And the Hello, and this week, with Bonfire Night only a few days away we take a quick

fire look at the science behind fireworks plus we find out whether wind farms could

be made more efficient just by laying them out differently and I'm here live at the UK's National Cancer

Research Institute conference to hear about the latest breakthroughs in combating

and diagnosing cancer including a new way to track how the disease is behaving just by studying a blood sample.

We have a way of looking in blood and understanding what's going wrong in the cancer and

potentially working out how big the cancer is or how well your treatment is working by

quantifying how much of these faulty instructions are floating around.

And on the subject of cancer, our quiz this week,

can you tell us what tree is proving very helpful

for doctors trying to treat cancers?

If you would like to get in touch with the program with any

thoughts, comments or feedback or answers, then you can email Chris at the

Naked Scientists dot com. You can tweet at naked scientists and you can also find

us on Facebook Facebook Facebook.com slash The Naked Scientists.

The Naked Scientists Podcast is powered by UKfast.co.uk. UK. Fast. this week. Cat, waggy dog story. It certainly is. Are you a dog person Chris? I am. I've had a

succession of dogs across my life. I love dogs too and now this is a great piece of

research about dogs because scientists have discovered that the direction in which a dog wags its tail

tells other dogs what it's thinking, and that's according to near research published in the

journal Current Biology.

Now animal behavior researchers already know that tail wagging isn't just a back and forth

affair. The wag can be biased towards either the right or the left, but a closer look shows

...