Boldly going where no science show has gone before.

The Naked Scientists.

On the Naked scientists this week, the shrinking proton, new research puts the size of the proton smaller than we thought.

Also, antidepressants in water make shrimp swim towards the light and into danger.

And the bacterial boost to evolution will hear how the relationship between a fly and its bacteria

presents a novel mechanism for evolution by natural

selection. Hello I'm Ben Valsler and with me today is Helen Scales.

Hello! Also this week we're looking at the role that lasers play in medicine.

We'll be finding out how lasers are used to treat tumors and how new methods mean we could

use light to target drugs to just where we need them.

Also Mira finds out how lasers can be used for extra fast

DNA sequencing and we find out how laser tweezers can be used to see how cells

respond to each other on a one-to-one basis.

And in kitchen science, Dave will be showing me what happens when you shine a laser through something and how this can tell us about its structure.

So if you'd like to get in touch with us through Twitter, it's at Naked Scientists, or you can send any questions or comments by email to Chris at the Naked Scientists.

com.

Lifting the lab codes on the world's best science, the Naked Scientists.

This is the Naked Scientist with Ben Valsler and with Helen Scales and as usual we'll kick off with a look at this week's news.

New research published in the journal Nature suggests that the proton might be as much as 4% smaller than we previously thought,

and this discovery might prompt a re-evaluation of some trusted laws of physics.

Proton's are one of the very basic subatomic particles.

Atoms are made of protons, neutrons and electrons, except for hydrogen which doesn't actually have a neutron.

...