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Blurring

Rather than capturing a frozen moment, some artists and designers will use techniques to suggest movement over a period of time.

In photography, this can be achieved through the use of a long exposure.

Georgia O'Keeffe - Hands, Alfred Stieglitz, 1919, photograph, World History Archive / Alamy聽Stock Photo
Image caption,
Georgia O'Keeffe - Hands, Alfred Stieglitz, 1919, photograph, World History Archive / Alamy聽Stock Photo

In Alfred Stieglitz鈥檚 photograph of his wife Georgio O鈥橩eefe鈥檚 hands (1918) the blurring of the image against a black background draws our attention.

Blurring shows the movement of the hands as one scratches into the other in a way that a frozen image would not.

The sense of movement adds to the unsettling feel of the image.

Georgia O'Keeffe - Hands, Alfred Stieglitz, 1919, photograph, World History Archive / Alamy聽Stock Photo
Image caption,
Georgia O'Keeffe - Hands, Alfred Stieglitz, 1919, photograph, World History Archive / Alamy聽Stock Photo
Long聽exposure聽of聽night聽sky聽over聽Aoraki聽Mount聽Cook聽National聽Park, robertharding / Alamy聽Stock Photo
Image caption,
Long聽exposure聽of聽night聽sky聽over聽Aoraki聽Mount聽Cook聽National聽Park, robertharding / Alamy聽Stock Photo

This image of the night sky has been taken with a very long exposure. The position of the stars has changed significantly during the exposure time.

The resulting image transforms stars from bright spots to curves of light that reflect the turn of the earth. This gives a sense of energy to what we would ordinarily see as a static scene.

Dynamism of a Cyclist, 1913, Umberto Boccioni, pen and ink on paper, Estorick Collection, London, UK / Bridgeman Images
Image caption,
Dynamism of a Cyclist, 1913, Umberto Boccioni, pen and ink on paper, Estorick Collection, London, UK / Bridgeman Images

Umberto Boccioni's Dynamism of a Cyclist (1913) shows how the use of line can imply movement on a static canvas.

This time the medium is pencil, but again the artist has used broken, curved lines to imply movement of the bicycle and the scene.

This is particularly clear in the unfinished circles of the bike wheels and the blurred legs which suggest they are moving quickly on the pedals.

This sketch is an example of - an art movement from the early 20th century with a great interest in the movement and speed of modern life and technology.