If you place a ripe banana next to a green tomato, the tomato will ripen due to the ethylene gas produced by the banana.
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There's a love mattress that is specifically designed for couples who sleep on each other's arms.
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There's a café in France which charges €7 for a coffee to rude customers and €1.40 to people who talk politely to staff.
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Students at MIT developed a wristband that can regulate your “thermal comfort”, which could possibly eliminate the need for central heating and cooling.
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