From Mark Twain, American writer, to Olivia Langdon, his future wife May 12, 1869
"Out of the depths of my happy heart wells a great tide of love and prayer for this priceless treasure that is confided to my life-long keeping. You cannot see its intangible waves as they flow towards you, darling, but in these lines you will hear, as it were, the distant beating of the surf."
Tools designed to ensure computer code in smart cars does not crash has been inspired by hungry penguins.
The rounded sleeping capsules send guests drifting into ocean before arriving on desert island by morning.
Sitting on the saddle activates the part of the brain responsible for learning, a study has claimed.
Scientists are appealing for more people to donate their brains for research after they die.
Life on Earth may have arrived from Mars on an asteroid, scientists have claimed.
Lunar mission scheduled at the end of 2017 could find out if beer can be brewed on the moon.
A bottle used to teach children how far litter can travel ended up on Scottish beach after 8,700-mile journey.
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