The Cell - a photo on Flickriver

The Cell

            The Postcard

A postally unused postcard published by Judges Postcards Ltd. of Hastings, England.

On the divided back of the card they have printed:

'Interior of Cell.
Science Museum. Painting by 
John Barber and Cynthia Clarke.
This shows a generalised animal
cell. The central sphere is the
nucleus which contains the DNA'.

100 billion cells! Wow! And to think that every single one of them is of almost infinite complexity - vastly more complicated than is represented by the artwork.

And your body is constantly replacing old cells with new ones at the rate of millions per second. By the time you finish reading this sentence, 50 million of your cells will have died and been replaced by others. 

Some are lost through 'wear and tear', some just reach the end of their life, and others deliberately self-destruct. The life cycle of every cell is carefully controlled, so you should always have just the right number of each type of cell.

An 80-year old individual over the course of their lifetime will have produced over 12,614,400,000,000,000 cells. Assuming an average cell size of 100 micrometers, if this number of cells were arranged in a square with no gaps between them, the square would have sides over 11 kilometres (7 miles) long.  Another Wow!
   

Taken on: April 22, 2019

Tags:

postcard

old

nostalgia

nostalgic

cell

Judges

Hastings

England

interior

Science

Museum

painting

John

Barber

Cynthia

Clarke

animal

central

sphere

nucleus

DNA

replacing

new

wear

tear

self

destruct

44CEL72 « less

Sets appears in: • Fine Art • Museums, Art Galleries and Libraries

Camera: HP Scanjet djf4100 (more info) (hide info)

Camera:	HP Scanjet djf4100
Saturation:	Low
Sharpness:	Soft
Color Space:	sRGB
Software:	PaintShop Pro 18.00
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