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OU on the BBC: What The Ancients Did For Us - The Greeks

Find out more about The Ancient Greeks programme, part of the BBC/OU's 'What the Ancients Did for Us' TV series

12 Jan
2005
Used with permission Testing Archimedes' death ray

The ancient Greek civilisation flourished for about a thousand years, not as a unified country but rather as a loose association of city states, both on the mainland of Greece and elsewhere around the Mediterranean. The philosopher Plato described the states as being like a series of frogs sitting around a pond. Although the Greeks drew on the ideas of various earlier civilisations, they were the people who, more than any other, handed down to us the foundations of our democracy, our notions of ethics and justice, our science, our mathematics and our music.

But it mustn't be forgotten that the Greeks were a warlike lot and in order to pursue their territorial ambitions they invented some deadly weapons – for instant take the bow and arrow. Aware of its limitations and short range they mechanised it like a giant cross bow. It was loaded by bearing down on it with your whole body weight and it became known as the Belly Bow. The Greeks also invented the catapult and designed monster machines that could throw huge pieces of ammunition crushing their hapless opponents. Archimedes is reputed to have built a solar powered death ray which could set ablaze any enemy ships that came in range. In wartime communications between allies is vital so they came up with telegraphy and later semaphore.

To keep their troops in the peak of fitness they invented the Olympic games of 776 BC and built wonderful stadiums to hold them in. To keep the sport fair they also invented the starting gate which was based on a torsion mechanism. To keep things fair in politics they encouraged democracy and invented Jury Allotment Machines - a clever device designed to select people for jury service which aimed to cut out the possibility of corruption. When it came to having fun they gave us drama, acting, stage sets, literature and built wonderful outdoor theatres. They also invented the first Robots to amuse and baffle the audiences, and to raise their spirits they listened to the Water Organ, a machine that claims the first known use of compressed air.

But perhaps their most amazing invention is the first known computer. This was a small box stuffed with cogs and moving parts all skilfully made and by turning a handle it would display the movements of planets to an astonishing degree of accuracy -in fact it was a planetarium.

First broadcast: Wednesday 16 Feb 2005 on BBC TWO

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Ancient Greek technologies

Archive Comments

Well, I was quite impressed by this week's programme - it highlighted some really clever technological innovations of the Greeks. The Romans adopted and adapted very many of these, as mentioned in the programme. E.g. the ballista.

If anyone is interested in, or was unconvinced by, the explanation for the Delphic Oracle's (Pythia's) trance, the original article is well worth a read: Hale, J. R., de Boer, J. Z., Chanton, J. P. and Spiller, H. A. 2003. Questioning the Delphic Oracle. Scientific American 289 (2)

Ok, so 'Greeks' is another dubious label, erroneously used for a collection of independent city-states, but good enough for the Romans, so guess we'll stick with it.

Eleanor

Archive Comments

I love this series! It really does change my perspective on today's world.

Anyway, just a thought: I was watching an old episode of Discovery Channel's Mythbusters and they tried to rebuild the Archimedes bronze shield sun-reflecting weapon and concluded that that would not have worked and the legend was a myth. The myth was actually revisited later with the same results. The critical points seem to be the fact that bronze could not get shiny enough and the target ship would have been wet ("Ancients" used steel mirrors and a dry wooden boat)

I have to say the method used on Mythbusters in this case was a little more convincing...

Out of curiosity, I would like to know if there have been any other studies/experiments proving the truth of this legend.

It would be very interesting to see how the giant claw might have worked too...

Re: Ancient Greek technologies

Archive Comments

If Archimedes put his mind to something it was a done deal.

I am sure if brass, bronze or copper, was not shinny enough, he would put some type of wax, or some other substance that would melt or polish, and create a shinny surface on the dish. I have never heard a claim about Archimedes that could not be substantiated. He may have tinned the whole surface as well. That would shine up well.

I know a fellow that built a PVC tubing grid and mounted truck mirrors to it, it focused a bunch of truck mirrors on a single point. He could actually boil water.

Sincerely,

William McCormick

Re: Ancient Greek technologies

Archive Comments

Tinned copper would make an excellent mirror. You can polish tin with ease, and it adheres readily to copper or brass.

Sincerely,

William McCormick

Re: Ancient Greek technologies

Archive Comments

Re : Heron's steam ball.
Hello,
I am a kinetic sculptor
I was asked to make a Heron's steam Ball for a programme about Heron made for the discovery channel. With great respect, I think mine wasMuch more authentic than the one on last weeks programme which looked more like a victorian toy.
And much more like the one in a museum in greece which i worked from images taken from the museum piece.
The "original" design spouted steam and fire in a spectacular way and produced a lovely noise - much more photogenic!

http://www.metalchicken.co.uk/html/steamball.html

If you need more steam powered sculptures, why not ask me to make one next time?. Regards, Mike
The BBC and the Open University are not responsible for the content of external websites
[Edited by: Simon (moderator) on 13-Apr-2005 20:58]

Re: Ancient Greek technologies

Archive Comments

Re : Heron's steam ball.
Hello,
I am a kinetic sculptor
I was asked to make a Heron's steam Ball for a programme about Heron made for the discovery channel. With great respect, I think mine wasMuch more authentic than the one on last weeks programme which looked more like a victorian toy.
And much more like the one in a museum in greece which i worked from images taken from the museum piece.
The "original" design spouted steam and fire in a spectacular way and produced a lovely noise - much more photogenic!

http://www.metalchicken.co.uk/html/steamball.html

If you need more steam powered sculptures, why not ask me to make one next time?. Regards, Mike
The BBC and the Open University are not responsible for the content of external websites
[Edited by: Simon (moderator) on 13-Apr-2005 20:58]

Very nice.

It is great to see some of these things often thought of as myth or untried built. If only to see how they worked.

Sincerely,

William McCormick

Re: Ancient Greek technologies

Archive Comments

Thanks Mike - yes, your version is most impressive!

Eleanor

Re: Ancient Greek technologies

Archive Comments

Thank you for the pointers.

Thoroughly enjoyed the show - as all the programmes in the series.

I hope it goes to counter some of the people I occasionally encounter when they come out with such gems as, who cares what they did, it was ages ago....well matters a hell of a lot actually!

Re: Ancient Greek technologies

Archive Comments

Thanks Missy :-)

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