Mall interviews, but somehow they missed the Amazon Mall.)

Now internet advertisements that block the full screen often get me to quit the site. So there actually are some advertisements that decrease sales.
 
Remember when the kid in produce would weigh your bag and price it? I did that. Virtually everything I buy is fresh and needs weighing so I also avoid the auto-checkout. Recent articles are still very pessimistic on the credit cards with chips happening in the US anytime soon.

I have been told that a small v cut near the edge of the card breaks the aerial nicely
 
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Interesting.

You've probably heard the one about the lady who had a store card. Well, with what she bought and when she bought it, it was very easy to determine her reproductive status. At some point in her relationship with the store and the store card, she purchased a pregancy test kit and thereafter none of the stuff she was purchasing prior to that on a monthly basis. In due course, she got a a letter from the store, congratulating her on the happy upcoming event - still some 6 or so months away.

The only problem was, she was a teenager, and one of her parents opened the letter. The store new before the parents that the daughter was pregnant. This was a high profile case of invasion of privacy and the information was gleaned from mining store purchasing data linked to her credit card.

Big corps, banks, ISP's etc know an incredible amount about you. They mine huge data cubes and can pull out all sorts of things about you.

Example: I did not back up my smart phone for about 18 months (yes, I was stupid) and I ended up losing it.

I duly got a new one, same brand, and started the laborius process of entering the numbers - just the ones I needed to call. About 3 days after I got the new phone, I got up, looked at my phone and the adddress book was completely populated with all of my numbers, plus the numbers I had when I was living in Japan - about 1500 in total with email addreses the lot. Where did it come from? Its all up there in the cloud and they probably waited to make sure I was who I was, and voila.

If you use Gmail, Google, facebook, virtually any smart app, a charge card etc they have you - no escape!

I'm always telling my guys to manage their online profiles carefully as well since there are two versions of you - a physical one and a virtual one. Companies have been using specialist services that build an internet profile of a potential (and current) employees for quite a few years and they can tell a lot about you -your political pursuations, habbits, who you are lilely to associate with etc. Theres no such thing as 'right to be forgotten' depite the earnest efforts of a few well meaning people in EU - the data has been captured and stored somewhere and being used to profile you.

;)
 
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Adblock and similar solve half of the issue.

The other half is you are still being tracked, so that's why you need to surf with Duckduckgo, a proxy or a tracking blocker, if the last one exists.

I don't mind being tracked but the thought of a database somewhere collecting years of data seems unnecessary and a little sinister.
 
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Where did it come from? Its all up there in the cloud and they probably waited to make sure I was who I was, and voila.

If you use Gmail, Google, facebook, virtually any smart app, a charge card etc they have you - no escape!

And Microsoft.

I've been testing out W8.1 Enterprise on an old laptop... really liked it (that's another story) and so bought the full version for my main PC. I did a super clean install, drivers from USB and then updates.

Wait a minute though... how did it know I wanted that background on the start screen, and those fonts and text sizes. Internet explorer was all ready and waiting with all my bookmarks and favourites ready to go. Where did they come :D Up there is where, the cloud.
 

AKN

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And Microsoft.

I've been testing out W8.1 Enterprise on an old laptop... really liked it (that's another story) and so bought the full version for my main PC. I did a super clean install, drivers from USB and then updates.

Wait a minute though... how did it know I wanted that background on the start screen, and those fonts and text sizes. Internet explorer was all ready and waiting with all my bookmarks and favourites ready to go. Where did they come :D Up there is where, the cloud.

Hi Mooly,

Because you signed on to Microsoft during install. It is still possible to bypass MS sign on during install. Of course slightly hidden and not intuitive but still.
 
jneutron said:
Note the inversion of current density at the surface before the overall current has gone negative.
I think it is better regarded as a lag than an inversion. You have a distributed filter. The current inside the material is both attenuated and phase shifted. The net current is the integral of the current density.

Eesperado said:
Can we live without a mobile, nowadays, and block all our friends using Android ?
Yes. I have no idea and no interest in whether my friends use Android or not. My mobile does talk and text only; I use it quite rarely.

jneutron said:
BTW, it is important to understand, throughout the ages there have been doomsday proclamations from vocal people...the millennium bug, global starvation, etc... none of them came true in the timeframes predicted. Now, you rail about big brother...

My belief is that the reasons many predictions do not come true is because people like you made the predictions; and others did their best to prevent it.
Yes. The 'millenium bug' was certainly real, but overhyped. The reason it was overhyped is that it was the only way for engineers to get the attention of politicians and managers (via journalists) so they took their heads out of the sand for a while and planned (and funded) some action. The doomsday scenarios of planes falling out of the sky were always exaggerations, but some things would have stopped working for a while if people like me had not checked and enhanced the date handling in some software. I found a few minor problems (in the power industry).
 
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