Lentil As Anything, a successful Australian restaurant, allows its customers to pay whatever price they feel like paying for the food.
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MIT has developed a camera that captures the speed of light at a trillion frames per second.
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India's richest person, Mukesh Ambani, built a $1 billion home. It has 27 habitable floors, including six parking floors with a capacity to hold up to 168 cars. 600 staff maintain the home.
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