Reducing cadmium levels in cacao

Chocolate is almost universally adored. But few know the complicated process of how cacao beans become chocolate. Did you know cacao tree farming is done mostly by small-scale low-income farmers in Latin America, particularly ...

Renaissance for artisanal mortar

To adapt mortar to new building materials and industrial methods, the content in walls and plaster changed during the 20th century. The change meant that knowledge of historical materials and methods for producing mortar ...

Madrid orders removal of electric scooters

Madrid's city hall said Tuesday it had refused to grant a licence to three electric scooter-share companies and gave them 72 hours to remove their scooters from the streets of the Spanish capital.

Uber joins scooter wars with Lime investment

Uber made a move into electric scooters Monday, as the ride-service giant agreed to a strategic partnership with Lime, one of the major players in the fast-growing segment.

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