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Maybe Better Answerd In Science, I Dont Know! But....
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Been over my son's today, in Haslington (A suburb of Crewe) and could not get a decent telephone reception to Stoke, let alone a video reception which proved impossible...
So how come that NASA spoke (and received) video calls from nearly 1/4 of a million miles away
back in 1969 when man went to the moon?
(long before 1g, 2g, 3g, 4g and now 5g??
If earth can communicate with space all that time ago
Then why (50 yrs later) cannot we communicate a few miles down the road??
So how come that NASA spoke (and received) video calls from nearly 1/4 of a million miles away
back in 1969 when man went to the moon?
(long before 1g, 2g, 3g, 4g and now 5g??
If earth can communicate with space all that time ago
Then why (50 yrs later) cannot we communicate a few miles down the road??
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Hamming codes
at least three on U tube to keep you off the street
1980 - wasnt there a Mars/Mercury probe? anyway the strength of the sigmal was around a trillionth of a watt - that's very small, reader - and so an error-correcting code was used
honestly someone asked -and this is how they recd weak signals from very far away.
so that is the Jupiter or Mars bit done (*)
haslingdon - I will have to think about that one
(*) for some reason they did this ( hamming error correcting codes) in O.U.Maff 206, which I did around 1983.
You remember The Memorandum, Warren Mitchell played Thumb, about the office language, Ptydepe ? ( tie-deep in English but puh-tee-deppay in Czech) in which it was written by Vaclav Havel, later first president of the independent republic?
https:/
each word is 60% different from each other for max comprehension.
gh ( guh-huh) is used for 'productivity' - the commonest word
same principle in Hamming codes
at least three on U tube to keep you off the street
1980 - wasnt there a Mars/Mercury probe? anyway the strength of the sigmal was around a trillionth of a watt - that's very small, reader - and so an error-correcting code was used
honestly someone asked -and this is how they recd weak signals from very far away.
so that is the Jupiter or Mars bit done (*)
haslingdon - I will have to think about that one
(*) for some reason they did this ( hamming error correcting codes) in O.U.Maff 206, which I did around 1983.
You remember The Memorandum, Warren Mitchell played Thumb, about the office language, Ptydepe ? ( tie-deep in English but puh-tee-deppay in Czech) in which it was written by Vaclav Havel, later first president of the independent republic?
https:/
each word is 60% different from each other for max comprehension.
gh ( guh-huh) is used for 'productivity' - the commonest word
same principle in Hamming codes
"Would you have had that meeting in 1969? " - no, of course not what are you talking about? You said: "If earth can communicate with space all that time ago
Then why (50 yrs later) cannot we communicate a few miles down the road?? " - I say that's BS, you just found a part of the infrastructure that isn't quite working and then said we are no better off that 1969. It's like saying that if your car is broken down you are no better off than when we had horse drawn vehicles. Crass.
Then why (50 yrs later) cannot we communicate a few miles down the road?? " - I say that's BS, you just found a part of the infrastructure that isn't quite working and then said we are no better off that 1969. It's like saying that if your car is broken down you are no better off than when we had horse drawn vehicles. Crass.
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