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Mary Grierson: Floral artist celebrated as one of the most

In 1960 a woman applied for the post of exhibitions officer at the Royal Botanic Gardens at Kew. She didn't get the job, but was able to show her interviewers her portfolio of flower paintings, and was engaged instead as an artist in the herbarium. This was Mary Grierson, soon to become recognised as one of the world's most distinguished botanical artists.

Cyber Culture: Why hackers are being asked to come and have a go, if

Security personnel tend not to challenge the public to sneak unnoticed into buildings they're guarding, preferring to give the impression that the entrances are impregnable and they themselves are invincible. But the "keep out or else" approach doesn't work online, where cyber attacks are rampant and the task of thwarting them is too colossal for stretched IT departments.