15.2.11

Testing, Testing Squidcam

The Amazing Bioluminescence Film has been in pre-production for months. First we had to try and anticipate conditions that might occur at sea, then we constructed scaled-down models of the kit that we intended to make. The last phase is trying the models out in our testing tanks where we recreated an ocean in miniature.

One of the creatures that we are hoping to encounter on this odyssey is a giant squid and we have worked out a system for lowering a camera into the ocean from the deck of a boat. The camera will be connected to a computer back on deck and this gives us more problems to overcome along with issues of drag, turbulance and the possibility that the squid might appear but not exactly in the right spot.

Here is John Ruthven demonstrating a prototype model made of parts supplied by his children




The sound on this is not very clear so here’s a rough transcript:

John: We’ve got this attached to a computer - and once it’s attached to a computer, the bit that’s turning can’t be let in and out because it goes round and round and would turn the whole computer and it’s assembly would be going round and round as well.

So given that we can’t do that, we’ll have to put some slack on deck and carefully play it out.

And the thought is, that as we can see the image, say there was a squid here, that was slightly too high we could pull it up so we could see the squid (device spins) - hopefully it won’t rotate like that either, the fins should stabilise it.

What you can get in the water is jogging like that so we’ve got to stop that too.

The other issues is that most sea captains are not terribly happy when they’ve got 500 metres of cable dangling off the back of their ships and they’re near rocks and they need to manouvre

3 comments:

xl said...

I cannot understand the audio. Is there a transcript?

ammonite said...

Sorry xl it is a bit fuzzy - transcription done.

xl said...

Thanks!