The bark is brown and scaly, and at around 5-6 years old the tree begins to bear fruit.
The digital release is occurring on the same day as the publication of Seeing Further (Harper Press, £25), an illustrated history of the Royal Society edited by Bill Bryson, which marks the Royal Society's 350th anniversary this year.
So it turns out the apple story is true - for the most part.
Amanda Gefter, Books & Arts editor We've all heard the story. It is the manuscript for what would become a biography of Newton entitled Memoirs of Sir Isaac Newton's Life written by William Stukeley, an archaeologist and one of Newton's first biographers, and published in 1752.
A young Isaac Newton is sitting beneath an apple tree contemplating the mysterious universe. Newton told the apple story to Stukeley, who relayed it as such: "After dinner, the weather being warm, we went into the garden and drank thea, under the shade of some apple trees..told me, he was just in the same situation, as when formerly, the notion of gravitation came into his mind.
It is one of the most famous anecdotes in the history of science.
The young Isaac Newton is sitting in his garden when an apple falls on his head and, in a stroke of brilliant insight, he suddenly comes up with his theory of gravity.
The apple tree fruit The fruit matures in summer, and is picked in the Autumn.
The apples vary in colour from green, yellow and red.
When she drunkenly allowed a work colleague, George Selway, see her lover’s lewd texts, the consequences were far graver than her husband merely finding out.