Five Best Ideas of the Day
Published each weekday, at noon.
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We might not have enough minerals to meet electric car demand.
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Could this pay-by-the-minute gym app make memberships history?
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Spider venom could unlock environmentally friendly pesticides.
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In Lima, billboards don’t just advertise. They’re cleaning the air and providing drinking water.
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Self-driving cars may revolutionize life for people with disabilities.