opal wales

Seeing the tree in a wood

By Barbara Brown, OPAL Community Scientist in South Wales

Tree in wood with zoom blur effect

If you have ever recognised a face in a crowd when you are not searching, when you are thinking about that band, or the bus times… then suddenly, something in your subconscious flashes out “look there”... you will understand how a person can pick out the needle in the haystack which is one small sick tree in a wood.

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