Anyone not seen this Old Chestnut? - I do like it!

Which gave me the suggestion of Professor Miller;
 
Fascinating stuff.
I am particularly interested in good science study but also in reaching conclusions that are incorrect, even absurd too because there are many instances in life where we make conclusions that are later proved to be absurd yet at the time we perceive them as correct and accepted by many.
Even the great and good are capable of miscomprehension which makes me feel happier about myself.

I think the opening clip is great fun and shows us how misconception, conspiracy theories and downright scams can creep in.

One example of absurdity was voiced by Benny Hill.
Ok perhaps in poor taste by demonstrates false logic very well and we all see it so it becomes funny.

Bombs on planes - The chances pf a bomb being on a plane you travel on are a million to one against, therefore the chances of there being two bombs on that plane must be one million x one million to one against.
Next time you go on a plane, cut down the risk - take your own bomb.
 
We all keep a quite simplified version of the world, for practical reasons.
Agreed, and sometimes that leads us to the wrong conclusions and those beliefs are sometimes held for long times and sometimes carry thru to support or disprove other beliefs too.
Fascinating when you look at the reasons for beliefs and how they sometimes change very much and then we wonder how the heck we actually believed them in the first place.
Percentages and probabilities are examples of such.
 
Interesting. Poyntings vector is usually associated with electromagnetic waves (as he says) rather than circuits. But power is of course also given by current*voltage drop, analogous to fluid flow*pressure drop in hydraulics. Much easier to calculate!

We do all have to simplify things, to a level where we can make sense of them....

Another little known effect, is the 'skin effect', as ac frequencies move towards rf frequencies, the current flow, tends to be around the outer skin of the conductor. The higher the frequency, the more pronounced the effect.
 
We do all have to simplify things, to a level where we can make sense of them....

Another little known effect, is the 'skin effect', as ac frequencies move towards rf frequencies, the current flow, tends to be around the outer skin of the conductor. The higher the frequency, the more pronounced the effect.
That's right, so thin-walled tubes are as good as solid wires for high frequencies.
 

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