Dictyostelium discoideum, A Slime Mould

 A friend donated to me a culture of Dictyostelium discoideum, a cellular slime mold. I have had great fun watching its various stages right through to forming fruiting bodies. Ours were fed on oats but 'in the wild' they live on the bacteria in soil.They first exist as separate single-celled amoebae, but after consuming all the bacteria in their area they proceed to stream together to form a multicellular organism. These features make them a valuable tool for studying developmental processes and also for investigating evolution of multicellularity. Long thought to be a type of fungus, it has recently been shown that slime molds in fact bear no relation to fungi. They are now classed as Mycetozoa. (Images taken with a USB powered microscope)

Argumentative Redpolls

We have had up to a dozen Redpolls together visiting our feeders and squabbling over the perches. These are joined by Goldfinches and Starlings.

All Saints Croydon-cum-Clopton

Croydon-cum-Clopton were originally two communities joined together in 1561 due to a decline in population. Today Clopton is a lost village and most of Croydon medieval village lies under farmland. The Church of All Saints dates mostly from the 14th century, with a 12th century font. Due to the lack of substantial foundations and movement of the land around it, the church is under restoration with cracked walls, haphazard leanings and uneven floor. The Downing family (who owned and built Downing Street in London and founded Downing College in Cambridge) had extensive interests in Croydon and they totally rebuilt the chancel in the 1685. Beneath the Chancel is a crypt for the Downing family.

Paxton Birds

A few other bird images taken at Paxton last week - Magpie and Heron in flight, Dunnock and Wood Pigeon, small warbler - probably overwintering Chiff Chaff, and an active Moorhen. The water level in the Pits is higher than I have seen it.

Arrington Church in Infrared

A set of images of  St. Nicholas church in Arrington taken with my very old Canon 1DmkII which I had converted to infrared. It produces beautifully sharp images with shallow depth of field  (all at f2.5 with 50mm lens) with an interesting colour combination when the white point is adjusted to neutral on some area of the frame. I even found a couple of carved angels in the churchyard - a favourite subject of mine for infrared.

 

Creative Cityscapes with Household Objects

Our Camera club project for this month is Creating landscapes etc using household objects. Here is the contents of our 'odds and ends' box (set up shown at end). These are unmanipulated images - the daytime ones use a printed cloud background.  The city is on a black tile on our black kitchen table which is covered by a thin film of cooking oil to give a wavy reflection.