In 1969 when the zx80 computer was 11 years away.

We can't go there again.......Computer says no.

zx80 computing power was beyond comprehension then.

http://www.fruitcake.plus.com/Sinclair/ZX80/FlickerFree/ZX80_SpaceInvaders_1K.htm

If we listen to a reporter half way across the world being interviewed. We wait 5 or 6 seconds for a response. In 1969 they talked to Houston in real time,no delay. Impressive stuff.

30 worlds away.

just read how the first computer game called 'galaxy game' and  coin operated ,appeared as early as  1971 - Space Invaders didn't appear until 1978


http://en.wikipedia.org/wiki/Galaxy_Game

We went to the moon

Did Wallace and Gromit have a computer ! No...!

I rest my case...!

There are times in life when you realise you have been mugged off. Accepting this is difficult for those with tiny wangers, and even smaller brains.

have a nice day.

Title: News Interviews via satellite - delay time
Post by: ansky212 on May 12, 2011, 07:15:07 AM
What is the reason for the long delay time when tv stations do interviews via satellite?  Person A will ask a question to person B and sometimes it can be up to 5 seconds or more before person B responds, with an awkward silence in between.  Often the long delay prompts the people to talk over each other because they are waiting for a response from each other.  It makes the whole interview very awkward to watch.  For whatever reason these delays seem to have gotten worse lately.  Is any part of the delay intentional for screening purposes, or is strictly due to technical limitations?

Title: Re: News Interviews via satellite - delay time
Post by: Pab Sungenis on May 12, 2011, 08:14:05 AM
It's because radio transmissions can't travel faster than the speed of light.

The interviewer's signal has to be bounced up to a satellite in geosynchronous orbit, which takes about a quarter of a second.  It then has to bounce down to the ground, another quarter of a second.  There's a minor delay as it's decoded if it's a digital signal, which could add about another quarter-to-half second of lag time.  Then the interviewee can see/hear the question.

The response is digitally encoded (lag) and bounced back up to satellite (quarter second).  Bounces back down (quarter second) and is decoded before we see/hear the response.

A geostationary orbit (GEO) is a circular geosynchronous orbit in the plane of the Earth's equator with a radius of approximately 42,164 km (26,199 mi) (measured from the center of the Earth). A satellite in such an orbit is at an altitude of approximately 35,786 km (22,236 mi) above mean sea level. It maintains the same position relative to the Earth's surface. If one could see a satellite in geostationary orbit, it would appear to hover at the same point in the sky, i.e., not exhibit diurnal motion, while the Sun, Moon, and stars would traverse the heavens behind it. This is sometimes called a Clarke orbit, after an early proposer, Arthur C. Clarke. Such orbits are useful for telecommunications satellites.
A perfectly stable geostationary orbit is an ideal that can only be approximated. In practice the satellite drifts out of this orbit because of perturbations such as the solar wind, radiation pressure, variations in the Earth's gravitational field, and the gravitational effect of the Moon and Sun, and thrusters are used to maintain the orbit in a process known as station-keeping.
[edit]Other geosynchronous orbits

Are you mental?

the wonder that is digital radio , is behind analogue by almost a second

what a fantastic breakthrough they have there


handy for spanish football though

Likewise digital telly Donny before analogue was switched off.

Here's a curious and rather random quiz question:
The moon was last visited by humans on 7th December 1972, although we've since had a lot of good looks at it since then of course.
If the moon goes unvisited by humans until 21 Sept 2017, a period of almost 45 years, whose ( or rather what's ) record will it break?

A few clues ( ruddy obvious ones really ):
The moon was walked on by 12 good men between 1969-1972 and hasn't been revisited for 40 years almost.
There's a place that was walked on by 10 fine men in 1911-1912 and no-one returned for almost 45 years.

Yet no-one seriously suggests that those pre-WW1 adventurers faked their photographs. No-one said in the early 1950s that it must have been bollacks or else why has no-one returned.
Different standards of conspiracy theories today i suppose, a world where David Icke draws a crowd but hardly anyone has heard of Fred Sanger.

In 1912 your average nutter did not have any access to a publishing mechanism for his/her crazy ideas....now they're everywhere....QED...

hardly anyone has heard of Fred Sanger.

Did he have Horses in training with Henry Cecil

I think I see what you're saying The Leopard - if internet blogs and home-made youtube vids had been around a century ago people would have been saying that Greg Rutherford had faked splitting the atom, or that Einstein nicked all his best equations from a returning African missionary.

Ffs, I got that badly wrong - Rutherford probed the structure of the atom, he can't take really credit for splitting one in two.

The interesting fact is that the Space Shuttle has not been sent further than 400 miles into space.

Yet in 1969 we sent men on a 240,000 mile mission in to space to visit the moon.

This fact makes your face wobble.

Many of today's mobile phones have a camera resolution than the camera on the Cassini Mission currently circling Saturn.

AG,

But surely you can see that motivation is the key factor here. In the 60s it was worth investing a huge amount of resources on getting to the Moon for political reasons, and now it's a bit of a waste of money. Ever since computers became impressive, there has been a huge demand for ever more impressive ones.

Also, don't you agree that the Soviets would have mentioned something if the US had faked the whole thing?

Although I'm glad that there are people like you who question official versions of everything (otherwise governments would lie to us more often), I find the Moon landing conspiracy theory one of the least convincing.

Petra

Alien intervention.

Ah. Fair enough then.

Bongo makes a good point. People went to the South Pole in 1912 and hardly bothered afterwards

Getting to such places is seen as amazing and people think wow . But once people have been there nobody is excited about going there again as they are just wilderness.

Is it that surprising that the moon landings were in 1969 when 24 years earlier there were jet fighters ,ballistic missiles and atomic weapons which nobody thinks were faked

To be honest Petra i only said that fact about the 240,000 mile made my face wobble. Not deserving to be outed as a conspiracy theorist again.

My guess is that every space mission is a commercial decision. Lower orbit mission hold priority for the military and national interest. Finance is not unlimited and why send men when you can send probes.

However the technology available for the average man must have been a couple of decades behind that of the space programmes. For example the hand held calculator was only available in 1967. Yet i am sure that the military and NASA held this technology for many a year.

Like todays hologram technology which has not been released to the masses.

OK, that actually is fair enough. I retract the conspiracy theorist accusation (in this case), although my mental image of you now has a wobblier face. Deal?

It`s a deal as long as you leave the tramps alone?

Funny you should mention that - today I bought a tramp a meat pasty and asked him how he was.

How was he?

vegetarian.

I wonder if he got a buyer for the meat pasty. Hopefully traded it in for a swag of White Lightening and roll-up made from old roll-ups.

I hope made the commercial decision which was right for himself.

Angel Gabriel ...he did what you hoped

and dies of starvation tomorrow .

Scissors

As much chance as a tramp dying of starvation as Neil Armstrong walking on the moon again.

We is a throw away society. Tramps have never had it so good.

^^^but a quality clean pasty is like gold dust. It`s worth a trade for some medicine.

He would be able to trade between himself and another tramp but perhaps a new street dweller, a wannabe tramp that still can`t eat nuggets from the bin but begs enough for chemical juice and is open to food trade.

^^^but a quality clean pasty is like gold dust. It`s worth a trade for some medicine.

He would not be able to trade between himself and another tramp but perhaps a new street dweller, a wannabe tramp that still can`t eat nuggets from the bin but begs enough for chemical juice and is open to food trade.

P&E,

I'm very sorry for hijacking this thread with tramp stuff. It was never my intention.



Everyone else,

I'm pretty sure he started eating the meat pasty immediately. I didn't really understand his response when I asked how he was because he was speaking about as clearly as Kenny Dalglish but in Spanish. I think he said he was OK and that he was going to be busy (!) until the end of the week. He may have not been in full possession of his mental faculties. I may buy him more food and chat to him in future in an attempt to better understand the world of tramps.

Right, I think the next post should be about the Moon.

Moon Hoax NOT:

.
http://www.youtube.com/watch?v=sGXTF6bs1IU

hardly anyone has heard of Fred Sanger.

danniellasmincepies
28 Nov 12 22:29   
Did he have Horses in training with Henry Cecil

Not sure, but he was once married to Queenie Watts.

It was NorthernLad's 2 Lurpak looking friends and their tractor beams ffs dint ya knooo?

theres life on the moon.


no ewetube no extraordinary claims yada yada, just plain easily proven life.

i will take the silence as a 'dunno'


all those 12 men left bags of organic waste [sh1t], the americans have tried recently to get international agreements with both china and india, to have their respective landing sites kept as historic sites and left undisturbed.

the yanks atleast credit them with the ambition to land a man on the moon, but the yanks want their 'sh1t' back, they wanna see how 40+ years of living on the moon has mutated the bacteria.

in effect you could say those guys seeded the moon.

Are (is?) the forum interested in the computers that were used to get men to the moon? They were DEC PDP 11s, and if you like I can tell you all about their insides and operating system and programming languages and device drivers and lots of other things.

what language?

PDP 11s would have been ground based - and I thought they were a bit later. There's stuff about the onboard Apollo Guidance Computer on Wikipedia. There's also a "Moon machines" Discovery channel programme about them - which is quite good, and there's a free e-book called "Computers in Spaceflight" which will frazzle your brain, if you don't die of boredom first.

Yeah but can you play the riff in Black Dog?