laws that if one thinks about marriege and does a action he is married is one married

lets say one was talking to a girl on the internet who he didnt know and he for no reason at all started to think about marriege and a crazy thaught poped in to his head and said if you send that another messege your married and he did are you married?

No. There are certain formalities for a Jewish marriage, one of which is 2 kosher witnesses who witness the act of marriage.

Would a web camera work for this purpose?

I doubt it as you are not witnessing the couple getting married, merely an electronic representation of them.

I was asking that because, I wanted to bring out that I think that I may add to what this anonymous question is asking, is, "what constitutes listening and seeing according to Halacha"?

quote:

lets say one was talking to a girl on the internet ... and said if you send that another messege your married and he did are you married?

First thought is if the only connection is through the internet how can he know she is marriagable, or even female?

And second thing is the value an instant message? Is it enough for a minimum value of an wedding ring?

quote:

what constitutes listening and seeing according to Halacha

Part of a witness to a wedding ritual may be to know what is supposed to be said, and to have the ability to hear it live, as in through analog (not digital reproduction) transmission... kind of like being yotzei a bracha.

In simple layman terms, rob, what's the difference between analog and digital? And if they are both created by something other than the human vocal cord, why would analog be any better?

Here's an obvious difference between analog and digital... if one were to write out a mezuza scroll by hand, their hand has infinite precision as to how to artistically write the letters with a pen. The pen is an analog instrument that is an extension of the scribe's hand /fingers / muscles.

A digital computer, even with very high resolution, by definition, is limited to only specified incremental positions...

For example if a digital scanner of sorts were wired up to detect arm positions and muscle tension and try to replicate the hand motions necessary to write a mezuza scroll onto a robotic arm that is under digital control, it would have to be "choppy" or lacking in resolution... this is called quantization.

If however there were a machine assist, something like power steering in a car, the human operator is directly controlling the smooth operation, and has enough precision, that apparently it could well be a kosher mezuza if an analog replication means were employed to multiply the hand motions in parallel upon another parchment... it would still have the Din of writing.

This also comes up regarding a long distance phone call or any modern digital telephone system, where there is quantization and compression of the digital data... one cannot be yotzei a bracha over such a communication path.

I'm not sure how much feedback (force feedback in an amusement race car gae steering wheel tries to simulate the feedback of a real steering wheel when a car drives over a bump or has a tendency to return to straight from a turn) is necessary to consider it under live control.

Here are two other examples of remote control:

In a chemistry lab or nuclear power plant there are times when items to be handled are too hot or caustic to be handled directly, and gloves would not be sufficient, so some sort of remotely operated tongs are used through a separation wall.

In a modern airplane, the pilot is "flying by wire" by which even when he is controlling the aircraft, he's giving instructions to a digital controller that sets a target engine power and wing flap angles. Its clearly enough resolution or precision to land safely and avoid collisions, but there is something lacking, and I see this lacking as the same as what prohibits a digital replication of hand gestures for scribing.

Ears and eyes are an "analog" way of hearing and/or visualizing something?

All natural senses are analog - only a digital computer or modern telephone are non-analog in this fashion.

I believe that a hearing aid is also analog; however a noise-cancelling headphone probably uses Digital Signal Processing, and perhaps could be significant if used by a person to hear a bracha to which he wants to be yotzei.