A Snowy Spring (by sarah)

I went out and took more photos of snow - mainly as the sun was now shining.

I have always loved sun beams

The sun seemed to exist in a strip highlighting some lovely buildings in the distance - I liked the contrast as it makes some of the buildings appear to glow.

I found a ruin at the side of the road - I think I was in Leckhampton.

Earlier on in another area I found pig stys that look almost apocolyptic.

I photoed snowy crags using max zoom.

And the best bit was I found woolly pigs! If anyone knows the bred I would be greatful if you would let me know!

Ammonites (by sarah)

I Am An Ammonite is a poem written by Marcus Moore as part of the Cotswold Water Park Trust. I feel very lucky that they all said yes to it being illustrated and placed in the Science-Art Exhibition at Centre Arts in Cheltenham. The poem is on canvas and I attempted to make it seem as if it was in a sea full of ammonites and also a sea turned to stone - all at the same time.

This week is National Science and Engineering Week which is why this week is the week of Science-Art being shown. If you get a chance do pop down - it is only there until Saturday.

If you wish to read the poem you can see it on here on Marcus's blog. And yes I took a wonky photo.

Dating of Old Monuments (by sarah)

I've been working my way through documentaries on various subjects as research for my Punk series and one of the things that keeps coming up is that you can't date monuments. You can date the last organic stuff inside them like food left overs and you can date when the stone was formed but you can't date when it was quarried and used to build the monument.

But I am wondering if this is true. When I was doing my MRes there was a technique that dealt with exposure dates - in this case sand dunes but I know it has been used for other things. If I recall correctly when a cosmic ray hits the surface it can cause little explosions which leave scars called tracts which can be counted. The number off them combined with the rate of cosmic rays hitting the surface gives you how long they have been sitting on the surface.

Now there is a similar thing that happens due to probability and atomic decay within rocks but you can tell the difference.

I can't remember all the specifics but it does seem to me that this could be used.

Obviously there would be issues such as open cast mining or quarrying could leave rocks on the surface for 1000s of years before building occurs but I think most builders would have removed weathered sides of blocks to make them look nice. Then there are issues over rock type - are different types more susceptable to the tracts forming? What if it is a composite material made of fossils and rock fragments?

Some monuments no longer have their outer layers such as the giant pyramid in Egypt so you would get a mixed date of = quarried date - time spent under cladding + time since cladding was nicked or disappeared.

But I can't see these as being worse than the issues surrounding migrating dunes. the dating of these structures would be very important for sorting out our own history and how civilisations have come to be etc...

There maybe more issues with dating like if it can only give dates accurate to 1000s when you need 100s or 10s of years or them only being relative to other techniques but I think it would add an extra layer to what we know.

Now obviously I have been out of the science world for years now and can't even remember what the names for all this sort of stuff is and I am not an archeology expert so maybe these are already being use or rejected or what ever and it just hasn't filtered through to the books and documentaries I am getting my hands on.

However I thought I would share my idea just incase - plus people may suggest other sources of info for me

p.s. having a quick little looky at stuff it would appear there are interesting optical dating methods for minerals that have been exposed to sunlight - surely some of that would be interesting to archeologists. Also another problem with the dating would be how long the monument had spent buried in the ground too!

Mary Leaky’s 100th Birthday (by sarah)

Today is Mary Leaky's 100th Birthday - later today I shall bake a cake like I did for Alan Turin and draw a picture.

For now here is a google doodle!

Mary Leaky's works are extremely important to us as a species and to me as an individual. To us as a species knowing where we came from helps us in so many ways including why we get sick etc... What happened in the evolution of hominids in general can tell us so much.

For me as an individual she was important as it was her writings that helped inspire me through my A'levels and onto a degree in geolog. Even in my final year I wasn't sure weather I wanted to work in her field or the origin of life.

During my GCSE's and A'levels I read all the books in our local library system to do with the Leaky's and paleo and geology things. It became a bit of an obsession - enough that my in-laws who live in South Africa send me books on the Leaky's.

Ballads of the Scientifica (by sarah)

Todays science-art is an album of science and tech poetry, a possible life origins story and the song I Want To Know Everything. It is available as a free download for the remainder of the week

Enjoy