Week 5

Rebecca says:

What happened this week?

This week was a bit quieter on my side, as it was all happening in the lab!

What did you learn?

Unfortunately our original model making plan fell through. I’ll be on the hunt for alternatives this week.

What are you most inspired by/excited about?

Our artist profile is now live on the Art in the Dark website!  We’re up there with a number of other artists doing some very cool looking projects – definitely take a moment to check them out.

What’s next?

Siouxsie is picking up an AC power pack so that we can re-run the time-lapse without having to worry about the battery running out.

We’ll hopefully be able to show you a video by next week!

Siouxsie says:

What happened this week?

This week I’ve been processing all the images taken from the time-lapse photography and turning them into a movie. It was a little disappointing to be honest, as I somehow managed to knock the focus and so for half the movie the pictures were all fuzzy. Very frustrating!

I’ve also analysed the data from the experiment that my postdoc Jimmy set up. We tried growing two different naturally bioluminescent bacteria in eight different growth media. Interestingly they preferred different conditions to grow in and expressed their light a little differently.

Looking at graph A, the brightest signal for Bioluminescent Bacteria 1 (BB1) was after growing in media E and it reached its peak glow after 8 hours. However, in graph B we can see that BB2 prefers media A. When we compare these two in graph C, we can see that BB1 is more than 10x brighter than BB2 and that it reaches its peak faster and stays at its peak for longer.

Graphs

What did you learn?

That making a time-lapse movie is hard work and will take some practise to get right.

What are you most inspired by/excited about?

Now that we’ve found a couple of good conditions for growing the bacteria, I’m keen to try them on a larger scale and see just how bright they will be.

What’s next?

This week I’ll be trying the time-lapse photography again, as well as repeating the growth experiments to see how bright 300,000 relative light units actually is to the human eye!

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